Thanks for the help. One last thing. I have a Shimano 9-speed triple currently. (Yes I have a triple) When it says "Cycleops 32 Hole Shimano Powertap SL Mavic Open Pro Wheel" it still needs to be 9-speed to work for me. Correct?? I am assuming most of these Powertaps will be 10 speed as usually people using 9 speed triples have more problems to worry about than measuring power. Thoughts? Thanks