Note: We propose that the ground bracket is to start with installed by a motorbike shop to verify highest facing and Have compatibility. thanks. Crank Construction: 2 items solid crank Cassette compatability:8 speed; 9 speed Chainring numbers:42-32-22T Bolt Circle Diameter:104/64mm Color:Black Outer Chainring: Aluminum Middle Chainring: Steel Inner Chainring:Steel Crank Arm Length:170mm Bottom bracket: fits usual 68mm and 73mm shell.
Cassette compatability:8 speed; 9 speed
Chainring numbers:42T-32T-22T,Bolt Circle Diameter:104/64mm
Bottome bracket fits usual 68mm and 73mm shell
Have compatibility road bike and mountain bike
What you get: 1 X Crankset(3 chainings),1 X Bottom bracket,1 X Crankarm(170mm)