i'm doing this on an old autobike (LOL)

here's the original bike's setup:
http://www.bikepedia.com/quickbike/B...c#.UpUyfcQ_vTp


... i'm using it to tow my daughter on her bike using a trail gator. i have 700x28's mounted with plenty of room...can run up to 35 but that's probably overkill if i'm only towing her and her bike. it's a single 44T chainwheel (coast mechanism in the bottom bracket)... and i'm using a 32 spoked wheel out back, with a 7 speed cassette and the shimano sti flat bar/mountain levers (for sidepulls or cantis). for brakes i'll be using single pivot side pulls. can't seem to find the mavic canti adapter plate anywhere. oh, the cassette consists of: 12-14-16-18-21-24-28...looks like a "B" series.

wish me luck...LOL