Carpenter Racing Valve Springs are the most popular valve spring for the Suzuki Hayabusa and will work with cams up to .445″ lift with stock or aftermarket retainers. The 60psi springs are recommended for nearly all applications including all motor and nitrous. The 70psi springs are recommended for turbo applications only. FITMENT Suzuki Hayabusa – All Years / 60 psi valve springs, for cams up to .445” lift, w/stock or aftermarket retainers Suzuki Hayabusa – All Years / 70 psi valve springs, recommended for turbo applications only Suzuki GSX-R1000 (2001 – 2008) / 50 psi on the seat without the stock spring base and 60psi with spring base and stock retainer Suzuki GSX-R1000 (2009-2023) / 60 psi valve springs, can handle the largest cams available Kawasaki ZX-14 – All Years / 62 psi valve springs, work with stock retainers FEATURES These are the same valve springs used in all of our championship-winning race bikes. Made in the USA
