{"title":"Thread Repair","description":null,"products":[{"product_id":"crank-saver","title":"Crank Saver Kit - 1695MB1-US","description":"\u003cp\u003eA crank arm with stripped pedal threads is one of the more expensive failures a bike can hand a customer. Replacement crank arms ballpark from low three figures at the entry tier well into the four figures for premium carbon road and DH cranks; a stripped left arm on a high-end Shimano or SRAM crankset can land in the same price band as a complete entry-level groupset on its own.\u003c\/p\u003e\n\u003cp\u003eThe Crank Saver Kit is the workshop intervention that turns that failure from a parts purchase into a repair. The kit reams the existing pedal threads out to a larger oversize, cuts a new 5\/8″ × 24 TPI oversize thread in the reamed bore, and threads in a steel insert that restores the original 9\/16″ × 20 TPI pedal-thread spec. The crank arm is back to standard pedal threads; the next pedal install is normal pedal-install work, not a salvage operation.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReaming pedal taps\u003c\/strong\u003e for both the left (LH) and right (RH) crank arms; left pedals are left-hand thread to resist loosening under pedalling load, so the kit ships with one of each direction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap handle\u003c\/strong\u003e with the right interface for the reaming taps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel pedal-thread inserts\u003c\/strong\u003e — two 10-piece sets, one per side, 20 in total — sized to 9\/16″ × 20 TPI on the inside, with a 5\/8″ × 24 TPI outer thread that mates with the tapped bore.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel storage case\u003c\/strong\u003e with our SOS foam cut-outs holding each component in its labelled position. The case earns its keep on the workshop bench: pulling out the kit shows you immediately whether anything is missing or out of place.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow the repair works\u003c\/h2\u003e\n\u003cp\u003eWhen a pedal threads come out of a crank arm with the pedal still attached, the threads in the arm are usually the failure point (aluminium thread under cyclic load, often after a previous over-tightening or cross-threading event). Replacing the arm is one option; the other, far cheaper option is the thread-insert repair the Crank Saver enables.\u003c\/p\u003e\n\u003cp\u003eThe reaming tap cuts the damaged threads out of the arm's bore and reams the bore to the insert's outer-thread size. The insert threads into the freshly cut bore and is secured with strong thread locker (its inner threads are factory-cut to the standard 9\/16″ × 20 TPI pedal spec). Once cured, the insert won't back out under pedal-install or pedal-use torque.\u003c\/p\u003e\n\u003cp\u003eA pedal threaded into the inserted bore takes the same torque spec as a pedal threaded into a fresh crank arm. The repair restores full strength.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAluminium crank arms with stripped 9\/16″ × 20 TPI pedal threads (the standard pedal thread for adult bicycles)\u003c\/li\u003e\n\u003cli\u003eBoth left (LH) and right (RH) sides; the kit includes taps for each direction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot for\u003c\/strong\u003e carbon-fibre crank arms (the reaming step requires aluminium substrate; pedal-thread failures on carbon arms typically require manufacturer-warranty service or arm replacement).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The Crank Saver Kit packages the workshop pedal-thread repair into one steel case with our SOS foam cut-outs; the case is the difference between a kit that lives on the bench and one that scatters through a parts bin within six months.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eMost stripped pedal threads we see are the result of a pedal that backed out under riding load. Two prevention steps go a long way: tighten pedals to the manufacturer's spec (most current pedals call for around 35–40 Nm, with the pedal held still and the crank rotated, so torque is delivered cleanly), and always start the pedal threads by hand. A pedal that's hand-tight before the wrench engages is on-axis; one that takes a wrench to start is cross-threading.\u003c\/p\u003e\n\u003cp\u003eFor the broader crank-tools decision tree (puller selection, cap-tool gotchas, and when a crank is past saving): How to remove a crankset →.