Our toughest crank yet - Substance XL, a single bolt design 2.5pc crank with hefty 24mm XL spindle and an all new flush boss design eliminating sharp edges around the ankles.

Now in new Flat Raw and Flat Black...

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Material Heat treated 4130 chromo
Length 165mm / 170mm / 175mm
Spindle diameter 24mm
Weight 1.90lbs

Design Features

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