CJ Ackley Machine Company Crank Arm Shorteners Pair

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.
• Sold as a pair - left and right side.
• Comes complete with a 6mm allen wrench and a tube of Loctite 242 to install the shorteners on your crank arms.
• Pedal wrench not included.
• 210 lb weight limit on upright bikes.  Do not stand on pedals continuously.