Prowheel bicycle square hole crank sprocket 104BCD170mm 175mm crank 30T-42T round narrow width sprocket

Specification:

• Brand:Prowheel
• Material: aluminum alloy
• Specification: BCD 64mm/104mm
• Compatible: single, double
• Chainring Color: Black
• Crank：170mm/175mm
• Sprocket：30T/32T/34T/36T/38T/40T/42T
• Note: Equipped 64BCD screw
• The material of the 30T sprocket is 7075 aluminum.

Package Included:

• 1 Set Crank
• 1 x Sprocket
• 1 Set Mounting Screws