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the Crank Saver repair a stripped pedal thread?\u003c\/strong\u003e The reaming tap cuts the damaged threads out of the crank arm and cuts a new 5\/8″ × 24 TPI oversize thread in the bore in one operation — no separate tap is needed. A steel insert then threads into that seat and is secured with strong thread locker; its inner thread is factory-cut to the standard 9\/16″ × 20 TPI pedal spec, so any standard pedal installs normally afterwards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich crank arms can it repair?\u003c\/strong\u003e Aluminium crank arms with stripped 9\/16″ × 20 TPI pedal threads — the standard pedal thread on adult bikes — on either side: the kit includes direction-specific left and right taps, since left pedals use a left-hand thread. It is not for carbon-fibre arms, which can't be reamed and typically need manufacturer service or replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat exactly is in the case?\u003c\/strong\u003e Six components: the tap handle (1695\/4BI-US), left and right reaming taps (1695.1AL \/ 1695.1AR), one 10-piece set of left-hand inserts (1695.4A) and one 10-piece set of right-hand inserts (1695.3A) — 20 inserts in total — all in a 321 × 198 × 54 mm metal storage case with labelled foam cut-outs. The complete kit weighs 4.5 kg.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I buy replacement inserts once the kit runs low?\u003c\/strong\u003e Yes. The left (1695.4A) and right (1695.3A) pedal-thread inserts are sold separately as 10-piece refill sets, and the reaming taps and tap handle are also available individually — the taps are hardened premium flex plus carbon steel and last through many repairs. Like all Unior tools, the kit carries a lifetime warranty.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"Default Title","offer_id":35720684503193,"sku":"626980","price":159.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/7708\/2777\/files\/1695mb1-us.jpg?v=1787169517"},{"product_id":"pedal-thread-inserts-10-pieces-set-right-58x24","title":"Right Pedal Thread Inserts, 10-Pack - 1695.3A","description":"\u003cp\u003eThe Right Pedal Thread Insert 1695.3A is the rescue part for a stripped right-hand pedal thread. The insert installs into a freshly reamed crank arm hole and accepts a standard right-hand 9\/16\" × 20 TPI pedal. After the thread locker cures, the crank takes the original right-hand pedal at full working torque.\u003c\/p\u003e\n\u003cp\u003eThe \"right\" designation matters: the right pedal threads in the standard clockwise direction, and the insert's inner thread is sized to match. The \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-left-58x24\"\u003eLeft Pedal Thread Insert\u003c\/a\u003e handles the left-hand pedal thread (which is reverse-threaded by bicycle convention to prevent loosening under pedaling).\u003c\/p\u003e\n\u003ch2\u003eHow the insert sits in the rescue workflow\u003c\/h2\u003e\n\u003cp\u003eThe complete rescue:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReam the failed thread.\u003c\/strong\u003e The \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-right\"\u003e1695.1AR Right Reaming Tap\u003c\/a\u003e cuts the failed thread away and cuts a new thread pattern sized for this insert. Use the \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003eHandle for Pedal Taps 1695\/4BI\u003c\/a\u003e for leverage and alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThread-lock the insert.\u003c\/strong\u003e Apply a strong thread locker (green or red typical) to the outer thread of the insert.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInstall the insert into the reamed hole.\u003c\/strong\u003e Hand-thread until flush with the crank face. Don't over-torque; the locker does the holding work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCure.\u003c\/strong\u003e 24 hours typical for a strong cure. The pedal can be installed normally after curing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eMaterial and form\u003c\/h2\u003e\n\u003cp\u003eThe insert is a solid steel sleeve; not a spring-coil thread insert. The solid form holds the thread profile under cyclic load better than a spring insert; pedals see hundreds of millions of force-cycles over a working lifespan, and the insert's job is to stay rigid through all of them.