A new updated version of the Substance XL crank with a new invest cast boss design that sits fully flush with the crank arm completely eliminating sharp edges around the ankles.
BSD Mid 24mm bottom bracket included.
- 2.5pc crank.
- Simple single bolt design.
- Heat treated 4130 XL 24mm CNC machined hollow spindle
- RHD/LHD drive compatible
- Flush Boss Design:Â We've designed the Substance XL V2 crank arm with an invest cast boss that sits super flush eliminating sharp edges that can whack your ankles.
- Oversized Hollow Spindle: The 24mm diameter spindle is stiffer and stronger but being hollow, does not add any extra weight to the cranks compared to 22mm versions.
- Rectangular Arms: The Substance XL V2 crank features heat treated 4130 chromoly arms with a rectangular cross section for increased stiffness and grindability.