All Trekmondisher dealers sell aftermarket Bontrager stuff. The tires are nice, pretty much same as any other tire in their respective price ranges, and the one drawback is they tend to be very hard to get on a rim, especially a Bontrager rim. Typically on my road bikes I get 1,500 out of a rear tire, and up to 2,500 on a front. My crappy steel bead Conti 2000's I got for $15 lasted me 2,500 all around with a trip to Australia (without a single flat) thrown in there. My kevlar bead 2000's have proven much more delicate.