do the rear springs for the stock shock make a big difference? i am 160lbs. and not ready to spend $100+ on a complete shock. i have heard that its easier to keep the bike straight during wheelies with the stiffer spring.... i want to make sure before i order one. thanks

 

the rear spring was one of my first mods and made a huge difference, i bought a BBR they had in stock where i got the 50, not sure how it's rated , but it made my whoolies lots betta

 

i like the feel of the stiffer spring too it rides nicer and makes wheelies easier.

 

sik50s spring is a lot softer then a applied one.....i like the sik50s better, but im also only 140 pounds soaking wet.