Paul Bird Motorsport wishes to announce the signing of British rider Chris Walker to race for the Vent Axia VK team for the rest of the 2008 Hannspree World Superbike Championship. The 36 year old from Nottinghamshire will join existing rider Gregorio Lavilla in the team for the remaining five rounds commencing at Brands Hatch over the weekend of August 1/2/3rd. Walker, four times a runner-up in the British Superbike Championship, has been racing in the World Supersport Championship this season but hasn't enjoyed the best of luck on his Kawasaki so the rider who has 138 WSB races and twelve podiums under his belt is relishing the opportunity of racing a superbike again.