PRO-X is the most cost-effective shock in the YSS range. Double-action damping system with adjustable spring preload (tool included). Progressive damping means an improved and more pleasant ride. Not suitable for vehicles with Piaggio engines (e.g. Aprilia SR50 factory).
Length: 290mm (mount to mount)
Internal diameter of Upper Bush: 10mm
Overall width of top fitment: 20mm
Space for bottom fixing: 20mm
Spring Diameter: 53mm