difference. fie 2018 Rabsorption, thanks to a weight reduction of 700g and further optimised rigidity. A new swingarm follows a similar design philosophy, and sees a further weight saving of 100g to contribute the improved handling performance. The subframe also gets a new hexagonal structure that improves rigidity, and with a slimmer design, it improves the overall look of the bike; added practicality benefit being the ease in which the air filter can now be removed.In turn, the seat rails are moved closer together and raised to help accommodate the new rear shock; Showa’s Balance Free unit. It means the RM-Z450 becomes the first production motocross machine to adopt Showa’s premium, race-proven shock, which uses an external damping circuit to avoid variations in the balance of pressure. damping mechanism to the outside of the cylinder optimises oil flow and achieves smooth, controlled responsiveness to deliver better absorption over bumps and increased traction.For 2018, front suspension is again provided by Showa, with new coil spring forks replacing the air forks of the previous model. fie new, larger forks improve responsiveness and feel for the rider and diameter is increased from 58.5mm to 59.3mm.ppe changes to the RWeight saving is not only achieved by the new RM-Z450’s frame and swingarm: A new fuel tank, which goes from Aluminium to resin reduces weight by 275g, while also increasing capacity from 6.2 litres to 6.3 litres. Lighter front and rear wheels save 70g; 34g are 28TEAM SUZUKI RACING NEwSM-Z450 gets a completely new chassis, with a frame that improves cornering performance, stability and shock The movement of the M-Z450’s chassis mean the wheelbase is now shorter, 1480mm down from the 1495mm of the previous model, with the headstock moved 10mm backwards and the handlebars moved 7mm forward to increase the bike’s agility. Bars remain Renthal, but are straighter and flatter to allow riders to easily shift their weight over the front of the bike.saved with a new top yoke, 30g with a new chain guide and 246g with a new seat.A new, bigger front brake disc, which goes from 250mm to 270mm, and new rear brake master cylinder improve braking performance, while a new guard helps protect the engine during races and covers the water pump and magneto cover.Dee Rand improved low-midrange torque for 2018, as well as an improved throttle response. New and smoother porting in the cylinder head has increased tumble flow by 25%. It helps with a more efficient combustion and helps achieve a higher peak power without sacrificing low-to-mid range power. A 30% larger air filter aperture increases power output at all engine speeds. A new intake cam profile raises valve lift, improving intake efficiency and further helps to increase power across the rev range. As a result, there’s also a new piston designed to endure the higher peak power output. (Note: for FIM regulation model, the exhaust cam profile is also changed)”M-Z450’s engine delivers higher peak power 2017 Issue #2 - AutumnArminas Jasikonis‘A 30% lARGER AIR FIlTER APERTURE INCREASES POwER OUTPUT AT All ENGINE SPEEdS’T he winning time, it often made all the
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