Hi Freespirit, this will be my 4th time. Lots of climbing involved but it's only 55 miles long and it's not a race, it's a really good day out. Well within your capabilities, obviously easier on a road bike but you can still do it.
I need the bearings on my MTB fixing. Whilst my LBS is doing this for me, will my MTB tyre fit on my spare front road wheel. Both are 700 (MTB is 2.1 I think)with presta.