HI I been riding my Jamis comfort bike for two years and would like a bike that would be more on the road type. I was wondering if anyone knew what model have some of the comfort and yet have thinner tires. I usually ride 30-40 miles four to five times a week and I am 58 years old. I have only ridden a little over the past two years. I was looking at the Jamis cuda for an upgrade towards a road bike. Does anyone have any suggestions?