1936 advertisement for a [later model of] Cyclo gear, courtesy of Grace's Guide

Melvyn Hirst and William Hill at the Clarion House in Pendle Forest in the early 1980s

The Cyclo advertisement makes the claim that the gear 'offers the advantages of mechanical simplicity with all parts readily accessible and nothing to interfere with quick drop-out wheel.' This claim is probably an implied criticism of gears such as the TriVelox.

Mark and Melvyn Hirst at the Clarion House in Pendle Forest in September 2014