Man I love that set of Koso gauges!!! Someday!!! I concur that it has no issues going uphill... even with my 220lbs butt. 55 should be no issues I've cruised at 70 on the freeway with no issues and room that if I need to accelerate it was there.
09' SE Ninja 250R
Shogun crash kit, Sato Racing bar ends, Pazzo shorty levers, Puig DB screen, Proton flushmounts, Luimoto seat covers, Fender Eliminator w/ LED signals and plate light, Progrip 725 black/green grips, Immortal Graphix Monster tank pad