Honda's 1982 V45 engine powered the first mass-produced V4 motorcycles but faced reliability issues that nearly killed the layout entirely.
Before the inline-four became the go-to default engine and the V6 was compact enough to fit into small engine bays, the four-wheeled automotive world saw the V4 as a brilliant compromise. It was ...
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Yamaha chief reveals what they instantly realised about their V4 engine after reading the 2027 rules
Yamaha are now locked in with their V4 engine project after bidding farewell to their inline four after the 2025 MotoGP season, with the 2027 regulations already in mind. The Iwata outfit were the ...
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