This is on the B50/20 course, which isn't one I'm familiar with. However it's probably on the A11, with HQ around Attleborough. More info (and online entry) on the CTT website.
My name is John Swindells and I'm a keen recreational cyclist with a preference for long one-day rides. I've also previously dabbled in time trialling and cyclo-cross. See more of what I get up to on Strava!