We test a full race-spec Triumph TF250-X built by UK engine specialists MXology, the same team working with Triumph’s factory Enduro program. In this video, we break down the $6,500 high-performance engine package featuring a billet piston, ported cylinder head, upgraded transmission components, race ECU tuning, and custom clutch and gearbox fixes designed to transform the stock TF250-X into a serious race bike. After putting 18 hard hours on the bike at Glen Helen Raceway with multiple test riders, we explain how the MXology engine improves power delivery, over-rev, shifting performance, and durability compared to the stock 2026 Triumph TF250X.