JT! Posted October 22, 2011 Report Share Posted October 22, 2011 Can't figure this one out. 3 rings up front, and the chain won't drop down onto the bottom one, it just slips in between the bottom and middle cog. I've adjusted the screws but it's maxed out (unscrewed all the way out) and there's no tension on the cable when it's at it's bottom most. Any ideas? Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 22, 2011 Report Share Posted October 22, 2011 Get a longer BB. Quote Link to comment Share on other sites More sharing options...
JT! Posted October 22, 2011 Author Report Share Posted October 22, 2011 Looks pretty much like the original BB, so I don't think that would solve anything, plus they're 1 piece cranks. Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 22, 2011 Report Share Posted October 22, 2011 Did it ever work properly? Is everything in decent nick, not seized at all? Quote Link to comment Share on other sites More sharing options...
JT! Posted October 22, 2011 Author Report Share Posted October 22, 2011 Just bought it for $20, it just needed a good tuning up and it's pretty ok. The changer up front seems to be moving fine, even better since I sprayed it with oil. Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 22, 2011 Report Share Posted October 22, 2011 I prescribe a longer BB, still. If it's not resting on the screw then it probably never worked. Quote Link to comment Share on other sites More sharing options...
JT! Posted October 22, 2011 Author Report Share Posted October 22, 2011 I don't get how a longer BB is going to help when then cranks are one piece. A new BB isn't going to change anything. Quote Link to comment Share on other sites More sharing options...
Revolver Posted October 22, 2011 Report Share Posted October 22, 2011 (edited) I'm tired, I overlooked that It still doesn't mean it ever worked on all three speeds at the front. Can you pull the cranks towards one side? Edit: Put it this way, the mech is stopping on something - it's either the screw (but you've wound that out), the hole the screw screws through or some other kind of stop. If it's either of those, then it's been made so that it won't go further than that, so unless you bend that stop, it's not going to go past it. If the one-piece crank can be fiddled with so that it sticks more out of one side than the other, then that'll be the same as a longer BB. Edited October 22, 2011 by Revolver Quote Link to comment Share on other sites More sharing options...
JT! Posted October 22, 2011 Author Report Share Posted October 22, 2011 It is a tiny bit loose but not enough to make a difference. Would the angel the the mech make a difference, and the height? Possibly would a new chain help? Quote Link to comment Share on other sites More sharing options...
monkeyseemonkeydo Posted October 23, 2011 Report Share Posted October 23, 2011 Does it matter? Save some weight and remove the inner ring. Job done Is the mech cage bent? Or can it be 'tweaked to allow it to push the chain over a little more to achieve the movement required? Original (compatible) shifter? Meh, for $20 you should be happy that anything works at all! Quote Link to comment Share on other sites More sharing options...
JT! Posted October 28, 2011 Author Report Share Posted October 28, 2011 (edited) It's for the mother in law who's morbidly obese so she needs the lowest ring, and possibly the lowest ring only so it's not that big of a deal that it can't changed back down because it won't be needed to be changed up, but i think it's worked its self lose now and seems to change between the two ok-ish. Edited October 28, 2011 by JT! Quote Link to comment Share on other sites More sharing options...
Muel Posted November 21, 2011 Report Share Posted November 21, 2011 Spring in the front mech not strong enough to pull the cage down? Seen it many times. New front mech should sort it. If she's morbidly obese, all the more reason to remove the inner ring? In fact why not just make it singlespeed, 42:11? Quote Link to comment Share on other sites More sharing options...
Jake. Posted November 25, 2011 Report Share Posted November 25, 2011 Spring in the front mech not strong enough to pull the cage down? Seen it many times. New front mech should sort it. If she's morbidly obese, all the more reason to remove the inner ring? In fact why not just make it singlespeed, 42:11? She wouldn't even get on it with that gear ratio. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.