You wouldn't expect the st4 to go flying past you. He's got 115bhp to your 105 , that's assuming he's in tip top condition. He weights 215kg to your 229. Close figures close performance.
The aerodynamics probably account for the biggest difference between the two bikes.
Strangely enough I have a hard-riding friend who, amongst his collection of bikes, has an ST4S and he, on the odd occasion, has struggled to keep up with me when we've been attacking particularly twisty, bumpy bits of the Scottish countryside.




) they have to fiddle and totally screw it up.


