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Old 01-31-2013, 08:58 PM
Nehmo Nehmo is offline
Motorized Bicycle Elite Member
Join Date: Aug 2011
Location: The Slum of Kansas City, Kansas, United States
Posts: 158
Default Re: FD Roller, Material?, Method?

My oak roller is installed and functioning. It's working acceptably. I'm having some slipping, but I haven't had a dry day yet, so I expect that to improve.

In your case, cannonball2, the roller is limited in size because your only gearing is that of the roller-to-tire. Since I'm using an intermediate shaft, I can size the roller larger, and then I can adjust the ratio by pulley sizes.

I also attach the roller to the shaft by a different method. I sandwich a pin going through the shaft.

My next experiment will be using 2 4"to6" diameter aluminum cups (or something).
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