In a previous job I cycle commuted daily, a round trip of 24 miles. Currently I am cycle/train commuting in my current job - 12min ride to Thornaby Station on Dahon 20" folder, then train to Northallerton. I'm wanting to incorporate more exercise into my commute so have 2 options: 1. Cycle from Stockton to Yarm station on folder, approx 8.5 miles then train to Northallerton. This would give me 17 miles cycling daily, but on a folder. 2. Cycle Stockton to Northallerton 3 times a week, approx 45 miles round trip, and the other 2 days do my current cycle/train commute (Thornaby station). I'd have to buy a full sized bike for this option, but would be doing 135 miles a week. I think I could do the journey in approx 1.5 - 1.75 hours. Which option would you go for? Anyone cycled from Stockton to either Yarm or Northallerton and have any tips?