• A pair of CJ Ackley Machine Company Narrow Crank Arm Shorteners in silver with attachment parts.
  • 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.
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CJ Ackley Machine Company Narrow Silver Crank Arm Shorteners Pair

CJ Ackley Machine Company Narrow Silver Crank Arm Shorteners Pair

210000015414

$139.00 USD
$139.00 USD $139.00 USD
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Reduce knee strain, hip strain and increase cadence with the CJ Ackley Crank Narrow Arm Shorteners in silver. 

Low stock: 1 left

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Description
Specifications

The CJ Ackley Narrow 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 crankarms by 24, 41, 58 and 75mm.
  • Adjustable cams to fit a variety of narrow crankarm widths from 17.5 to 28.5mm.
  • 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.