The bike comes from the brand ‘nine’ and is relatively old. I’m unsure of the type of fitting it has. It tightens on with an Allen key but it keeps slipping off after I only go about 100 meters. Crank is ~21.5cm long. Thanks!
by Cthper
The bike comes from the brand ‘nine’ and is relatively old. I’m unsure of the type of fitting it has. It tightens on with an Allen key but it keeps slipping off after I only go about 100 meters. Crank is ~21.5cm long. Thanks!
by Cthper
3 Comments
if you’re replacing it it looks like a pretty standard Shimano Deore crank. Length should be noted somewhere, just get the same lenght from Shimano Deore and it should be alright, though it might be hard to find a single crank so you might have to get a set of both left and right (if you’re lucky there’s someone with the opposite problem so you can just get their leftover)
Have a look on YouTube for a tutorial on how to fit Shimano cranks.
So thats a shimano crank, and the silver bit going through the frame is called the spindle. The flower shaped hole on the crank arm is a plastic piece that tightens the crank by grabbing those threads inside the spindle. Then you tighten the allen key. The tool you need for the flower shaped hole is probably about $12 at your local bike store. Its likely that the plastic piece will need replacing as well. A dot of blue thread locker on each of the allen bolts will do you good as well. If you live near a big enough city there may be a bike kitchen where you can borrow tools or maybe root around in a box of used cranks and find a replacement set. From what I can tell though it should be fixable.