Spring sets are heavy dutyMade in the U.S.A. Kawasaki -- ZRX 1200 R -- (2004, 2002, 2001, 2003, 2005); Kawasaki -- ZX-9 R Ninja -- (1995, 1997, 1994, 1996)
Made in the U.S.A.Heavy-duty spring kits contain six powder-coated springs, stainless steel screws and choice of anodized spring cups; do not increase lever effort.