Rode with Pete, who waited for me as I was late for the group from SFVBC. Pete and I came up on Jay whose derailleur hanger had broken, and Stefan was helping her remove her derailleur and shorten the chain to convert it to a single speed bike. John Hallum (sp?) and Kieth were looking on, but they went forward on the ride after a few more minutes. Keith returned later on, as he was going to head back early. Pete and I stayed and I consulted on the engineering aspects of the problem. Pete mainly helped with sighting and quality control of the process. Eventually Jay started to roll again, and Pete discovered that he had a flat. We told them to go on and Pete installed a new inner tube; he had a small "Michelin" wire stuck in his rear tire. When we started riding again, we overtook Jay and Stefan, who were working more on the chain; it had broken a couple of times, but they eventually got the length just right for one of the gears, and Jay finished the ride. Pete had a second flat on the last curve of Angeles Crest, and was fixing that when Stefan went by. I chased and learned that Jay was riding fine and turned off by the LC Country Club. I had offered to check on Jay if she headed back to Sunland, and would give her a ride home, but no longer needed to worry about that, so I rode with Pete part of the way towards his Temple City place, and turned back for Sunland at Mission. I climbed fairly hard on Big T when we were going in order to keep up with Pete! I also tried to ride a fast lap around the Rose Bowl on my way back.