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
- Invest cast boss that sits super flush eliminating sharp edges
- The 24mm diameter spindle is stiffer and stronger but being hollow, does not add any extra weight to the cranks compared to 22mm versions
- Heat treated 4130 chromoly arms with a rectangular cross section for increased stiffness and grindability
- RHD / LHD Compatible
- Weight: 1.9lbs