Industry insiders have revealed the first details of the KTM RC4 single-cylinder sportsbike which the firm has been developing in secret. We do believe that the engine would be good enough for 78bhp, which is allied to a low weight of just 132kg – giving the a power-to-weight ratio similar to a supersports 600 bike. Tests have also shown that early prototypes can top 140mph or 224km/h.
This picture shows the very first test machine KTM developed, using the chassis from the new Duke 690 wrapped in Cagiva Mito bodywork. But we can expect the final machine to be very different, with its own unique frame design, a re-tuned version of the 654cc single-cylinder engine and angular styling to link it to the RC8 Superbike. Stay tuned for more
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