hi everyone
had new chain and sprockets kit fitted to my super four usally go for version R ratio 15/45 but this time had a afam kit with 15/40 sprockets fitted.
BIG BIG FU__KING MISTAKE. MY flying super four as gone boring gutless super four know at crusing speed 90 m.p.h bike is know revving 1300 revs lower.
ONLY saving grace is super four returning around 315 kilometers to a tank and as a motorcycle courier is a blessing.
My super four as know hit 140000 kilometers and engine still very very smooth and silent GOD I LOVE THESE BIKES.
JOLLY

you would of been better going for a 16/45 ratio a one tooth bigger on the front is the same as 3 teeth smaller on the rear, this should improve top speed a little without losing to much accleration and still be able to pull it through the rev range