I'm trying to decide which bike to use for the Pru. I understand that the TT bike is not permitted . So now my choice is the Bianchi (I've had a bike swiped on a train journey before so I'm a bit twitchy about taking it up) the Boardman Roadie, or the Boardman cross trail. I wouldn't normally do an imperial on the cross trail, but that makes me see it as more of a challenge. What would you take?