Hase Adjustable Length Crank Arms Shimano Hollowtech
New from Hase. A fully adjustable crankset that can be adjusted in length from 65mm to 165mm in 15mm increments, without tools. This ingeniously engineered crankset lets you adjust the crankarm length with only a quick-release lever and a push-button, no shop tools necessary! Ideal for recumbent riders and riders with disabilities. Or even riders with varying leg extensions or physical builds. Also great for young riders, or if you have multiple riders riding the same bike or trike.
Shimano Hollowtech compatible, these crank can only be used with the Shimano STEPS e-assist system. Does not work on other style bottom brackets and does not include a spider.
Click on the following link for a quick video demonstration of this amazing device: Hase Adjustable Length Crank Arms Video