I've got a fresh Ultegra 12-27 for you mountain goats (or those who just want some extra help) and a less fresh but still very rideable Dura-Ace 11-23 for you speed demons. I've got yellow spikes on my helmet - see you on Saturday! Call, email or text if you're interested and I'll bring one (or both) along on the 4th! Bill Turek, seven six zero five three two five four seven nine or wbturek at yahoo.com.