Racing Bike Chainwheel Sets170mm Road Bicycle Cranksets 9S 10S 11S 34/50T 39/54T

  
Name: 12 Speed Road Bike Bicycle Chainwheel Cranksets. Material: Aluminium Alloy + Cr-Mo Axle. Weight: 518g excluding BB sets.

BB Type: M68 thread in for 68-73mm. Procedure: CNC Machining, Positive&Negative Teeth. 1 Set Intergrated Bicycle Bike Cranksets.