APE valve springs are necessary when using performance
camshafts. Engineered to provide adequate pressure for precise valve
control at high RPM, they are a must for making horse-power. APE springs
are designed to allow the use of the highest possible lift cams.
Manufactured from the finest heat treated, shot peened, chrome silicone
steel, every spring is electronically inspected during the manufacturing
process. Because of this process, we have not had a valve spring break
in a motorcycle in over five years.
Sold in complete sets.
650 thru 1100 2-valve (up to .440" lift)
1000 2-valve (over .460" lift)
2-valve Pro Stock (over .530" lift)