had my first ride sunday with trying new gearing for the first time. love the 13/50 gearing combo. i can ride in second and third now on the trails (used to be alot of first gear riding). much more user friendly gearing. great overall power. i did lose quite a bit on top though. i ran it for a stretch down a long road to see how it does through the gears. i actually suprised myself. i thought i was in fourth and went to shift again. i was actually topped out in fifth. actually had to stop to double check. yup sure enough fifth gear. not necessarily a bad thing. rarely do i ride balls out. harldy ever actually. but so much more user friendly gearing on the trails. in first on the steep down hills the bike would just slowly go down using engine compression. never have to touch the brakes. so far i like it. might try a 13/49 or 13/48 later if i do need that little extra up top, but i doubt it. if you have been considering it, give it a try. front cs sprockets are quite cheap!