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Old 01-30-2013, 07:16 AM
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cannonball2 cannonball2 is offline
Motorized Bicycle Elite Member
Join Date: Oct 2010
Location: Colonial Coast USA.
Posts: 3,286
Default Re: Friction Drive Drivetrain Clutch Diagram

Here is a pictorial explanation of my point. The yellow bike is one of my oldest MBs. I wanted a full suspension traveling bike. FD was the easiest way to make it happen. This bike has gone through such an evolution to make it totally useable for long trips, even trailer pulling. It has a hand clutch like a m/c using a scissiors lift, very easy to use. The only advantage of your system I can see is a larger slower turning roller and the possible use of a cent. clutch. The rest is complexity that adds weight and failure points-belts, bearings etc. If Im gonna be a long way from home(and I have been) it will be with this bike because of its reliability. This bike is very simple just loaded with stuff for traveling like a 5qt fuel tank that makes it look complex. The link is to an inframe Schwinn Preddy build. It uses a similar drive concept and a 3.5" roller. Worked very well. You havent indicated where the engine will be mounted, inframe or rear.
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