TESTED: 2026 BETA RX450

Beta’s RX450 four-stroke returns with its most comprehensive step forward to date, and we’ve now had the chance to give it a crack at the recent 2026 Beta MX Launch. Developed to edge even closer to the factory bikes competing in MXGP and AMA Supercross, the MY26 RX450 is all about delivering a stronger, more usable character on track, with a clear focus on performance, rideability and reduced rider fatigue. Transmoto’s John Prutti swung a leg over the updated RX450 and put it through its paces, sharing how the changes translate in real-world MX conditions and whether Beta’s flagship four-stroke now feels as serious as its factory-inspired intent suggests.