Re: Cheap Rubber Motor Mounts
When I first built my bike (rigid mount with stock clamps, no chain tensioner) the bike would set my feet numb in 10 miles. After using a spring loaded neoprene roller to just take the vibration out of the chain (hand tight by using dropouts and axle placement), I haven't had the problem and the bike runs fine. Chains have lasted a LOT longer now.
1" roller Dax Friction Drive and Tanaka 3300 with mods.