The YSS Top Line rear shock absorber specifically designed for the Kawasaki ZX-6R (2003-2004) models (Ninja 636 and 600RR) is the MZ456-330TR-39.
This suspension unit is part of YSS's performance-oriented "Mono Line" Z-Series, intended to provide a significant upgrade over the original factory shock for better stability and control.
Key Specifications
The shock features the following technical parameters tailored for the 2003-2004 ZX-6R platform:
Model Number: MZ456-330TR-39-85
Length (Wheelbase): 330 mm
Mounting: 10x30 mm top eyelet and 32x12 mm bottom fork
Piston/Shaft: 45 mm piston with a 16 mm heat-treated hard chromed shaft
Adjustability: Threaded spring preload, 30-click rebound adjustment, and ride height adjustment of up to +10mm