Good looking custom 750 Street you built! You will probably notice a slightly lower engine RPM at highway speed with that larger diameter rear tire. It probably even gets slightly better fuel mileage at highway speed now as well. Pay attention to the indicated speed shown on the speedometer now. You will actually be riding slightly faster than the indicated speed on the gauge because the speedometer runs off an electric pickup sensor on the engine. It's set up from factory to have the original wheel & tire size to give an accurate display of driving speed and odometer mileage traveled. By putting the bigger tire on the back it now thinks the bike is traveling a little slower than you really are because of the reduced engine RPM in all gears. Not a big deal on the highway but important to know in the city when riding through school zones or playground zones.