Help removing chainrings

mr.b-campag

Hi,

Went to replace the chainrings on my chainset and one of the bolts is rounded down so the allen key doesn't work (I must have done that at some point!). Any ideas how to get it out? On the side closest to the frame there are a couple of slots that look like they might take a screwdriver. I guess I could wedge something in the allen key slide and they use a screwdriver the other side. Would that work? Any idea how big the screwdriver would need to be? Or is there some other way to do this?

Thanks

B

geoffh73

Use a Dremel to cut a slot in it, Then use a flat bladed screwdriver instead of allen key.

Geoff

mr.b-campag

Thanks. Not much in the way of workshop facilities in my one bed flat unfortunately...Any other ideas (besides lbs)?

cycleclinic

buy the tools you need to do the job or take it to your LBS.

sandyballs

I see the forum is being as helpful as ever these days. :roll:

Correct tool for the slots on the rear:
http://www.wiggle.co.uk/lifeline-chainring-peg-spanner/?lang=en&curr=GBP&dest=1&sku=5360772964&kpid=5360772964&utm_source=google&utm_term&utm_campaign=UK_PLA_Accessories&utm_medium=base&utm_content=mkwid%7CsqHxT97ZV_dt%7Cpcrid%7C67090840622%7Cpkw%7C%7Cpmt%7C%7Cprd%7C5360772964uk

After you have that I would hammer in the next biggest torqs bit into the rounded Allan bolt and hope it holds, if that doesn't I don't think anything in a one bed flat will help but I am only assuming, I am not a stalker. :shock:

mr.b-campag

Thanks Sb that looks like what I'm after. 8) Thanks also for letting me know ur not a stalker!

fudgey

Drill the head off, its knackered.

keef66

It would all be a lot easier if you could take the chainset off the bike first and clamp it in a vice or workmate.

As above; you'll be needing a new chainring bolt anyway, so buy some replacements first, then hammer in a larger Torx bit or drill it out.

I put a bit of copperslip on my chainring bolts when reassembling...

fenix

To be fair - if you can fit your bike in - you can easily fit a dremel in the room...

mr.b-campag

Thanks everyone for their comments, flippant or otherwise!