Radical is going into 2025 with upgraded ... RPE four-cylinder engine or a 1.5-litre 232bhp four-cylinder engine. The SR10 XXR continues with its 425bhp 2.3-litre turbocharged engine, based ...

Radical says the new engine has benefits for racers ... Radical has also upgraded the SR10 to XXR spec. It received more extensive styling modifications with front louvers in addition to the ...