Christoph Hopp from Berlin is the man behind the ultralight carbon parts from HOPP Carbon Parts. Christoph Hopp has been making the small, elegant parts for your bike by hand for several years. Wage of the effort can be a SRAM XX1 Eagel rear derailleur, which brings only 196 grams on the scales. This is achieved by the exchange of all aluminum parts, against the lightweight carbon pedants Hopp. Also for Scott Scale / Spark frame has the Berlin light train guides in carbon, which you can find in our shop.