SKU: 31243946418
bike pedal thread repair

bike pedal thread repair Unior Crank Saver Kit

Sale price$21.61 Regular price$24.01
Save 10%

Pay in installments of $6.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 8 - Sep 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

bike pedal thread repair Unior Crank Saver KitA 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. The Crank Saver Kit is the workshop intervention that turns that failure

A 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.

The 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 new threads in the reamed bore with a chase tap, and presses in a steel thread insert sized to 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.

What's in the kit

  • Reaming pedal taps 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.
  • Tap handle with the right interface for the reaming taps.
  • Steel pedal-thread inserts (10-piece set) sized to 9/16″ × 20 TPI on the inside, with the larger thread on the outside that mates with the reamed bore.
  • Steel storage case 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.

How the repair works

When 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.

The 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 presses into the reamed bore (its outer threads grip the arm material; its inner threads are factory-cut to the standard 9/16″ × 20 TPI pedal spec). Once seated, the insert is mechanically fastened to the arm and won't back out under pedal-install or pedal-use torque.

A 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.

Compatibility

  • Aluminium crank arms with stripped 9/16″ × 20 TPI pedal threads (the standard pedal thread for adult bicycles)
  • Both left (LH) and right (RH) sides; the kit includes taps for each direction.
  • Not for carbon-fibre crank arms (the reaming step requires aluminium substrate; pedal-thread failures on carbon arms typically require manufacturer-warranty service or arm replacement).

Built in Zreče

Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill 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.

Pro tip from our mechanics

Most 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.

For the broader crank-tools decision tree (puller selection, cap-tool gotchas, and when a crank is past saving): How to remove a crankset →.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31243946418

Discover Niche Categories That Outsell bike pedal thread repair

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 15 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Camryn
Houston, US
★★★★★ 5
Great Chair! Worth the Price!
Color: Sky Blue, Size: Pack of 1
LOVE my new desk chair! I got the Sky Blue which is a really pretty blue in person. I work from home in tech, and had been getting constant headaches no matter what position I was in. I finally decided to invest in a better desk chair, and I'm SO glad I did! It's much more supportive and comfortable. I really like that I can flip the arms up or down, and the height is easy to adjust. Also, because I can flip the arms up, I can keep the chair out of the way when I'm not working by putting it right up against the desk. Very much worth the price! Assembly was simply and quick. Not even 30 minutes. Also, when I had a question about the chair, their support team was quick to respond and very helpful. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
D
Verified Purchase
David Miller
New York, US
★★★★★ 5
Great quality chair, regardless of price.
Color: Black+white, Size: Pack of 1, Color: Black+white, Size: Pack of 1
Great quality chair, regardless of the price, period. So well packaged that it took almost as long to unwrap as assemble. Assembly was easy (loved the Allen wrench with sturdy handle). I am 6'2" and the fit and height adjustments work well for my height. Comfort is personal, so I like the semi-firmness of the seat. While the chair is constructed of heavy gauge plastic the base is solid metal with enamel finish: I love the look. The arm rests line up perfectly to my computer keyboard. I expect many, many years of service.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
E
Verified Purchase
EJ
Dallas, US
★★★★★ 5
Great Value for a Comfortable Home Office Chair
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I’ve been using this chair for a couple of days now, and honestly, it’s been a solid upgrade from my old one. I work from home most days, so comfort matters a lot—and this chair delivers better than I expected for the price. The first thing I noticed was the lumbar support. It’s actually adjustable and makes a noticeable difference, especially if you tend to sit for long stretches. My lower back used to get sore after a few hours, but that hasn’t really been an issue since switching to this chair. The mesh back is also a nice touch—it keeps things breathable, which I didn’t think I’d care about until I had it. Assembly was pretty straightforward. Took me maybe 20–25 minutes without any frustration. Everything lined up well, and the instructions were clear enough. In terms of comfort, the seat is firm but not hard. It doesn’t feel like one of those super plush chairs, but I actually prefer that because it feels more supportive over time. The reclining feature is smooth, and I like that you can lean back a bit when you need a break. Overall, I’d say this is a great value for a home office setup. If you want something ergonomic and comfortable without spending a fortune, this chair is definitely worth considering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Excellent Office Chair
Color: Black+white, Size: Pack of 1
I just received my TRALT Office Chair. First of all, I was impressed with the packaging of this item. When I opened the box each piece of the chair was wrapped in plastic or bubble wrap. Everything in the box arrived safely and without damage. Secondly, the instructions to assemble the chair were very each to follow. I was impressed with the Allen wrench which had a handle attached to it. This made screwing in the screws very easy. I was able to assemble the chair without any difficulty. Lastly, the look of the chair and the comfort is exceptional. I ordered the black/white chair which looks amazing. The comfort of the chair is really excellent. My back is supported by the lumbar seat and having the armrests being able to go up when not needed is wonderful. The quality of the chair is definitely worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
J
Verified Purchase
Jennifer3002
Boise, US
★★★★★ 4
a good choice
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
Assembled chair only to find that the lift cylinder was faulty. Would have preferred to be able to just get a replacement cylinder but calling China didn't seem like a viable option. Guessing which one & buying it online would involve paying for a good portion of what the chair cost. Customer service could only offer a replacement or refund. We're disassembling (so much fun?!) to send it back. The chair itself was very comfortable, assembled fairly easily and instructions pretty clear. Again, if we could only have asked the seller for the replacement part......**Update**...Or if the instructions that seemed so clear were clearer!, as we started to disassemble, we decided to see what would happen if the tension knob (see photo) was loosened. IT ALLOWED THE LIFT CYLINDER TO WORK. Not at all what the instructions say. At any rate, we're keeping the chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026

recommand products