@Hall 07 Booth O48 Betamotor will present its expanded motocross range: the RX 450 4T is joined by the brand new RX 350 2T, which replaces the RX 300, and RX 250 2T. The chassis is in common to all three models: molybdenum steel chassis with double split cradle, KYB hydraulic fork with 48 mm sealed cartridge stanchions, 50 mm monoshock KYB with progressive linkage, braking system with Nissin floating calipers and Galfer brake discs. The buttons for selecting the various mappings on the handlebar bumper and the Silent Blocks for vibration limitation are also shared. Specific work has been done on the engine of each bike: the RX 450 boasts a new head, a new sleeve, and a new exhaust system. Piston, exhaust valve, crankshaft, intake geometry, engine casing, and exhaust of the two 2-stroke bikes have been redesigned starting from the base of the RX 300 and adapting to the new displacement.
