Hello, I would like feedback on any Lefty compatible wheelsets that one may have experience with. My Rush has the stock Mavic XM117 wheels and I am looking to replace them. I have read and heard that the wheels are one of the most important upgrades that can be made to a bike so I would like to give it a try with the hope of not being disappointed. I have seen online the new Mavic Crosstrail wheelset that I feel are at a reasonable price...the SLR wheel are much nicer but 1K...just can't see spending that much when not a racer. Any feedback received would be appreciated.