\u003c\/p\u003e\n\u003cp\u003eThe outer thread is sized to match the cut profile of the 1695.1AR reaming tap. The inner thread is the standard 9\/16\" × 20 TPI right-hand pedal thread, identical to a stock crank's pedal hole.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the pack\u003c\/h2\u003e\n\u003cp\u003e10 inserts per pack. A working shop uses inserts on every Crank Saver service; stocking by the pack is the working-shop economics.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRight-hand thread, 9\/16\" × 20 TPI inner\u003c\/li\u003e\n\u003cli\u003eOuter thread sized for \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-right\"\u003e1695.1AR Right Reaming Tap\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e10 inserts per pack\u003c\/li\u003e\n\u003cli\u003eSolid steel sleeve\u003c\/li\u003e\n\u003cli\u003eArticle number: 1695.3A (right-hand variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1695.3A is part of Unior's purpose-built pedal-thread-rescue system. The complete kit (taps, handle, inserts) is sold as the Crank Saver Kit for shops setting up the full workflow; individual components are stocked for shops re-supplying consumables.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eThe cure time on the thread locker is the most-skipped step in pedal-rescue jobs. A shop that installs the pedal \"right away\" because the customer is waiting often gets a callback for a loose insert two months later. A reliable pedal-rescue workflow includes the cure time on the schedule. Our workshop hand tools guide walks through the workflow and the rest of the workshop hand-tool layer: Workshop hand tools every bike shop needs →\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow many inserts do I get for the price?\u003c\/strong\u003e Ten. The 1695.3A is sold as a 10-piece set, the same pack Unior supplies to shops. Each repair uses one insert, so a pack covers ten stripped right crank arms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit a left crank arm?\u003c\/strong\u003e No. These are right-hand inserts with a standard clockwise 9\/16\" x 20 TPI inner thread. The left pedal thread is reverse-threaded by bicycle convention, so the left crank needs Unior's left-hand insert set (article 1695.4A).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a special tool to install them?\u003c\/strong\u003e Yes. The crank arm must first be reamed with the Unior 1695.1AR right reaming tap, which cuts the 5\/8\" x 24 TPI seat the insert's outer thread matches. The insert is then set with a strong thread locker and left to cure before the pedal goes back in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich pedals fit after the repair?\u003c\/strong\u003e Any pedal with the standard 9\/16\" x 20 TPI thread, which covers nearly all adult-bike pedals. The insert's inner thread is identical to a stock crank's pedal hole, and the pedal runs at full working torque once the thread locker has cured.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"Default Title","offer_id":35720700493977,"sku":"616551","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/7708\/2777\/files\/1695.3a.jpg?v=1787170427"},{"product_id":"pedal-taps-58x24-right","title":"Right Pedal Reaming Tap - 1695.1AR","description":"\u003cp\u003eThe right-hand pedal thread on a crank arm fails in two common ways. The customer cross-threads the pedal at first install, cutting new (wrong) angle threads through the existing pattern. Or years of road dirt and corrosion in the thread eventually destroy the engagement surface. Either way, chasing the existing thread won't recover it. The Right Pedal Reaming Tap 1695.1AR is the tool that does.\u003c\/p\u003e\n\u003cp\u003eThe 1695.1AR cuts the failed right-hand thread away, enlarges the hole to a precise oversize diameter, and cuts a new thread pattern sized for the \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-right-58x24\"\u003eRight Pedal Thread Insert 1695.3A\u003c\/a\u003e. \"Right\" matters; the right pedal threads in the standard clockwise direction, and the tap geometry is sized to match.