Sam Christmas shot the British Speedway GP for Sideburn 12 (and Maxwell P's BSA for SB9). Here's some more of his work. It's bloody marvellous.
He's planning an exhibition in January. It'll be in London, but worth a day out to see, I reckon.
There's a short interview with him at The Bike Shed.
From top to bottom (Kitty for Davida; Kingdom of Kicks; James from Kingdom of Kicks, Rensh the Widder).