I am looking to hopefully do my first 100m ride next week, as my work has run out at the moment. I got my self a 2nd hand road bike in January after having to give up football due to knee injuries. Since then I have been doing atleast a 25m ride every week. The problem I have had is trying to cram these rides into a spare couple of hours on a sat morning. Now I have a spare few days im going to try and go the whole hog and do 100 in a day. Will this be wise or will I start to crumble at about 60m? I will take my wallet just in case has anyone got any tips.