After-Market Adjustable Performance Shock with Reservoir for the 50cc compatible with Honda Ruckus. Modification necessary - can not be used with stock air box!Also fits compatible with Honda Navi 110! Overall Length 270mm (10.75") Mounting Distance (eye to eye) 252mm (10") Mounting Hole Diameter 10mm Thread Size M8x1.25 Adjustable Offset Shackle Nitrogen Charged Made in Taiwan compatible with Honda Ruckus 50 (NPS50)