for PIAGGIO Sfera 50 l 183 mm mono with T??V approval Chassis RACE – first-class and Grade AA – first-class repair For race use only. Not admitted in the area of the German StVZO! Product description Shock absorber??s are the central chassis element. The shock absorber has a major effect on the driving characteristics of your scooter through it??s spiral tension and graduated buffering. The rule of thumb goes: the stiffer it??s construction and more exact it??s adjustment, the better your traction and at the same time, better handling. BITUBO, with decades of expertise, is a prime manufacturer of traditional Italian quality shock absorbers for both motorcycles and scooters. They have a long and successful track record; with scores of Grand Prix wins, together with a lengthy series of wins at a wide variety of rallies and race series. BITUBO is the only manufacturer that delivers inspection certified parts for mucho many scooter models – paving the way for their inspection certified st