register Posted July 8, 2014 Report Share Posted July 8, 2014 Hey everyone, I was hoping I might be able to get some help / advice... Turns out my bike decided to combust today! My rear rim decided to bend after a few missed gap attempts, no massive deal... I'll replace the rim. Problem is, removing the wheel I discovered that my dropout (driveside) is bent from a missed sidehop attempt! So I have 2 questions: 1) how the hell do I remove the rear wheel when one of the dropouts is closing in on the axle? 2) Is there a way of bending the dropout back? Or is it terminal? Would appreciate any input! Apologies if this has come up before, tried searching, but couldn't find anything. Thanks Quote Link to comment Share on other sites More sharing options...
ericbenjaminjr Posted July 8, 2014 Report Share Posted July 8, 2014 Pics? Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 8, 2014 Report Share Posted July 8, 2014 (edited) Yeah pics Otherwise.. however you choose to bend it, but do it slowly, trying to apply pressure opposite way to the original impact zone. I've used an adjustable spanner to good effect Edited July 9, 2014 by *gentlydoesit Quote Link to comment Share on other sites More sharing options...
ItsMatt Posted July 8, 2014 Report Share Posted July 8, 2014 I had to bend a dropout on one of my bikes today. adjustable was Ideal for the task, same with bending out rims just do it slow and cover as much of the damaged area as you can. Quote Link to comment Share on other sites More sharing options...
register Posted July 9, 2014 Author Report Share Posted July 9, 2014 Hey guys, thanks for the help so far! The good news is the wheel finally came out with enough wiggling. As for the dropout, do you think this would bent back? If it doesn't bend back, would filing it down work? Please let me know your thoughts! Thanks Quote Link to comment Share on other sites More sharing options...
ItsMatt Posted July 9, 2014 Report Share Posted July 9, 2014 If your hub is female I would just take the axle bolt out, align the hub where it would normally sit and put the bolt back through. Given that you haven't f**ked the threads pulling it out. Looks like the bent bit is still parallel with the top half? (adjustable might not fit) I would give putting something like an allen key where the axle sits and try pulling or hitting it back through towards the rear. Just be really careful as metal doesn't like to bend one way and go back to its original place. Look out for cracking or splitting on the inward angle where the bend starts as you pull it out. 4 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 Love that post^ Quote Link to comment Share on other sites More sharing options...
Jake. Posted July 9, 2014 Report Share Posted July 9, 2014 Just file it, hacksaw it or angle grind it til it's parallel with the top one. Bending it would be more likely to cause it to crack or even snap and could take the entire bottom half of the dropouts and you don't want that... Quote Link to comment Share on other sites More sharing options...
ItsMatt Posted July 9, 2014 Report Share Posted July 9, 2014 Love that post^ Have I made an obvious mistake or is it actually a gr8 post m8 Quote Link to comment Share on other sites More sharing options...
ericbenjaminjr Posted July 9, 2014 Report Share Posted July 9, 2014 I'm not sure but would a mix of both solutions be best? Bend it back a bit and file the rest? And I imagine you'll have to push the wrench in the opposite direction, clockwise instead of counter. Pushing against the top of the dropout opening. You'd leave the wrench wide open of course. Does that make sense? Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 Have I made an obvious mistake or is it actually a gr8 post m8 Spanner of destiny genuinely liked 1 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 (edited) I'm not sure but would a mix of both solutions be best? Bend it back a bit and file the rest? And I imagine you'll have to push the wrench in the opposite direction, clockwise instead of counter. Pushing against the top of the dropout opening. You'd leave the wrench wide open of course. Does that make sense?Leverage as per the pic imo dude you'd only wanna grab the bent bit rather than put load across all of that section. Or the Jake safety route, or whatever works Edited July 9, 2014 by *gentlydoesit Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted July 9, 2014 Report Share Posted July 9, 2014 If you do attempt bending it use a bit of heat otherwise that's just gonna crack and snap off I'd say. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 Imo Heat won't do much until ~600°c when it becomes annealed.. and you don't want an annealed dropout Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted July 9, 2014 Report Share Posted July 9, 2014 Imo Heat won't do much until ~600°c when it becomes annealed.. and you don't want an annealed dropout Shows you how much I know about metallurgy! 3 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 Shows you how much I know about metallurgy! heat works on steels ok Quote Link to comment Share on other sites More sharing options...
register Posted July 9, 2014 Author Report Share Posted July 9, 2014 hey, cheers very much for the advice guys! Had a little pull with a pair of pliers earlier (adjustable didn't fit) but it didn't seem to want to budge at all! Might end up taking it to a local bike shop and see if they have any luck. Otherwise I might take the 'Jake-route' and file / grind it down until parallel, but my only worry with that would be that I might lose to much dropout! To work it down until parralel would make it into a sharp point, and there might not be enough material to hold the wheel in when further back in the dropout. Cheers for the advice guys, hopefully this is salvageable! Could do without buying a new frame! Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted July 9, 2014 Report Share Posted July 9, 2014 Having done this in the past, I'd say a bit of each is the way to go on that one. It will take a lot of force to bend it, you'll need a big adjustable (12" or so). Quote Link to comment Share on other sites More sharing options...
p_ruskin Posted July 9, 2014 Report Share Posted July 9, 2014 i would sand it out instead of trying to bend it back or anything similar, i did the same on my echo frame and the bottom of the dropout cracked open and was no longer usable Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted July 9, 2014 Report Share Posted July 9, 2014 If the adjustable is too big try a deep reach socket and extent ion bar Quote Link to comment Share on other sites More sharing options...
dann2707 Posted July 9, 2014 Report Share Posted July 9, 2014 I vote filing / sanding that bast back. Quote Link to comment Share on other sites More sharing options...
bing Posted July 9, 2014 Report Share Posted July 9, 2014 Get it warmed up and gently bend it back down Quote Link to comment Share on other sites More sharing options...
SamKidney Posted July 9, 2014 Report Share Posted July 9, 2014 I've used a grinder before when I did the same to my Ice frame. Better than bending it back, quicker than filing. If you're handy with a grinder it's hard to mess it up Quote Link to comment Share on other sites More sharing options...
Greetings Posted July 9, 2014 Report Share Posted July 9, 2014 (edited) DON'T bend it back to the original position. You'll crack the dropout at the bend if you apply force correctly, or at the tensioning screw if you apply it incorrectly. Like Adam pointed out, you might want to start by bending it back slightly. Then use an angle grinder if you're good with one or a file if you're not to bring the dropouts back to 10mm. Edited July 9, 2014 by Greetings Quote Link to comment Share on other sites More sharing options...
Paperclip Posted July 9, 2014 Report Share Posted July 9, 2014 File not to file bend it back not to bend it back I'd just try not land on my dropout that hard personally :kiss: Quote Link to comment Share on other sites More sharing options...
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