The SRM multi-length crank - fits Amateur, Science and Professional Powermeters - octalink only

These special cranks are particularly well-suited for testing the influence that different crank lengths have on power output while cycling. The crank length can be adjusted very quickly from 150mm to 190mm in 2.5mm intervals. The adjustable part of the crank is made of stainless steel, the fixed part of 7075 Aluminium. The fit SRM Professional, Science or Amateur style powermeters. It is NOT designed for outdoor riding. This crank comes with the SRM Ergometer as a standard part of the delivery and can be specified as an add-on for the SRM Indoor Trainer.