How To Repair Stripped Crank Arm Pedal Threads 

You're welcome!

You could go one and a half to two turns forward no worries than back a quarter with it being such a soft metal , but it was painful to watch as he demonstrated how you should probably not do it , I would be taking extra care given it’s already been stripped out once .

He was pretty clear about how you Should do it lol. He Saud his method wasn't ideal.

You are welcome!

Does that work 🤔

How can we get it out?

​@@DeltoidM.N.C.R.F.T you dont get it out its fixed i stays there

No. The common thread size is 9/16". The threaded repair insert is 5/8" on the outside diameter, so in other words, the damaged crank arm is bored and re-tapped from 9/16" to 5/8", but the threaded insert is 9/16" on the inside, the same as your original crank before and the pedal. The left side has backward threads, so you just have to make sure you're using the correct insert and tap for the crank arm.

I apply Loctite in between the insert and crank arm. The pedal threads are always grease only . At our shop, the fee is $25 for this thread repair. Not really worth it if it's an inexpensive non drive side crank, but it's pretty cost effective for most drive side crank arms. The reason pedals strip out of crank arm in the first place is not over tightening, but under tightening. I think I did 4 of these repairs last week. A couple were from a competitor shop. We're pretty much in the middle of a bike boom and shops are assembling/selling bikes trying to keep up with demand, and that's when quality control suffers. Gotta get those pedals TIGHT when assembling a new bike!

You are welcome

We charge $25

I like the one wheels MFG makes otherwise a 10 x 1 metric helicoil works well.

I used Loctite on the threaded repair insert, the threaded pedal spindle always gets grease. Pretty much any grease, (bicycle specific is good but not mandatory) will work for bicycle assembly. (threaded fasteners, seat posts, etc.)

Glad to help

I did a search on some of the individual pieces and tools. It's looking pretty slim right now. I'm not sure if it's certain bike tools or all of the bike industry in general. I can say for sure as someone who has worked in the bike industry for almost 40 years, I've never experienced some of the shortages being experienced with bikes, parts, tools Etc. currently. I think your best bet in the next few months would be to find a shop that does the repair I demonstrated in this video.

Don't know why they make videos and not reply to viewers.

helicoil

Halfords don’t do pedal threads they’ll want you to replace the whole crank arm

Yes same happened to me . Went to Halfords and asked some other shops . They do not do it . Did you have any luck in the end ?

@@yl8908 what I ended up doing was ordering part on eBay for £70 then they fitted it for £20 because I didn’t have right tools

@@srettubyaj8441 thank you for your reply .

Same thing happened to me except my idiot roommate decided he was going to put the pedal on for me and didn't know that it was a reversed thread. Now I got a $600 bike just sitting here because I don't know how to fix it

Pedals use a 9/16" tap size amzn.to/2x9C2gB In this particular video, I'm repairing a crank that the original 9/16" crank arm threads have been damaged to the point that a 9/16 pedal just falls out. 10mm thread size on a bike is typically the size your rear derailleur bolts into the derailleur hanger. That tap size is a 10 x 1 amzn.to/2UY1GxW Shimano pedals are 9/16"

@@JoeyMesa Thank you In the UK they use metric sizes and as the pedals are 9/16 this equates to M14 (so they say) However is gets more confusing as here they also require TPI (turns per inch) which I think is 2 . As I require a helicoil I think I need is M14x2 but honestly I am still not sure. Helicoil are hard to come by here and I had the same issue as yours where the 9/16 pedal will just fall out. I have found one on Amazon one (see link below) again not sure if this is what I require and my crank is only sale in Japan.. www.amazon.com/M14-2-00-Helicoil-Repair-Kit/dp/B008VVUOA6 Could you please point me to a link where I can purchase the right one eBay or Amazon UK. Sorry I have called a few bike shops but it seems they will not tell me! Buggers! With COVID I need my bike more than ever now. your help is greatly appreciated

This is the kit I used in the video. amzn.to/2XqvPrh It's not really cost effective as depending on your crankset, you can more than likely purchase new cranks for less. It also depends on which side (left or right) crank arm is damaged. I'm not sure if Helicoil makes a reverse thread kit as the left side crank threads are reverse. VAR also makes a kit it's a PE-04700 Looks like it's available in the UK, again pretty expensive, but I saw ads on eBay just doing a quick search for individual reamer/taps and the threaded inserts separately.

Most of the time, the damage is caused by the pedal not being properly torqued into the crank arm.

It's not cheap, but this is the shop kit: amzn.to/3aDhNq2

Let’s see your video. Our shop charges $25 for this repair. Show me how your repair is better and $5 less expensive.

@@JoeyMesa soon.. but we really did have hard time with this issue and YT search didn't help, soon.

We charge $25 to do this at the shop. A new drive side crank arm can cost much, much more than that...

Helicoils are not cheap maybe find another bike take arm off it

@@danferguson9333 I bought two arms on Amazon at a fraction than to buy helicoil and tools for one time use only.