\u003c\/p\u003e\n\u003ch2\u003eThe reaming workflow\u003c\/h2\u003e\n\u003cp\u003ePair the 1695.1AR with the \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003eHandle for Pedal Taps 1695\/4BI\u003c\/a\u003e for leverage and alignment. The handle's square-drive socket holds the tap square to the crank face during the cut, which matters because the first turn establishes the new thread's angle relative to the pedal axis. An off-axis first turn means an off-axis thread, which means a pedal that threads in but doesn't seat square against the crank.\u003c\/p\u003e\n\u003cp\u003eThe reaming section of the tool removes the failed thread material. The trailing thread-cutting section cuts the new thread profile. The result is a precision-sized, freshly cut hole ready for the thread insert. Thread the \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-right-58x24\"\u003eRight Pedal Thread Insert\u003c\/a\u003e in with strong thread locker, let it cure, and the crank takes a standard pedal again.\u003c\/p\u003e\n\u003ch2\u003eCrank Saver Kit context\u003c\/h2\u003e\n\u003cp\u003eThe 1695.1AR is one of four components of the full pedal-thread rescue system. The others: the \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-left\"\u003e1695.1AL left reaming tap\u003c\/a\u003e, the \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003ehandle\u003c\/a\u003e, and the \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-right-58x24\"\u003ethread inserts\u003c\/a\u003e. The complete kit (Crank Saver) ships as a single package; the individual parts are useful for a shop that's lost one component or stocks specific sizes.\u003c\/p\u003e\n\u003ch2\u003eWhen to choose a reaming tap vs. a chase tap\u003c\/h2\u003e\n\u003cp\u003eChase the thread (with the \u003ca href=\"\/en-ca\/products\/pedal-taps-916-x-20-tpi\"\u003ePedal Tap Set 1695.1\u003c\/a\u003e) when the existing thread is intact but dirty, slightly corroded, or paint-blocked. Ream the thread (with the 1695.1AR) when the existing thread is stripped, cross-cut, or torn out and won't hold a pedal under load. The distinction matters: use the chase tap on a thread that needs reaming, and the chase won't fix it. Use the reaming tap on a thread that just needs chasing, and you're cutting good metal away unnecessarily.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRight-hand reaming and thread-cutting tap\u003c\/li\u003e\n\u003cli\u003eCuts a 5\/8\" × 24 TPI oversize seat thread; the finished insert restores the standard 9\/16\" × 20 pedal thread\u003c\/li\u003e\n\u003cli\u003eSquare-shank engagement, compatible with \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003e1695\/4BI Handle for Pedal Taps\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePair with \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-right-58x24\"\u003eRight Pedal Thread Insert 1695.3A\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eArticle number: 1695.1AR. Length 85.5 mm, weight 80 g, premium flex plus carbon steel, hardened\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1695 system is a Unior-specific design; the reaming-and-thread-insert pairing was developed for the cycling repair trade, not adapted from a general-machinery thread-repair kit. The threads on the insert match the cut profile of the reaming tap; substituting a Heli-Coil-style generic insert won't work because the thread profile doesn't fit.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eThe mechanic-economics on pedal-thread rescue are simple. A crank-arm replacement is $80–$300 depending on the build. The Crank Saver service is the cost of two tap turns plus an insert. The shop that does the rescue keeps the customer's bike running for a fraction of the replacement cost. Our workshop hand tools guide walks through the full pedal-thread workflow: Workshop hand tools every bike shop needs →\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the right tap or the left one?\u003c\/strong\u003e The 1695.1AR is for the right (drive-side) crank arm, which uses a standard clockwise pedal thread. The left arm is reverse-threaded and takes the 1695.1AL instead. The taps are not interchangeable; the cutting geometry is handed. If you are rescuing both arms, or stocking a shop bench, you want both taps plus the matching left and right inserts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat thread does this tap actually cut?\u003c\/strong\u003e A 5\/8\" × 24 TPI oversize thread. That is deliberately larger than the 9\/16\" × 20 pedal standard: the tap clears out the failed thread and cuts a new seat sized for the 1695.3A thread insert, and it is the insert that returns the arm to a standard 9\/16\" × 20 pedal thread. The tap on its own does not restore the original thread, so plan on the insert as part of the job.