351mm eye to eye length. Manual adjustable preload. No adjustable rebound damping. Quality single chamber shock absorber with floating piston oil/gas separator to help prevent foaming of oil. - High resistance alloy steel shock absorber body - 12mm diameter steel damper rod - Gas pressurized (Nitrogen) - Floating piston oil/gas separator - CNC machined billet aluminum alloy heads - Spring preload (stepless) - Fully serviceable - Includes 2 shock absorbers, assembly instructions, manual and spring preload adjustment tool.