hi i had my fixed gear over 4 to 6 months now,one day i took it to a shop to get my wheel fixed and after a few miles on it i started to notice that its getting harder to pedal. at somepoint i couldnt anymore... seem like the chainset or the bigdisk thing that holds the chain is hitting the chainstay( sorry a noob when it comes to bikes ). seem like the old man at the shop screwed me pretty good...i ol'most got in a accident when the bike locked and i couldnt pedal any more...








so if anyone can help me please do...if u'd like ill post some pics

pictures always help in these situations or take it back to the shop and tell them they messed up. probably easiest solution.

Sounds like you needed your wheel trued and you / the monkey didn't tighten your bolts down all the way in back. Once you started mashing, likely the drive side nut slipped forward causing your wheel to rub against the frame. If I interpreted that correctly.

Learn how to tension your own chain. This could work out to your benefit.

From sheldonbrown.com/fixed:


"Start by installing the wheel at approximately the correct position and tightening the axle nuts. They don't need to be super tight at this stage, but should more than finger tight. Check the chain tension and wheel alignment.
Most likely, the chain will be a bit loose, but perhaps the wheel is correctly aligned. Loosen one of the axle nuts and push the tire to the side so that the loose side of the axle moves to the rear, then tighten the axle nut you loosened.
Now the chain tension should be better, but the wheel is no longer centered between the chainstays. Loosen the other axle nut and re-center the wheel in the frame. This will actually tighten the chain a little bit more.
The key is to keep one or the other of the axle nuts tight at all times, and "walk" the wheel forward and back.
This takes a bit of practice and getting used to how much axle movement is needed to adjust a given amount of chain droop, but it isn't really hard as long as you keep one side secured at all times. Note, this technique doesn't work with a quick release hub, but those are generally easier anyway."

Works like a charm.

you pulled your wheel out pedaling, put it on with some umpf next time

sounds like he's talking about the chainring not the wheel, eh?

sorry for the long rep! i couldnt find it =]

ol i need is a BB tool and someone other tool i forgot =]

looking at those pics... how did you ride it anywhere like that?

Once on my old road bike I somehow managed to screw up the skewer on my quick release on my rear wheel. As I put tension on the chain, it would make the wheel start to shift diagonally, making the front of the tire rub on my left chainstay. Felt like riding an exercise bike. D:

Do you have a cartridge bottom bracket? Perhaps it has moved sideways in the frame so the chainring no longer has clearance. Let's see a picture of the left side of the bottom bracket.

i dont know if i have a cartridge bottom bracket but i have a pic

check all of the round things that spin and make sure they spin and make sure the chainy thing is on the round spinny things

prest o!