BMX - chain tention help

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.



PDA

View Full Version : chain tention help

russiankdi
03-10-06, 07:31 PM
when i done my chain tention on my bmx, i got it to where it has little slack or play, which i heard is normal, but when i spin the pedals, i spin them non stop nad i can feel the chain get taught real tight(i have my fingers over it) then all the sudden it gets loose or back to normal, now this keeps repeating. Know i dont have this problem with my other bmx bike, so whats wrong?

CMcMahon
03-10-06, 07:50 PM
Common sense should tell you that your sprocket is either bent, or it's not aligned properly.
russiankdi
03-10-06, 07:58 PM
sprocket it straight, and not bent. But i will check the alignment

CMcMahon
03-10-06, 08:00 PM
Aside from the fact that sprockets are rarely perfectly true in the first place, it doesn't take a noticeable bend to put a tight spot in a chain.
wethepeople
03-10-06, 08:09 PM
Ovalized sprocket.
Brian
03-10-06, 08:20 PM
Sprocket not seated on cranks properly.
bmichaelx
03-10-06, 09:01 PM
Me use hammer to bend straight.

Then me make fire with skateboard.
Brian
03-10-06, 11:16 PM
I installed my sprocket incorrectly, and broke a chain racing. Things happen.
Prozakk
03-11-06, 10:11 PM
That's why I run a 3/16" street chain. Snapped too many normal sized chains when I was a fly weight.