107 miles of consistent ups and downs over the chilterns, ie up and down dunstable downs, wendover, princes risborough and everything they could find in the middle.

I really enjoyed this, especially being able to jump from group to group. (all the faster riders were obvioulsy way ahead of me...) I would go to the front of a chain gang and just ride off the front..... oops!

Only got 1 puncture, which took me an age to repair.

Came in 6:34, which I was happy with considering the hills and puncture. Met a guy on the ride who did IMDE last year and he was faster on IMDE by an hour than his chiltern result.

Overall I did go a little hard though, so need to moderate my effort a bit. Average HR was 142, where I am aiming for 129 - 135 for IMDE.