The crank arms are completely hollow with all unnecessary material being removed from the centre core - no internal aluminum spine.
Industry standard 30mm spindle with Cinch spline interface. The spindle is CNC machined from a newly commercialized aluminum 'super alloy' that is 20% stronger than 7050 alloy (the alloy commonly used in this application).
Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments.
The interchangeable spindle option of the Cinch system allows you to use the same crankset with 68/73mm and 83mm frames.
BMX Race Option: Custom BMX specific spindle and spider (104 BCD) Chainline - 47mm Weight - 620 grams w/BB (No Ring)