• A top and bottom view of a pair of silver CJ Ackley Machine Company Wide Crank Arm Shorteners.
  • A bottom view of a pair of silver CJ Ackley Machine Company Wide Crank Arm Shorteners.
  • Closeup of a silver CJ Ackley Machine Company Wide Crank Arm Shortener.
  • CJ Ackley Machine Company Crank Arm Shorteners Individual mounted on crank arm on the right side.
  • Angled view of the CJ Ackley Machine Company Crank Arm Shorteners Individual mounted on crank arm.
  • CJ Ackley Machine Company Crank Arm Shorteners Individual mounted on crank arm with a pedal installed.
  • Back side view of the CJ Ackley Machine Company Crank Arm Shorteners Individual mounted on crank arm.
1 7

CJ Ackley Machine Company Wide Silver Crank Arm Shorteners Pair

CJ Ackley Machine Company Wide Silver Crank Arm Shorteners Pair

210000004502

$155.00 USD
$155.00 USD $155.00 USD
Sale Sold out
Shipping calculated at checkout.

Reduce knee strain, hip strain and increase cadence with a pair of the CJ Ackley Wide Crank Arm Shorteners in silver. Crank shorteners allow you to pedal a bike or trike without having to bend your knee so much and make it easier to pedal without pain if you have limited range of motion.

4 in stock

Pre-Order Cancellation Policy

Have a question about this product?

View full details
Description
Specifications

The CJ Ackley Wide Crank Arm Shorteners in silver are available as a set for your bike. These shorteners reduce the amount of bend in your knee, making it easier for you to pedal a bicycle or recumbent trike. Also 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. 

For other options, view an assortment of CJ Ackley Crank Arm Shorteners that we offer.

  • 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 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.
  • 200 lb. weight limit on upright bikes.Â