is the definitive suspension choice of the discerning Vespa owner for decades. Their extensive experience on the racing scene flows directly into the development of their shock absorbers and every single unit is subject to an exacting testing process before they leave the factory to ensure their usual high quality standards are met. YXB Race-tuned rear shock absorber including a gas-pressure support, separator piston for hydraulic oil and nitrogen gas, progressive double spring system, 12mm damping piston rod, spring pre-load is adjustable. Brand: Fits: 2014 and newerVespa vera/Sprint 125-150cc Measures: 400mm (40cm) eye to post, 17mm post diameter, 19mm eye diameter