Alloy forged crank arm, BCD130 or 144mm.
Alloy CNC-machined chainring, Exceptional large teeth number.
From 56T to 68T.also can be design others teeth number for your need.
Color: balck or silver.(option: others colour)
Compatible BB-axle: Square or ISIS.
Single-Speed Alloy Crankset of Large teeth_RSC1-7122