[neweuser]

Ok. Well the 9xl, yes, it has more top speed. But i'm looking to race very soon. So dependability is most important. I ran the 9xl geared 16/51 and 18/51. 16/51 ran cooler for longer, but almost tooo torquey??? will try the 10xl tomorrow and let you guys know. It's nice though....lovin LIPO!