I've been reading the threads about darkside adventures, decided to go darkside with the Goodyear Triple tread. My question has to do with the front tire. Is there any difference in handling and feel between the Bridgestone 709 and BT-45? I can find the 709 locally (Wichita, Ks.),the BT-45 in not available, can be ordered but can not find it in the 130 millimeter, only in 110 millimeter. Is the BT-45 built in the 130 millimeter size?