9,781 mi on Trek. 52 mile loop w Larry. We added Snyder Hill and back to last weeks 51 mi loop ride. This was my second and last ride on Larry's Dura Ace C24 rims w race tires and latex tubes. Wow, light and fast! -When we got back here we took off the tires and returned them to Larry and we re-installed my Bontragers which now sport two new 4000S II tires and a brand new, just out of the bag, Dura Ace 11-28 cassette. Larry watched me as I did the work myself using his chain whip and torque wrench. -My newly configured bike now weighs 16.7 lbs w egg beaters, 2 cages, Bar Fly & Brooks seat, with its new lighter cassette and lighter tires on the RXL rims. -I want to make this bike usuable while I wait the 4-6 months for my new Domane SLR w full Dura Ace and DI2 shifting, along with full carbon Aeolus 3 D3 rims. -I am planning to buy (if I can) a Stages/Pioneer Power arm for Ultegra 6800. Larry thinks I can get it for maybe $450. This way this current Domane is going to be a good bike while I wait.