Known as The Bun Run in honour of the Cinnamon Cafe's hot treats, this loop ride to Windsor is a winter classic.
Starting in Richmond Park, head out to Surrey via Addlestone before riding across Chobham Common. At Sunningdale, turn into Windsor Great Park and take a breather before putting the hammer down on the fast run into Windsor itself. Grab a bun, but don't linger too long or you'll regret it when you set off cold.
Avoid Staines by staying to the south on the way back, and return with a climb of Priest Hill. It's just a bit nicer than the roundabouts and dual carriageways.