 The reason for the swingarm's banana shape is to allow the expansion chambers to run unobstructed under the engine to improve ground clearance in turns.The forks are 41 mm Showa (on the MY98+ models) inverted units and are adjustable compression and rebound, the rear suspension is a Sachs mono-shock which is adjustable for preload, compression and rebound.The front brakes of the RS 250 are Brembo dual 298 mm discs with Brembo Oro four-piston calipers.