BSD Substance XL V2 cranks – 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.The arms are made of Heat treated 4130 chromoly with heat treatment and rectangular cross section for increased rigidity and ability to grind with the pedal. The shaft is heat treated 4130 chromoly 24mm diameter in CNC machine with 48mm Hollow axle. Substance is one of the ideal pedal boats for all types of riding and all styles!
