Ronaldskk. Posted August 8, 2021 Posted August 8, 2021 In only its fifth year of existence, the Honda CRF450RX has received a complete overhaul. The entire chassis has been updated, including the frame, subframe, swingarm, suspension, triple clamps, and bodywork. The engine received major changes to the cylinder head, intake tract, and EFI; it also now has a single muffler exhaust system. The 2021 CRF450RX remains a serious off-road race machine with the same high-power engine and sharp handling characteristics as the CRF450R motocross bike. 2021 honda crf450rx charging trees on the trail Riding the 2021 Honda CRF450RX.Jeff Allen Since the CRF450RX is an off-road competition model, it does have a few added features that make it more race-ready for events such as hare & hound, Grand National Cross Country (GNCC), and open desert racing. Those include softer suspension valving and springs, dedicated ECU mapping, a larger 2.1-gallon fuel tank, 18-inch rear wheel, O-ring chain, skid plate, and sweet OEM hand guards.
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