Zipp Carbon SL Speed Carbon Fiber Water Bottle Cages I am selling a pair of used, but still in good shape, Zipp Carbon SL Speed Carbon Fiber Water Bottle Cages. Each of these retailed for nearly $100 and I am selling the pair for $50 cash (no electronic payments.) They do have scratches from use but I have not found any soft spots or areas of concern. They weigh 18 grams per cage! Let me know if you have any questions. Also, these came off of a bike that I bought so I don’t know their age.