My dad is running an EPI Bright Green spring on his P650. He has 27' mudlites on it. The Prarie is basically stock aside from a K&N and the napa hose mod. We were wondering what spring would be the best for the larger, heavier tires? Thanks.

Ross

 

I run the maroon primary and the black secondary spring ,-no stall but better rpms to turn the bigger tires . I have 26 mudlites. I only lost 1 .5 lengths to a stock 650 in a drag, with my bigger tires. I raced him before putting the bigger tires on and i beat him, with these springs by 2 lenghts. dg-5 on the way, look out!

 

I'm trying out the Dalton big tire kit right now, blue primary and their pl/purp sec., so far I'm quite impressed, pulls like crazy, don't seem to have any top speed loss, but thats not much of an issue for me anyway, still goes plenty fast.