Which sportive is it? Do you want to go round fast or just happy to get round? If the latter, just start off by doing some 30 mile jaunt after work and add 10 miles on every two or three days. Try do 60 or 70 at the weekend. Should be fine.
@Hovis started
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Which sportive is it? Do you want to go round fast or just happy to get round? If the latter, just start off by doing some 30 mile jaunt after work and add 10 miles on every two or three days. Try do 60 or 70 at the weekend. Should be fine.