Enter Tomasin Racing. The Italian company is most known for turning 2021–2026 Honda CRF450Rs and CRF450RXs into CR500Rs, and now it’s expanded its product lineup to include a T500 Engine Kit that transforms 2023–2026 KTM 450 SX-Fs into a 500cc two-stroke. If KTM made such a model, it would probably be called 500 SX.
Tomasin Racing offers its T500 Engine Kit for 2023–2026 KTM 450 SX-Fs for 8500 euros ($9966). Consumers can also purchase the bike as a whole—a 2026 KTM 450 SX-F with T500 Engine Kit installed for 17,500 euros ($20,517).
Check out tomasinracing.net for more information about its products and pricing.


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