Hello Forum,
I thought would share with you my board track style project. I started out with a 1962 Schwinn cruiser frame and added a Chinese four stroke kit. Being new to the whole motorized bike thing, I though it was going to be a bolt on and go project. Not! Everything that came in the kit, with the exception of the engine had to be reworked or replaced. Lets start with the 3 piece crank. I figured I would just buy an "ashtabula" to 3 piece crank bottom bracket conversion kit and my problems would be solved. Again, Not! Because the engine mount bracket was not designed for this frame style, it sits way to low in the frame for everything to work right. Notice in the pictures the stack of nylon "shims" to get the mock up just right. I was not able to move the engine far enough forward and up enough to clear the crank arms with the mount plate where it wants to fit in the frame. I think I finally got it where it needs to be. Now I will manufacture the new plate to mount the engine in its new home. In this location, I am also able to discard the chain idler/tension arrangement, which had no faith in in the first place. A little paranoid it would rotate in to the spokes. It doesnt line up with the chain angle anyway. I also could not stand the leaky tank that came with the kit, and was able to find an old moped? tank that fit nice. In addition I added heavy duty spoke wheels and white tires. I replaced the kit throttle with an aftermarket ATV thumb throttle which is much more comfortable in this application. About the only things left to do are fabricate some truss rods for the front fork and go riding. Thank you to everyone on this forum that provided information and helped me get this far.
Rock On!
Wayja
I thought would share with you my board track style project. I started out with a 1962 Schwinn cruiser frame and added a Chinese four stroke kit. Being new to the whole motorized bike thing, I though it was going to be a bolt on and go project. Not! Everything that came in the kit, with the exception of the engine had to be reworked or replaced. Lets start with the 3 piece crank. I figured I would just buy an "ashtabula" to 3 piece crank bottom bracket conversion kit and my problems would be solved. Again, Not! Because the engine mount bracket was not designed for this frame style, it sits way to low in the frame for everything to work right. Notice in the pictures the stack of nylon "shims" to get the mock up just right. I was not able to move the engine far enough forward and up enough to clear the crank arms with the mount plate where it wants to fit in the frame. I think I finally got it where it needs to be. Now I will manufacture the new plate to mount the engine in its new home. In this location, I am also able to discard the chain idler/tension arrangement, which had no faith in in the first place. A little paranoid it would rotate in to the spokes. It doesnt line up with the chain angle anyway. I also could not stand the leaky tank that came with the kit, and was able to find an old moped? tank that fit nice. In addition I added heavy duty spoke wheels and white tires. I replaced the kit throttle with an aftermarket ATV thumb throttle which is much more comfortable in this application. About the only things left to do are fabricate some truss rods for the front fork and go riding. Thank you to everyone on this forum that provided information and helped me get this far.
Rock On!
Wayja