View Single Post
Old 10-07-2012, 09:01 PM
happycheapskate's Avatar
happycheapskate happycheapskate is offline
Motorized Bicycle Elite Member
Join Date: Nov 2009
Location: Rockwall TX
Posts: 1,992
Default Re: Lehr Propoane motorized bikes

I doubt it's quiet, but it doesn't sound bad. (It's not grating on the ears.) I am surprised though. I have heard some really quiet propane engines (like the floor buffers in the supermarket). I think perhaps it's because a fixed speed engine can be tuned to run with a lot of exhaust pressure and baffling, especially with a few spare horsepower.
1" roller Dax Friction Drive and Tanaka 3300 with mods.
Reply With Quote