HI Jemma,

Looks like you have a little company here after all!.....I have a rack mount engine....can't remember the brand but I got it as a kid (I'm a big kid now at 42)....So it does have a few years on it....Far as I know it still works since its been stored at my parents house for many years....I'll try to dig it out and get it on a bike and post it here so you and your bike won't be so alone! ;-)

I remember the engine was quick but I do remember it had an appetite for rear tires since it was a steel roller friction drive...Since I lived in hilly country at the time I probably should have bought stock in the tire companies back then!

Andrew