Stripped Crank Thread - Not Pedal Thread 🙁

[legrandefromage]

...or just do what I did

'Cos I'm grrrrreat!

 

[paton]

VAR PE 11000

Thread 'How to: Repair stripped puller threads on cranks'

Jul 12, 2021

Wasn’t expecting to post about this but turned out better than expected so thought I’d share.

In a nutshell, have a set of Suntour XC Pro cranks that came on the 1991 Zaskar I’ve owned since new. The centre “crank pull” threads finally gave way many years back. Also, one of the granny ring threads had stripped. All in all, bit of a sorry state. Looked online, way too much money to replace and all other crank repairs were about the pedal threads. So decided to see if I could rescue it myself.

Here’s the process…
1) Clean out the threads thoroughly. I used kitchen roll / cotton buds and...

• dinozoiks
• Replies: 24
• Forum: Retro MTB Chat

• 
• 

 

[Mr Weirdo]

Don't beat yourself up, I've done this (more than once).

Thank you for your kind words...it's just I try to be so careful. Have a good weekend

 

[Mr Weirdo]

View attachment 1014360

Oh wow! I thought at first it was a bought bicycle shop puller but I now realise that it's one you've made yourself. Well done

 

[Mr Weirdo]

This is all a lot of ballache to desperately try and keep a damaged arm in service, that at the end of the day is still damaged.

Why not spend comparable money (£30-40), and a whole heap less time, and just buy a replacement arm.
https://www.ebay.co.uk/sch/i.html?_...dkw=damaged+cranks+exractor+tapered&_osacat=0

Use the other one as a door handle or something if you have a romantic attachment to it.

Hi I understand where your coming from and think the same sometimes. The problem I have is that it 1st generation Dura Ace and therefore by some people considered vintage. Unfortunately vintage comes at a price these days and I thought it would be nice to keep it as original as possible. The bicycle that is.

 

[Mr Weirdo]

Cyclus 720264
Cyclus Tools Crank Puller and Repair Kit | Chicken Cyclekit https://share.google/4W9TkWunIfPpLNiN6

Or cheaper to buy a new bike.

I'm too tight and I love my current bicycle Thanks for the link...

 

[Mr Weirdo]

...or just do what I did

'Cos I'm grrrrreat!

Tony the Tiger won't be happy

 

[Mr Weirdo]

VAR PE 11000

Thread 'How to: Repair stripped puller threads on cranks'

Jul 12, 2021

Wasn’t expecting to post about this but turned out better than expected so thought I’d share.

In a nutshell, have a set of Suntour XC Pro cranks that came on the 1991 Zaskar I’ve owned since new. The centre “crank pull” threads finally gave way many years back. Also, one of the granny ring threads had stripped. All in all, bit of a sorry state. Looked online, way too much money to replace and all other crank repairs were about the pedal threads. So decided to see if I could rescue it myself.

Here’s the process…
1) Clean out the threads thoroughly. I used kitchen roll / cotton buds and...

• dinozoiks
• Replies: 24
• Forum: Retro MTB Chat

• 
• 

Had the same problem when searching the intranet. It was all about stripped pedal threads. Thanks for the detailed info...will have a deeper read later as a lot to digest and give feedback

 

[Tootyred]

Even if you do just replace it....you still need to get it off!

 

[2manyoranges]

Dang

Indeed I think most of us have done it

The nicest repair is to helicoil

BUT

will cost 35-50 at a machine shop
although check first since it is a blind hole which makes things a little more complex

on replacement crank
I have just looked at secondhand prices
ouch