Having survived the traffic and the heat to get to the tyre shop, I discover that they booked me in on the wrong day and are too busy to do my tyres, which aren't in stock anyway. If I go back I think they are expecting to charge me £230 for BT010Js rather than £200 for BT010s. Can anyone confirm/deny that the only difference betweens these tyres is the name ???? ta, jim PS. Anyone tried 010 front 020 rear to save a few pennies?