Hello so I have found a solution to make my 3HP go 30 mph, Instead of then shaft idea provided by Dave which involved: Using several Jack shafts "A 12t clutch sprocket to a 24t Jack shaft to 10 Jack shaft over to a 47 rear sprocket." I have found a cheaper format option which involves a 10t centrifugal clutch (instead of keeping my 12t) Installing a 80t rear motorcycle sprocket which will give me accurate specs as listed: note here is a before and after problem pre calculated due to there are no 110t sprockets. This is before considering Jack shaft considering.... There is no such thing as a 110t rear sprocket which cannot be valid without Jack shafting. Here is after playing/lowering clutch tooth range.... This is the correct and slightly available option as listed that will work for my bike without destroying the bike paint with a bunch of sloppy WA STATE CHEAP WELDS My main concern at the time is the rack has a bit of play in it would it be wise to get a light steel sheet plate welded over the sites of the rack to the frame to take out the play access? It already needs a paint job so before welding I will have it grinded down in that area and have a paint shop fix the raw weld color area. In addition, HOW do I true a wheel I heard if it wobbles left you adjust the right side by tightening 1/4 at a time and loosen the opposing side. Wobbly rack front ant side view. Also take note where the "triangle like sides of the rack are that's where I feel a half sheet of steel would work best.