I’ve got an old fork which ended up with a stripped post mount thread due to my own ham-fistedness. It’s otherwise for the bin so I thought I’d try a helicoil repair first. Anyone done it? Success or messy death?
Yes on some Rebas - been faultless for over two years
Yep, worked fine. Now I always use brake mounts with separate brake mount and caliper bolts, the brake mount only needs doing up once so chance of stripping the forks threads is minimal.
Yep, worked fine. Now I always use brake mounts with separate brake mount and caliper bolts, the brake mount only needs doing up once so chance of stripping the forks threads is minimal.
Second this, avoid those long bolts
Aren't longer bolts better - more thread engagement?
Aren't longer bolts better - more thread engagement?
Yes, until you strip them.
It the OP's fork isn't stripped all the way to the bottom of the hole, it might be possible to screw a stud into the good thread at the bottom of the hole and then use a nut to hold the caliper on.
Helicoil is a better permanent solution though.
Aren't longer bolts better - more thread engagement?
Not when those extra length of threads are not threaded into anything.
When they say avoid long bolts they're referring to the type of mount that bolts straight through from the caliper through to the fork with two long fastners.
The other type of mount uses two pairs of screws, one pair attaches the mount to the fork and the other pair mounts the caliper to the mount. You still want to size these for good thread engagement but each is going to be shorter than a fastner that needs to extend all the way through the caliper, mount and into the fork.
yep, technically stronger than original if done properly
Thanks all. Successfully installed 🙂