For my brother's B-day I got him a Mavic Cosmos wtih the sealed Mavic Hub. Are people happy with this rim and hub. He weighs in at 150-160 lbs and he was regularly rubbing the rear brake when climbing with his Scattante R-550's ALX A-300 wheel. Any insight would be great on the Cosmos. Also, what's the feedback on the ALX A-300?
Thanks,
A