High-quality, high-performance shock springs accurate to within .05 kg/mm made of high-grade chrome silicon spring steel shot-peened, heat-treated and preset (no sacking) outstanding stiffness to mass ratio measure 275mm l x 59.5mm i.d. 1 x 62mm i.d. 2Fits the following applications: Kawasaki ZX1000 Ninja ZX-10R (2006-2008) Kawasaki ZX1200 Ninja ZX-12R (2001-2003) Kawasaki ZX1400 Ninja ZX-14 (2006) Kawasaki ZX600 Ninja ZX-6R (2007-2008) Kawasaki ZX600 Ninja ZX6-RR (2005-2006) Kawasaki ZX636 Ninja ZX-6R (2005-2006) Kawasaki ZZR 600 (2005-2008) Suzuki GSX-R600 (2006) Suzuki GSX-R750 (2006) Suzuki SV1000/S (2003) Triumph Daytona 675 (2006-2009) Triumph Speed Triple (2009) Yamaha FZS1000 FZ1 (2001-2005) Yamaha YZF-R1 (1998-2006) Yamaha YZF-R6 (1999-2005)