Crank Arm Length: 170mm. Crank Arm Length: 170mm, Crank weight: 550g, Crank related holes distance: 74mm. Material: Aluminium alloy. Crank:104 BCD ultralight mountain bike crank, only can be used on Single speed chainring.
Pedal Category : Ultralight Pedal. Pedal Device Category : Bearing. And to ensure that your shoes always have incredible grip, there are 10 pins on each side of the platform to maximize traction. The oversized platform provides extra grip and more comfort.
New pedals maybe tight,not very smooth. One pedal have 3 Sealed bearings. CNC cutting platform, very strong. 6 Sealed bearings in one pair. Quantity : 1 pair. Cr-Mo Steel(axle). Item #: SMS-4.3. Material : Aluminuim alloy(Platform).