A set of shock absorbers for the Yamaha from YSS made with Hybrid technology for a better feel and function. HYBRID technology combines the working of the oil with nitrogen, guaranteeing a softer, more comfortable feel from the suspension. The twin-chamber technology allows the nitrogen to be separated from the space the oil moves in, achieving very effective control of the load pressures as the scooter moves. The nitrogen sets how smooth the rebound is and, combined with the ability to adjust the spring preload, the HYBRID is the most affordable upgrade proposal over factory-fitted shock absorbers.