[MPG_Plus]

I have a 2008 Ninja 250 and put a 16T sprocket on the front with a minor clearance mod to the chain cover on the inside that doesn't show, and no changes to the engine case with plenty of room. I also put a Scott-oiler on but have not switched to a non-Oring chain yet. I am averaging about 85 MPG (3 tanks)with a peak of 100 MPG. I am sure the peak was due to where it was topped of with a small tank. The rear sprocket is now a 38T and accelerates just fine. I have been thinking about taller gearing and a non-Oring but it seems I might need some aero mods. I also added a rear view camera which I really like for safety because the stock mirrors have poor visibility when tucked.