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I drive the tap, and does alignment matter?\u003c\/strong\u003e The shank ends in a square drive that pairs with the Handle for Pedal Taps 1695\/4BI. Alignment matters most on the first turn: the reaming section should sit square to the crank face before you load it, because the angle you start at is the angle the new thread follows. Cut slowly with cutting fluid and back off periodically to clear chips.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMy pedal threads are just dirty, not stripped. Is this the wrong tool?\u003c\/strong\u003e Yes. A thread that is intact but fouled by dirt, corrosion or paint only needs chasing with the standard Pedal Tap Set 1695.1, which cleans the existing 9\/16\" × 20 thread without removing sound metal. Reach for the 1695.1AR only when the thread is stripped, cross-threaded or torn out and will no longer hold a pedal under load.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"Default Title","offer_id":35720700657817,"sku":"616553","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/7708\/2777\/files\/1695.1ar.jpg?v=1787170411"},{"product_id":"pedal-thread-inserts-10-pieces-set-left-58x24","title":"Left Pedal Thread Inserts, 10-Pack - 1695.4A","description":"\u003cp\u003eThe Left Pedal Thread Insert 1695.4A is the part that turns a stripped left-hand pedal hole back into a working pedal thread. The insert is a sleeve with two thread profiles: an outer thread that engages the freshly cut hole left by the \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-left\"\u003e1695.1AL Left Reaming Tap\u003c\/a\u003e, and an inner thread that matches the standard 9\/16\" × 20 TPI left-hand pedal thread.\u003c\/p\u003e\n\u003cp\u003eOnce the insert is installed and the thread locker has cured, the crank arm takes any standard left-hand bicycle pedal. The customer rides away on the same crank they came in with.\u003c\/p\u003e\n\u003ch2\u003eThe complete rescue workflow\u003c\/h2\u003e\n\u003cp\u003eA successful pedal-thread rescue is four steps:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReam the failed thread.\u003c\/strong\u003e Use the \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-left\"\u003e1695.1AL Left Reaming Tap\u003c\/a\u003e on the \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003eHandle for Pedal Taps 1695\/4BI\u003c\/a\u003e. The reaming portion cuts the failed thread away and enlarges the hole; the thread-cutting portion cuts a new thread sized for the insert.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eApply thread locker to the insert.\u003c\/strong\u003e A strong thread locker; typically a green or red; gives the insert the bonding it needs to stay put under repeated pedal removal-and-install cycles. Apply to the outer thread of the insert, not the inner thread.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInstall the insert into the crank arm.\u003c\/strong\u003e Thread it in by hand until it bottoms out. Don't over-torque; the insert should sit flush with the crank face.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLet the thread locker cure.\u003c\/strong\u003e Follow the locker manufacturer's cure time (typically 24 hours for a strong cure under no load). Then the pedal can be installed normally.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eWhy a pedal-specific insert vs. a Heli-Coil\u003c\/h2\u003e\n\u003cp\u003eA generic Heli-Coil-style spring insert engages the host thread on its outer profile and accepts a fastener on its inner profile, but the spring's coils flex slightly under load. For a pedal; which sees high cyclic load, vibration, and the regular install-and-remove cycle; a solid sleeve insert holds the thread profile more consistently than a spring insert. The 1695.4A is a solid sleeve, sized specifically for the 9\/16\" × 20 TPI left-hand pedal thread.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the pack\u003c\/h2\u003e\n\u003cp\u003e10 inserts per pack. That's enough for several rescue jobs; the inserts don't go stale on a shelf, and the working-shop economics of pedal rescue favor stocking the consumable in volume.