I tried the Liquid Wrench Lubricating & Penetrating Oil with PTFE on two Townies at a vacation house in Santa Cruz. Smooth, quiet and great shifting, on cheap components. Hmmm.. After my ride at home this morning, I put it on my recumbent. Gonna try this stuff on a bike with great cassette, gears, chain & derailleurs. I suspect I'll be thanking Patriot for a good tip. I'll let you know. bk