I have a MB cruiser, which i love. A buddy bought a preassembled cruiser which is built on a Huffy Cranbrock, he does not fill safe on that bike, and has asked me to take the kit off and put it on his mid to late 1990s Trek mountain bike. I was woundering about how well the rear sprocket will fit the rear wheel? And if there is anything else I should take into thought before I go forward. Any advise would be greatly accepted. Thanks, BadBooh!