Changed my tyres on the NC30 today and had lots of problems with the rear caliper and one of the fronts.
The blanking plug in the rear caliper sliding pin hole had seized and nothing would budge it, so i ended up drilling the silly thing out.
Then when fitting the front nearside caliper the thread in the lower mounting bolt hole decided it had had enough.

So what do you folks think would be the best course of action?
Should i tap the hole to M10 size (original is M8) and fit an M10 bolt, or the alternative which is to get another fork leg?
Problem is aggravated by the fact that i can't find my tap and die set anywhere.

Helicoil it.

thunderace wrote:Helicoil it.

Nevr used that method before.
Does that mean i have to tap the hole out bigger and then fit an insert?

The proper sized drill bit and tap come in the kit

I'm looking at the Helicoil website and i'm baffled....lol

I'm not sure what pitch the thread on the caliper bolts are.

Gadget wrote:I'm not sure what pitch the thread on the caliper bolts are.

Standard m8 pitch 1.25 off the top of my head.

porndoguk wrote:

Gadget wrote:I'm not sure what pitch the thread on the caliper bolts are.

Standard m8 pitch 1.25 off the top of my head.

Cheers for that
Found someone local to me who has a helicoil kit...so...happy days....hopefully.

For me, if I had an m10 thread cutter handy, I'd be tapping it bigger. But this will then no longer look original and you can't go back from it.

amorti wrote:For me, if I had an m10 thread cutter handy, I'd be tapping it bigger. But this will then no longer look original and you can't go back from it.

There isnt a lot of metal spare on them fork legs and with breaking forces id be reluctant to drill and tap at m10