I bought some sprockets from vortex, 42 and 45 tooth rear and a 15 tooth front, but the sent me 525 chain pitch sprockets (works with stock chain) not 520 chain pitch sprockets. returning them is going to be a hassle so If anyone wants them for $90 shipped let me know. thats for all three, they are brand new never been used still in the box. I take paypal. thanks