CJ Ackley Machine Company Wide Silver Crank Arm Shorteners Individual
Reduce knee strain, hip strain and increase cadence with the CJ Ackley Crank Wide Arm Shorteners in silver for left or right side only. These shorteners reduce the amount of bend in your knee, making it easier for you to pedal a bicycle or recumbent trike. Great for people who are under 5' 4", people who have bad knees or hips, people recovering from hip or knee surgery or going through physical therapy.
The shortener bolts into the crank arm, where your pedal normally goes, and pinches the crank arm with adjustable cams. Great for wider crank arms. Use the CJ Ackley Machine Company 1/2" or 20mm Fastening Bolt Kit for Threaded Crank Arms for 1/2 inch pedal threads or for stationary exercise bikes with 1/2 inch pedal threads.
Click here for an assortment of CJ Ackley Crank Arm Shorteners that we offer.
Specifications:
- Shortens crank arms by 24, 41, 58 and 75mm.
- Adjustable cams to fit a variety of wide crank arm widths from 23 to 42mm.
- Compatible with 9/16" pedal threads.
- Sold individually- choose from left or right side.
- Comes complete with a 6mm allen wrench and a tube of Loctite 242 to install the shortener on your crank arm.
- Pedal wrench not included.
- 210 lb. weight limit on upright bikes. Do not stand on pedals continuously or you will break the shortener.