Brand New Bitubo XZE1 Rear Shock Absorber Bespoke, built to your specification Preload Adjustment locking rings (stepless) Rebound Adjustment Length Adjustment (+/- 5mm) Red Spring Gas (Nitrogen) pressurized shock absorber with oil/gas floating piston. Steel body, Ø 14 mm steel rod with low friction surface treatment and CNC machined billet Ergal heads. PLEASE USE THE ADD NOTE TO SELLER FUNCTION TO LET US KNOW YOUR WEIGHT (IN RIDING KIT) + PILLION PASSENGER AND/OR LUGGAGE IF IN PLACE MORE OFTEN THAN NOT. LET US KNOW YOUR RIDING STYLE (COMMUTING, TOURING, TRACK DAYS ETC) 2 Years/20,000km warranty (extendable with servicing to up to 6 years or 60,000km). Message for more information. About Bitubo Bitubo is a renowned Italian company specializing in the design and manufacturing of high-performance suspension systems for motorcycles.