Q. MT-15 vs R15 V3, which is great mileage bike?

That depends on your riding style. Most people say MT gives better mileage because its cruising speed is 90-110 and r15 v3 cruising speed is 100 -130 . R15 v3 is designed for top end performance so if you are riding in top end you will definitely get less mileage but MT is designed for low and mid end so most of the people ride it in that range so they get more mileage. If you ride R15 v3 in 60 or 70 then you can get same mileage as MT15. It all depends on how you ride the bike and how you maintain it. If you don't follow engine break period then chances are your bike will get less mileage than others. I hope this answers was helpful

R15 v3 if ridden well has a high even though compared to MT-15...but both are not great mileage bikes they are great.performance bikes.

Both the machine share the same engine and technology just the difference is one is proper track oriented machine and another is built for daily commute and comfortable riding .