Carpenter Racing Valve Springs

Carpenter Racing Heavy-duty valve springs are a must for any high-horsepower engine build! When you move to higher lift cams, increased rev limits, or extended high RPM use, heavy-duty valve springs offer extra protection.

Carpenter Racing heavy-duty valve springs are precision wound from the finest spring steel, then heat-treated and shot-peened for incredible strength, longevity, and reliability.

FITMENT 70 lb.

• Suzuki Hayabusa (1999-2024)

FITMENT 60 lb.

• Suzuki Hayabusa (1999-2024)
• GSXR-1000 (2001-2008)
• Suzuki GSXR-1000 (2009-2025)
• Kawasaki ZX-14R (2006-2025)
• Kawasaki ZX-10R (2011-2025)
• Kawasaki ZX-10R (2004-2010)
• BMW S1000RR (2009-2014)
• BMW S1000RR (2015-2018) (Includes (8) Exhaust Base Replacements)