- PowerSpline (PS): heat treated CrMo spline-taper spindle with M8 (crank mount) thread bore and CNC machined alloy cups/spacer-shell: (325g)
- Sealed cartridge bearings with single-insert stop (chainline control)
- English (1.37"x24tpi - LH/RH) threads fit 68mm; or 68mm E-type, and 73mm shell widths (no 73mm E-type)
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