The DUAL SIDED  bolted-on alloy chaining guard helps keep your pants free of dirt and grease. Full

crankset with both arms and crank bolts, made by Prowheel.  Clean parts no logos. Aluminum crank

arms, and guards to keep it light weight. Steel chainring

bolts for durability. 3/32" chain recommended. 9/16" Pedal.

Recommended bottom bracket length: 118mm  See below for specs.

Crank Arm BCD: 130mm

Pedal: 9/16"

B.B. Recommended Size: 118mm (can vary dependent on frame) 

B.B. Spindle Style: Square Tapered

Chain Compatibility: 3/32" or 1/8"

Chainring Size: 42T

Arm Length:  175mm