Yamaha FZS Fazer 600 1998-2003 Mupo Front Fork Hydraulic & Spring Upgrade KitREF#K05YAM015 Mupo Race Suspension Italy Hydraulic and spring fork kit This kit contains two big pistons used for controlling rebound and compression. The system makes use of the inside stanchion tube as a hydraulic cartridge, simulating the most highly developed hydraulic forks. The kit in some cases is completed with a pair of springs which work in perfect synchrony with the pistons, ensuring both comfort and stability. We are authorized