Hello all, I joined this forum to learn some of the tricks of the trade with mountain biking, just picked up a new specialized rockhopper 29er and have loved every minute of it! I'm originally from central florida but the Air Force has taken me all over the world. I'm currently in San Antonio for aircrew school and then on to many more schools after that so the bike will be my enjoyment along the way I currently live when not traveling in Clearfield Utah with my wife and 2 dogs and we will be finding out where the AF will send us next in about 3 weeks!

Main reason I joined TODAY was due to my bike having gone through 4 tubes in 7 days of grass/street and dirt road riding... I'm dumbfounded and have no Idea what I'm doing wrong... the bike shop gave me 4 kenda 29' tubes and they just fall havn't been able to take more than a few hours ride time before they are flat. the stock tubes lasted until I got to TX and now I have blown both of those... Help me!