Skip to content

CJ Ackley Machine Company Crank Arm Shorteners Individual

SKU 210000008217

Reduce knee strain and increase cadence. Bolts into crankarm and pinches arm with adjustable cams.

Product Notes:

  • Shortens crankarms by 24, 41, 58 and 75mm.
  • Adjustable cams to fit a variety of crankarm widths from 23 to 42mm.
  • Compatible with 9/16" pedal threads.
  • Pedal wrench not included.
  • This listing is for individual shorteners, the pair can be found here.
  • Requires a 6mm allen wrench and a tube of Loctite 242 to install the shorteners on your crank arms.  These items are included.