Lowering: from -80mm to + 20mm Thanks to the advanced 24-step adjustment of the hardness, you can adjust the suspension to your needs, making it extremely hard or set the hardness similar to the series. The set consists of: 4 springs 4 threads of the keys instructions The product is covered by a 24-month warranty. set: FRONT: LENGTH: 180MM HARDNESS: 8 KGF / MM BACK: LENGTH: 180MM HARDNESS: 5 KGF / MM Lowering: from -80mm to + 20mm Thanks to the advanced 24-step hardness adjustment, you can adjust the suspension to your needs, making it extremely hard or set the hardness The set consists of: 4 springs 4 threads of instruction wrenches Product covered by 24 months warranty. Specification of springs in the set: FRONT: LENGTH: 180MM HARDNESS: 8KGF / MM