Belt drive for several reasons; #1 pulleys dont wear out as fast as sprockets do. #2 Oil dosent get flung all over you.#3 they dont bind and kink, #4 Quieter and safer. a belt gives if something gets caught in it.
#5 Reduces vibrations transfered from the engine and drive train. #6 Less strain on drive train components(free wheel, chain cogs ect jackshaft bearings) transmission gears. #6 Less rotating mass,Inertia and moment of inertia. Over all less maintenance,cost effectiveness, and parts availability, You can get a belt any where. Try getting a sprocket for a grubee @ ace hardware or home depot. When installed properly they wont slip in mud or anything
#5 Reduces vibrations transfered from the engine and drive train. #6 Less strain on drive train components(free wheel, chain cogs ect jackshaft bearings) transmission gears. #6 Less rotating mass,Inertia and moment of inertia. Over all less maintenance,cost effectiveness, and parts availability, You can get a belt any where. Try getting a sprocket for a grubee @ ace hardware or home depot. When installed properly they wont slip in mud or anything