Originally posted by jigga21
63.5 mm in diameter? I think my tires are 24mm. Is 17MPH the fastest you can get in this car or just with your setup.
24 mm is how wide your cars rims are dude, I mean the distance from the top of the tire to the bottom when viewed from the side.
You have to know, the gearbox ratio (in your case 1.77) the number of teeth on the pinion and spur (you've given those) the rpm of the motor (you gave that as well) and the tire diameter to calculate the possible top speed.