yeah dude , w/ a stock swingarm most guys i ride with are to heavy for the shock(according to the specs)i'm about to put a plus 6 on mine and i definately am going to revalve and respring the stock shock , i had a +4 on there w/ stock shock and it was very plushy and bottomed out some , so i can only imagine the +6 im gonna put on there would be too much leverage for the stock spring .