your bike has a standard swingarm, and your friends S4R is a single-sided...so without a LOT of mods, it wont work
(a rear wheel from a M900 or M1000 is what you need)
(a rear wheel from a M900 or M1000 is what you need)
MonsterMan said:In 2001 it was a S4 not a S4R, so if it is a 2001 S4 you'll be good to go.