Honda CT90 - posi-torque sub transmission

Honda CT90 - posi-torque sub transmission

Honda invented the posi-torque system in 1967 and used it on the CT90 range of the same year. This ingenious device had the effect of providing the bike with 4 additional hillclimbing gears in addition to the standard 4 ratios for road-riding Earlier solutions The posi-torque system replaced the unwieldy dual rear sprocket arrangement used...

Honda invented the posi-torque system in 1967 and used it on the CT90 range of the same year. This ingenious...