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I stripped the CRAP out of my Chain ring bolts....

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I stripped the CRAP out of my Chain ring bolts....

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Old 10-22-12, 09:46 PM
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bianchi10
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I stripped the CRAP out of my Chain ring bolts....

FSA SLK crankset. Swapping out stock for praxis works chainrings. front FSA bolts are a t30 and the rear is a 6mm. I got 3 of them out easily but 2 of them buggers are really stuck in there and now that I have stripped both the T30 AND the opposite 6mm, they are REALLY in there.

WTF do I do now?
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Old 10-22-12, 09:58 PM
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Originally Posted by bianchi10
FSA SLK crankset. Swapping out stock for praxis works chainrings. front FSA bolts are a t30 and the rear is a 6mm. I got 3 of them out easily but 2 of them buggers are really stuck in there and now that I have stripped both the T30 AND the opposite 6mm, they are REALLY in there.

WTF do I do now?
Drill them out?
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Old 10-22-12, 10:00 PM
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I assume you're talking about typical chainring nut and bolt pairs. If so the easiest way is to use a countersink (you need a power drill) from the back. As the countersink enters, it separates the back flange from the nut and the bolt pushes through.

Buy a new set of 5 and you'll be good to go. The nut should be dry where it meets the chainring (helps prevent spinning) and the screw greased.
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Old 10-23-12, 09:16 AM
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Originally Posted by FBinNY
If so the easiest way is to use a countersink (you need a power drill) from the back. As the countersink enters, it separates the back flange from the nut and the bolt pushes through.
I've used an ovesize standard drill bit to do the same thing. Use a bit large enough to overlap the original hole and drill just deep enough to separate the flange (or bolt head) from the nut (or bolt shank). I've never had to remove chainring bolts this way but I have safely removed clipless pedal cleats from shoes where the bolts' 4 mm recesses are too damaged to fit a hex key.
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