I'm looking to replace the tires on the '02 Ace I picked up last summer. It only had 4000 miles on it and I suspect the Dunlop's on it are the ones it came with when new, and the sidewalls are pretty checkered. So I figure I'll replace the tires and tubes over winter. Searched the forums and there's 3 or 4 tires that get good reviews on the Shadow but the Pirelli MT66's look like a great tire for the money. Any reason NOT to buy a pair?