Wtb velociraptor comp rear wire tyre the velociraptors are legendary mountain bike tyres they are quite possibly the most popular tyres in the history of the sport the rear is renowned for its steering control while the rear grabs the trail with predictable tenacity after 14 years the velociraptors still shine as dependable frontrear specific tyres wtb velociraptor comp rear tyre specifications size 26 x 21 47 559 etrto 17c 27c gms 4752 weight 760g rubber compound dna casing 27t