universal motorcycle rear shock absorbers with reservoir Perfect replacement for worn and defective shocks or for individual conversions Suitable for all types of motorcycles such as roadsters, retro, choppers, cruisers etc. Progressive suspension for optimal adaptation to the road surface and speed Adjustable spring preload (hook wrench included), length can be increased continuously by 10mm Pressure in the expansion tank can be regulated with an air pump for shock absorbers (not included) The tanks can be filled with compressed air or nitrogen Technical data: Total length 430-440mm, eye to eye (middle) 400-410mm, diameter eye 10 or 12 mm, spring thickness 8mm, diameter 62mm Max. Load capacity 300 kg Without ECE / road approval Scope of delivery: 2x shock absorber, hook wrench, sleeves for suspension eyes 10mm and 12mm Important: Universal item, not model-specific. Please use the pictures and dimensions to check whether the item fits the desired motorcycle. Changes may be