Need to sort out a stripped thread on a brake mount on some forks

Is it best to go with a proper Helicoil kit or are some of the cheaper ones just as good? Any recommendations?

I use the dormer M6 and M5 ones and work very well and probably stronger than the standard alloy thread and stainless so wont seize the bolt

I’ve just stripped the top 3-4 threads off mine by putting the short bolt in the long bolt hole.
Have threadlocked it in for now but would also be interested in a helicoil kit

You wouldn’t helicoil a 5/6 mm hole !,you’d go up a size just drill & tap the next size up ,5 to 6,6-8 etc ..

Any helicoils should be fine, as for drilling and tapping to the next size up that’s not possible on a fork mount because you would 1 seriously damage the integrity of your post mount and 2 an m8 bolt won’t go through your caliper.

reedspeed – Member

You wouldn’t helicoil a 5/6 mm hole !,you’d go up a size just drill & tap the next size up ,5 to 6,6-8 etc ..

Why not?
A lot less hassle than having to possibly remachine a counterbore to accept a larger cap head bolt.

I think Armstrong were my preferred supplier, having fitted many thousands of inserts of all sizes and types.

The whole idea of a helicoil is that is keeps the same size bolt as before.

I just bought a cheap kit from eBay. Worked great.

I bought an M5 set off ebay (silverline I think) to fix a set of crossmax wheels with stripped disc mount. I’ve since bought m4, m6 and m8 sets and repaired stems/seatposts, a few post mount forks and even a rear end on a stumpjumper fst for a load of mates

best purchases I’ve made in a while, £40 total spend and probably recovered £500-600 worth of components and still have most of the kits left.

Depends how confident & skilled you are,I know what i’d do !.

What would you do?

Time-sert inserts. Superior to the standard helicoil.

Ambrose – Member

What would you do?

Talk out of his arse, I’d wager. 🙂