Glad you heard from them! If I remember correctly, my pair of RR are more than 2 years old. There are cuts and such in various places, but they hold air well. I wonder if a new pair would have more traction (I spun out when it snowed this year), but I'm kind of wanting to see how long they'll last. I've got a new pair waiting in the closet!

I use a very old pair of Marathons on my old chair (which my Dragonfly attaches to). They're at least 6 years old now (haven't been used daily for over 3 years, though).

I run around a lot, but I guess I'm easy on them since I'm fairly lightweight.