
In any other season, the MotoGP engine homologation rules are relatively straightforward. Or as straightforward as they can be when engines are sealed and set for a single season, with concessions for underperforming manufacturers.
But the imminent change of technical regulations for the 2027 season has added another layer of complexity. To reduce costs, and prevent factories from having to develop an engine for the 2026 season, as well as a completely new 850cc engine with a maximum bore of 75mm, engine development is also frozen for the 2026 season.
What this means in practice is that the engine design manufacturers in Concessions Categories A, B, and C (Ducati, KTM, and Aprilia) present for homologation before the opening grand prix of the 2025 season at Buriram in Thailand will have to remain unchanged for the 2025 and 2026 seasons.
Trust the process
That sounds simple, but there is a little more to it than that. So I have set out the process below.
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