Jeff Wills

Good info. If I can't turn up a local shop that will do the job (which would be strange for Portland) I might send them a crankarm. French cranks are made of brie...

CliffordK

Keep an eye open for single crank arms on E-Bay, although it can be harder to find current generation stuff than previous generation stuff.

Cranksets without the spider?

kennyc23

The threads stripped pretty bad. Chances are not have enough metal for a bigger insert. Even if someone will do the repair that will lessen the strength of the crank. I think the best bet is to shop for new crank..ouch

Moe Zhoost

This may provide some insight:

3alarmer 

...it's not an exceptionally difficult repair to perform. I do my own, because I bought the stuff when I was seeing a lot of otherwise perfectly good classic cranks get tossed out at the co-op here. Then I convinced them to buy the stuff at the coo-op, where we started (and by we I mean mostly me) doing it as a service to members for the cost of the inserts (not cheap...those threadsert thingies cost like six or eight bucks each one.)

Anyway, all this is by way of saying that if you run into it on a regular basis, it's probably not out of the question to buy yourself a kit.


You do need to remove the crank arm and do it in a vise, with a way to check that you're getting it started off at 90*. I usually just use a carpenter's square. *

For a while, there was even some company making and marketing a helicoil kit, with both LH and RH helicoils. Which is probably a stronger repair, but I've never had one of those sheet metal threadserts fail in use, so it probably does not matter. Don't know if they are still for sale somewhere.

To the OP, this repair doesn't remove a whole lot of material, and if your crank is that expensive, it's worth doing it. Those online guys mention they do SRAM cranks, so I'm guessing they wouldn't if there was much chance of failure.

*it's easier to do the drive side arm from the back, so you can clamp it in the vise with the spider and chainwheels up, not down.

aggiegrads

The Community Cycling Center has pedal taps.

Jeff Wills

I'll be visiting Sellwood Cycle Repair tomorrow. Matt says they have the taps and helicoils but he wants to see the crankarm first. This gives me a little confidence that they'll say "no" if they think it won't work.