With most bikes if the motor is reving its nuts off at motorway speed then take a smaller road.
my r100gs i fitted a taller 5th so the motor sounds happy at 70,80mph then the motor will last long
suzuki gsxr 600 srad sound fun bike
bmw r100gs i sold as it be came to unreliable.
road legal stomp pitbike sold
Klr 650 the worst ever made
Honda xl125rc powered by a cg125 block fun wee bike