Dustin Maki
Just got it firing!
I've got an idea for a sidecar racing rig with the sidecar wheel driven by a solid axle through the final drive.
Instead of the rear wheel cush drive fins, the final drive will contain a Rzeppa joint with the axle passing through it, and through the area where the stock axle nut goes. The bike rear wheel will be offset slightly to the left and mounted only to the axle and the sidecar wheel way to the right. The left side of swingarm will be eliminated and the right (single)side beefed up. Essentially becoming like a quadbike single swingarm with solid axle pivoting inside the final drive. The idea being that the sidecar weight and both rear wheels stay planted while the bike and front wheel are free to lean into corners both ways.
I need to know if the final drive is likely to hold together if I start opening up the area on the (right)outside to allow clearance for the axle shaft to pass and pivot. The bike is a 2000 Jackal with stock final drive. If you know of any more suitable final drive unit, with a lower gear ratio, I'd love a recommendation.
Are there any known weak points in the Guzzi final drive that need reinforcing? I know this is at my own risk, just hoping to hear any experienced race mechanics to save me a few failed iterations.
If anyone has performed modifications to the rear drive casting, what welding filler materials worked best?
Any idea how deeply or how wide I can machine into the axle nut boss before I strike oil? If I do break through, any recommendations for patching it up?
Any comments on the overall idea, especially expected handling characteristics are welcome.
Instead of the rear wheel cush drive fins, the final drive will contain a Rzeppa joint with the axle passing through it, and through the area where the stock axle nut goes. The bike rear wheel will be offset slightly to the left and mounted only to the axle and the sidecar wheel way to the right. The left side of swingarm will be eliminated and the right (single)side beefed up. Essentially becoming like a quadbike single swingarm with solid axle pivoting inside the final drive. The idea being that the sidecar weight and both rear wheels stay planted while the bike and front wheel are free to lean into corners both ways.
I need to know if the final drive is likely to hold together if I start opening up the area on the (right)outside to allow clearance for the axle shaft to pass and pivot. The bike is a 2000 Jackal with stock final drive. If you know of any more suitable final drive unit, with a lower gear ratio, I'd love a recommendation.
Are there any known weak points in the Guzzi final drive that need reinforcing? I know this is at my own risk, just hoping to hear any experienced race mechanics to save me a few failed iterations.
If anyone has performed modifications to the rear drive casting, what welding filler materials worked best?
Any idea how deeply or how wide I can machine into the axle nut boss before I strike oil? If I do break through, any recommendations for patching it up?
Any comments on the overall idea, especially expected handling characteristics are welcome.