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SUBSTANCE XL CRANK
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...
The Substance XL crank features heat treated 4130 chromoly arms with a rectangular cross section for increased stiffness and grindability.
Oversized Hollow Spindle
The 24mm diameter spindle is stiffer and stronger but being hollow, does not add any extra weight to the cranks.
Flush Boss Design
The new flush boss design eliminates sharp edges around the ankles.