Let's face it, you never know when you are going to need new tires. A nasty thorn, a sharp nail or in my case a construction staple can find its way through your old skins. It is inevitable that you'll need to change up. I had been rolling on my Schwalbe Rapid Robs for a good year. I was very happy with their performance especially considering the price. My Rapid Rob review  has become the number one most read story on my blog. So, I decided to record the adventures of my new rear replacement tire. My local shop Real Bikes Englewood sold me a WTB Velociraptor 2.1. With front and rear specific treads the Velociraptors are a gnarly trail lovers dream pair. They first came out in 1994 and have been tearing up the muck ever since. Granted, jumping from the small, fast rolling knobs of the Rapid Rob to the huge paddles of the Velociraptor is a big leap but I assure you it was a necessary change. Once again I know what you're thinking. You're thinking; Al...