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLeft-hand thread, 9\/16\" × 20 TPI inner\u003c\/li\u003e\n\u003cli\u003eOuter thread sized for \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-left\"\u003e1695.1AL Left Reaming Tap\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e10 inserts per pack\u003c\/li\u003e\n\u003cli\u003eArticle number: 1695.4A (left-hand variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1695.4A insert is a Unior-specific design that matches the cut profile of the 1695.1AL reaming tap. Substituting a generic thread insert (Heli-Coil, Time-Sert) will not fit; the thread profile is different.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003eA shop that does pedal rescue gets known for it. Customers bring in their cranks expecting to hear about a replacement; they leave with the same crank and a $60 invoice instead of a $200 one. Our workshop hand tools guide covers the full pedal-rescue workflow and the rest of the workshop hand-tool layer: Workshop hand tools every bike shop needs →\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there 10 inserts in the pack — do I need all of them for one repair?\u003c\/strong\u003e One rescue uses one insert. The 1695.4A ships as a 10-piece set because it's a workshop consumable: the inserts don't age on the shelf, and a shop that does pedal-thread rescue goes through them. The price is for all ten inserts, not one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know I need the left insert and not the right one?\u003c\/strong\u003e The left crank arm uses a reverse (left-hand) pedal thread, so it needs this 1695.4A left insert with its 9\/16\" x 20 TPI left-hand inner thread. The right crank arm takes the 1695.3A right insert. Installing the wrong hand will not accept your pedal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need the 1695.1AL reaming tap to install these inserts?\u003c\/strong\u003e Yes. The insert's outer 5\/8\" x 24 TPI left-hand thread is sized to the seat the 1695.1AL left reaming tap cuts into the crank arm. A generic thread insert or a hole that hasn't been tapped to this profile will not hold the insert.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich pedals fit after the insert is installed?\u003c\/strong\u003e Any standard left bicycle pedal with the 9\/16\" x 20 TPI left-hand thread — that covers virtually all modern two- and three-piece cranks. Let the thread locker cure per its manufacturer's instructions before installing the pedal at full torque.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"Default Title","offer_id":35720700854425,"sku":"616552","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/7708\/2777\/files\/1695.4a.jpg?v=1787170422"},{"product_id":"pedal-taps-58x24-left","title":"Left Pedal Reaming Tap - 1695.1AL","description":"\u003cp\u003eWhen a left-hand pedal thread is past the point where chasing will recover it; stripped, partially cross-threaded, or torn out at the entry; the crank arm isn't done. The Left Pedal Reaming Tap 1695.1AL cuts the failed thread away, enlarges the hole, and cuts a new thread sized for the \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-left-58x24\"\u003eLeft Pedal Thread Insert 1695.4A\u003c\/a\u003e. Insert installed, the crank takes any standard 9\/16\" pedal again.\u003c\/p\u003e\n\u003cp\u003eThe \"left\" matters. Bicycle left-hand pedals use a reverse-threaded engagement (the left pedal threads counterclockwise to tighten). The reaming tap has to match that geometry, which is why the 1695.1AL is sized and threaded specifically for the left-hand pedal hole. The right-hand version is the \u003ca href=\"\/en-ca\/products\/pedal-taps-58x24-right\"\u003e1695.1AR\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eHow the reaming process works\u003c\/h2\u003e\n\u003cp\u003eThe reaming tap is two tools in one shank. The leading section is a reamer that cuts away the existing (damaged) thread profile and enlarges the hole to a precise oversize diameter. The trailing section is a thread tap that cuts a new thread pattern in the freshly enlarged hole, sized to accept the pedal thread insert.\u003c\/p\u003e\n\u003cp\u003eMate the 1695.1AL to the \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003eHandle for Pedal Taps 1695\/4BI\u003c\/a\u003e for the leverage to cut cleanly through aluminum. Hold the tap perpendicular to the crank face during the first turn; the rest of the cut follows the established line, but the first turn sets the geometry.