One would be amazed at the difference in weight, between a beadlock, and non-beadlock wheel, and the motor will appreciate it, same with rim/wheel sizes, we have the luxury of being able to use either a 10" wheel, or a 13" wheel, the wheel and tire combo, will easily take 15lb off each rear corner, and the motor really likes that, same with the front wheels and tires, that poor little motor has to get them rolling also. Axle sizes, hub material, ring gear weight, driveshaft, all contribute to what the motor has to deal with to get it moving, as well as the total mass. Just a lot of things that contribute to the whole picture. Another thing with my 600cc motor, even tho it's liquid cooled, it's a good 30lb lighter than the old Honda, and that's weight off the front end, that doesn't need to get moving, makes getting a bite easier. Bob
