2003 Sherco 2.5

. Sherco added the prefix initials ST to the engine range

Sherco modified the tuning of the 2.9, 272cc, model; making a more mellow throttle response for better grip in wet conditions. This was done by increasing the volume of the cylinder head combustion chamber (lowering the compression ratio) and reducing the cross section area of the transfer ports.

To signify the trials motorcycle range, rather than the SE enduro and SU supermoto bikes now available. Sherco introduced the Sherco R; a commercially available version of Albert Cabestany's works machine available in 2.9 (2-stroke) and 3.2 (4-stroke) models, which, among other modifications, included: a titanium exhaust front pipe, high compression cylinder head, keihin carburettor and numerous carbo…