Singlespeed & Fixed Gear - loose cranks?

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calbob76
09-23-10, 05:01 PM
i can feel it move when i trackstand, and i don't think it is my chain tension. and when i get down close and move the non driveside arm with my hand i can see it move just a little inside the bottom bracket. that is bad right? do i need to take it to my lbs and get it properly tighened?

Scrodzilla
09-23-10, 05:12 PM
that is bad right? do i need to take it to my lbs and get it properly tighened?

Yes and yes.
vw addict
09-23-10, 06:07 PM
sounds like you should have the BB and cranks tightened.

Kayce
09-23-10, 06:37 PM
More likely the square taper on the cranks has been rounded, making it move around on the bottom spindle, the other way around, or a combination of both. Depending on which it is you may need a new bottom bracket, cranks, or both.
dbwoi
09-24-10, 03:00 AM
Also, you can try undoing your lockring and screwing the floating cup in a TAD farther.
Higher Class
09-24-10, 10:25 AM
This probably isn't the case, but I know that when chainring bolts come loose it gives a feeling of a "loose crank." Just a thought.
ianjk
09-24-10, 01:34 PM
Stop riding and bring it to a pro. You may have already hosed one or more components.
calbob76
09-24-10, 03:30 PM
it was the loose bottom bracket as I though! Couldn't do it myself so I took it to the lbs and its allll gooood. new bike btw, i'll post pics