\u003c\/p\u003e\n\u003cp\u003eAfter the new thread is cut, install the \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-left-58x24\"\u003eLeft Pedal Thread Insert\u003c\/a\u003e with a strong thread locker. The insert's outer thread engages the freshly cut thread in the crank; the insert's inner thread is standard 9\/16\" × 20 TPI (left-handed) ready to accept any standard pedal.\u003c\/p\u003e\n\u003ch2\u003eWhat this is NOT\u003c\/h2\u003e\n\u003cp\u003eThe reaming tap is for stripped threads that need a new thread pattern cut. It is not the right tool for cleaning up existing threads; that's the \u003ca href=\"\/en-ca\/products\/pedal-taps-916-x-20-tpi\"\u003ePedal Tap Set 1695.1\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLeft-hand reaming and thread-cutting tap\u003c\/li\u003e\n\u003cli\u003eCuts a left-hand 5\/8\" × 24 TPI oversize seat thread; the finished insert restores the standard 9\/16\" × 20 pedal thread\u003c\/li\u003e\n\u003cli\u003eSquare-shank engagement, compatible with \u003ca href=\"\/en-ca\/products\/handle-for-pedal-taps\"\u003e1695\/4BI Handle for Pedal Taps\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePair with \u003ca href=\"\/en-ca\/products\/pedal-thread-inserts-10-pieces-set-left-58x24\"\u003eLeft Pedal Thread Insert 1695.4A\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eArticle number: 1695.1AL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuilt in Zreče, Slovenia\u003c\/h2\u003e\n\u003cp\u003eUnior has been forging hand tools in Zreče since 1919, and sponsors professional road and mountain-bike race teams. The 1695 reaming-tap and thread-insert system was developed by Unior specifically for the cycling repair trade; most thread-rescue inserts on the market are general-machinery Heli-Coils that don't fit pedal-thread geometry. The 1695-series inserts are sized for the pedal thread, which makes the rescue cleaner and more durable.\u003c\/p\u003e\n\u003ch2\u003ePro tip from our mechanics\u003c\/h2\u003e\n\u003cp\u003ePedal-thread rescue is the kind of repair that wins customer loyalty. The customer expects to replace the crank; the shop that saves it instead is the one they remember. Our workshop hand tools guide walks through the complete pedal-thread workflow and the rest of the workshop tool layer: Workshop hand tools every bike shop needs →\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is there a separate tap for the left crank arm?\u003c\/strong\u003e Left pedals sit on a reverse (left-hand) thread that tightens counterclockwise, so a tap's cutting geometry has to be handed. The 1695.1AL reams and cuts left-hand threads only; the drive-side arm takes the 1695.1AR. Neither tap can stand in for the other, and a shop rescuing both arms needs the pair.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich direction do I turn the 1695.1AL to cut?\u003c\/strong\u003e Counterclockwise, following the left-hand thread it cuts. Start with the reaming section square to the crank face; the angle of the first turn is the angle the finished thread follows. From there keep steady pressure, use cutting fluid on aluminum, and back the tap off a part-turn now and then to break chips.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat else do I need to complete a left pedal thread repair?\u003c\/strong\u003e Three things finish the job: the 1695\/4BI tap handle, which drives the tap's square shank; a 1695.4A left thread insert, which screws into the freshly cut 5\/8\" × 24 seat; and thread locker to fix that insert in the arm. Once the insert is set, the arm accepts any standard 9\/16\" × 20 left pedal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the tap restore the original 9\/16\" thread without an insert?\u003c\/strong\u003e No. The stripped metal is gone, so the 1695.1AL deliberately cuts an oversize 5\/8\" × 24 seat rather than re-cutting the 9\/16\" × 20 standard. It is the 1695.4A insert threaded into that seat that carries the new pedal thread, which is why inserts belong in the same order as the tap.\u003c\/p\u003e","brand":"Unior","offers":[{"title":"Default Title","offer_id":35720701345945,"sku":"616554","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0464\/7708\/2777\/files\/1695.1al.jpg?v=1787170406"}],"url":"https:\/\/b2b.uniorusa.com\/en-ca\/collections\/thread-repair.oembed","provider":"Unior USA B2B","version":"1.0","type":"link"}