The Acera X drivetrain was already better than most more expensive bikes that the LBS had but they had a crank off of a rock hopper and good pedals with built in straps. This will give me the additional top end I needed on the downhills (bigger front sprocket), and more power on the hills with the straps on the pedals. I'm happy, total bill about $75. The downside, I have to drive today, can't pick it up until tonight.