What tooth # front and rear sprockets are any of you using for the Xtrainer? I am finding that I have mid-range torque but would like more oomph when trying to do my stand still wheelie pivot turns. Right now I am at 13 front and 51 rear. Of course it could be me. I have gone ahead and added a MWE clutch lever to help reduce fatigue and release the clutch faster to help try to pop the front wheel up.