Smaller rear sprocket

[FlipFloMan 1]

The bird is at 3500 rpm doing just 80 km/h at 5th gear, doesn't really need that much torque on streets
Wonder anybody here is using a smaller rear sprocket for better fuel economy?

[Mick 162]

I get 80 km/hr at 3000 revs with standard size sprockets.

[Stinkfinger 1]

Hi, Ive put an 18 tooth front on mine, much better