0
votes
1answer
264 views

Can I change chainring size on a dirt jump bike?

I don't know the name of it but there is a part on single speed bikes. The gear? I think right where the crank is connected. Well on bmx bikes and especially dirt jumping bikes it is really small and ...
2
votes
1answer
331 views

How to get a replacement crankset gear for Dahon P8?

How can I get a replacement crankset gear for Dahon P8? It is a 52 T with 5 screws. I searched shops here in Belgium, but they have only an expensive whole assembly.
3
votes
1answer
670 views

What does double and triple gear shifters mean?

I am looking at these components and am wondering what does double and triple gear shifting mean? Shimano R221 Double Gear Shifters 8 Speed ...