So, I'm debating my new bike purchase next week and my current road bike is in for a service. This leaves me with just the mountain bike for training. For this reason I went out on my own today as I figured I'd hold people up. One thing I  noticed was how increadably comfortable it is going out on the MTB. With a saddle height that's below the handlebars, front suspension and tractor tyres on the wheels it was like riding an arm chair! I was actually targeting pot holes for the first hour just because I could! And initially it wasn't as slow work as I anticipated completing the 41km in 80 minutes (that's 19.1 mph). However on the way back the arm chair I was sitting on turned in to the airchair I was towing as it took me 100 minutes to get the 44km home into a slight headwind (16.4mph). An average speed of 17.6mph over 3 hours ain't bad on knobbly tyres and a bike weighting about 47kg, but it was certainly harder work than it should have been on a fairly flat route. Roll on my new carbon Roubaix!