I stripped a Shimano crank pinch bolt.

[Dr Luxurious]

Yes, I'm a duma$$
In a hurry. Grabbed an old, worn allen and...

Tried jamming a torx in there, no luck. Tried JB Welding an allen to the bolt head, nope.

Next step is an EZ-out.
Anyone know what size I need? They're numbered 1-6 and I don't know which corresponds to that bolt. I'm trying to not buy a big set.

[Ken Robb]

How about taking it to a shop (bike or other) that has EZ outs and let them remove it for you? Several auto repair and motorcycle shops I knew had EZ Out sets.

[Peter P.]

The crankarm has two pinch bolts, right?

Tighten the good bolt to remove some pressure from the stripped bolt.

Then try another allen wrench, Torx driver, etc.

[Dr Luxurious]

Originally Posted by Peter P.

Tighten the good bolt to remove some pressure from the stripped bolt.

Then try another allen wrench, Torx driver, etc.

good idea but I already tried that. no go

I think I found it. looks like #2 spiral EZ-out with a 7/64 drill bit

[Tandem Rider]

I have a kit of reverse drill bits specifically for removing broken bolts, I think they were pretty inexpensive, the advantage is that unlike an EZ-out, they don't increase the diamater of the bolt when you use them.