i run a 2004 warrior with stock 22" tires, i was going to drop to 20" on the rear and 21" on the front, is it true that i will have to drop down teeth on the rear sprocket? and if so where can i find them? iv looked everywhere and all i can find is 40 teeth sprockets, which is the stock rear sprocket...

 

you dont HAVE to, but if you dont want to loose some top end speed then you will need to go down 2 teeth. If you dont you will notice better bottom end but will loose around 3mph(just a guess)

 

YA man the rule usually is If ya drop 2'' in tire size ya drop 2 teeth in the rear, Or add one to the front,
Adding one to the front is liek adding 2 in the rear, So Maby try the front first, Cheaper TO