
New RX450SM
The supermotard style has captured the hearts and minds of commuters and motorcycle couriers alike due to it’s unsurpassed agility in the confines of the urban jungle. Hyosung have seen the writing on the wall and are bringing their own single cylinder, 450cc supermotard style bike to the range.
The RX450SM’s engine is a liquid-cooled DOHC four valve single cylinder, with an aluminium silicon (Si) sleeve for more power and durability. The aluminium alloy comprises over 30 per cent Si and is the only alloy of its type currently in production. A PF die-cast piston is more durable and exhibits less thermal expansion than normal cast and applied steel (FE) pistons. Vibration is reduced by counter-balancing. Power output is 50bhp at 8,500rpm.
The frame uses CrMo steel for lightness with rigidity. The down tube of the main frame acts as the oil reservoir and the aluminium sub-frame is a separate section for easier maintenance. The aluminium swing arm is light, but rigid enough for the most demanding conditions. The wheelbase is 1,486mm with a ground clearance of 278mm.
The 45mm upside down front fork is fully adjustable and has 250mm of wheel travel. The rear suspension features a 50mm fully adjustable damper and has 280mm of travel. Brakes are by Brembo with the wavy front disc 260mm diameter, and the rear 250mm.
The digital speedometer includes a stopwatch function. The dry weight of the Hyosung RX450SM is 120kg