Twin shock absorbers mono-chamber type, with a oil/gas separating piston, nitrogen pressurized, specifically setting for individual models of motorcycles. These shocks improves riding comfort and vehicle control thanks to its internal hydraulic system. The large adjustment range offers excellent performance in every riding condition (rider only or full load on board). Shock body in high resistance steel alloy, both upper and lower attachments fully CNC machined from the top quality billet aluminium alloy. The linear or progressive springs are chosen and mounted according to the type of vehicle application. ADJUSTER: spring preload with single micrometric adjustment stepless ring Springs available in two colors, for different applications: 02 black springs - 03 chrome springs Also available for some models (Custom/Naked), the ‘lowered’ versions, shorter than original, indicated by the final “42” – “43”, and "higher" versions “52” – “53”, longer than original (contact your local dealer for the information on the versions available) N.B: The product shown in the photo is generic for WMB. Some characteristics (eg. attachments) can differ depending on the model application. Compatible with: - Suzuki: GSX 1100 Katana_M