I have entered a 100 mile ride on 8th June (Norwich so fairly flat) and am not sure what sort of miles I should do leading up to the day. I am 47, 12 and a half stone and not too unfit. I am managing a 12-15 mile ride one or twice in the week and at weekends am up to a 40 mile run one week and a 16 plus a 34 mile the following. Most I have done is 54miles (L2B) last year so in uncharted terratory for me. I had in mind building up week by week to a 60 mile run the weekend before. Then on the day I would be pushed along with the event a bit to get through. I am looking at 8 hours or thereabouts as my time for the 100 but not over concerned at time just really want to finish it without to much drama. Is this a reasonable plan? If not what would you suggest? It is only 6 weeks away and suddenly I am a bit worried!