I'm about to add a friction drive setup to my wife's bike so that she can ride with me. I'm running a GEBEified 26" dual suspension mountain bike with a custom 16t gear. Since she'll probably ride less than me, I'm going with the cheaper/simpler friction drive solution for her bike. I typically cruise at no less than 25 - 30 mph, and I would like her to be able to keep up with me. I will probably ride her bike myself from time to time. The bike won't be ridden in wet conditions.
Her bike:
24" Mongoose XR-75 dual suspension mountain bike
24 x 2.35 Kenda Krusader (smooth) tires with thorn-proof tubes
43cc 2-stroke Mitsu-clone, already broken-in, waiting for installation
soon-to-have lights and mirrors
The terrain:
Mostly flat, with an occassional hill and long grade thrown in
Her:
About 110 lbs, physically fit, willing/able to pedal assist
Me:
About 155 lbs, physically fit, willing/able to pedal assist
From searches on this site I am aware that I'll probably want a 1.25" or 1.50" roller for the 43cc engine and the terrain in my area. I've read that it is easier to change out the roller with the BMP kit vs. the Staton kit should I wish to do so. Conversely, the Staton kit offers 5" and 8" extensions for the engine mount (to better accomodate dual-suspension bikes,) whereas the BMP kit does not yet offer these and I would probably have to fabricate them myself. The biggest roller BMP offers is a 1.50" inch rubber roller, which I've read very little about. I know that Staton offers a 1.25" hardened steel roller, but believe that I've read they offer a 1.50" roller as well?
That's where I am. Thanks in advance for your input/comments/suggestions.
Her bike:
24" Mongoose XR-75 dual suspension mountain bike
24 x 2.35 Kenda Krusader (smooth) tires with thorn-proof tubes
43cc 2-stroke Mitsu-clone, already broken-in, waiting for installation
soon-to-have lights and mirrors
The terrain:
Mostly flat, with an occassional hill and long grade thrown in
Her:
About 110 lbs, physically fit, willing/able to pedal assist
Me:
About 155 lbs, physically fit, willing/able to pedal assist
From searches on this site I am aware that I'll probably want a 1.25" or 1.50" roller for the 43cc engine and the terrain in my area. I've read that it is easier to change out the roller with the BMP kit vs. the Staton kit should I wish to do so. Conversely, the Staton kit offers 5" and 8" extensions for the engine mount (to better accomodate dual-suspension bikes,) whereas the BMP kit does not yet offer these and I would probably have to fabricate them myself. The biggest roller BMP offers is a 1.50" inch rubber roller, which I've read very little about. I know that Staton offers a 1.25" hardened steel roller, but believe that I've read they offer a 1.50" roller as well?
That's where I am. Thanks in advance for your input/comments/suggestions.