48T rear sprocket
I removed the OEM 47t and replace it with a 48t . I didn't want to replace the front because it would give an increase in RPM that I didn't want. The 48t is a 2.13% increase in RPM and while not a lot I can tell rolling on the throttle out of a curve and accleration in 2-5th gear. I'm a pretty big guy at 6'3" and 245lbs and pulling mountain grades and general acceleration this seems like the answer without adding the 7.15% a front sproket would add.
At 65 mph indicated in 5th gear a 48t (+1) rear adds 115 rpm. 2.13%
At 65 mph indicated in 5th gear a 14t (-1) front adds 388 rpm. 7.15%
My gas mileage seems unaffected I've burned 2 tanks and both came in at 57 mpg with the OEM 47t is was a pretty constant upper 50's per gallon.
2015 Suzuki V-Strom DL650 bought new 4/26/17
2015 Victory Cross Country bought new 7/11/15 (dyno tuned 118hp 116tq)
If it's not broken, make it better
My take on oil: Name brand, wet clutch compatible.....BAM good to go.