Germany’s Berner Bikes makes carbon fiber upgrade parts and accessories, carbon road and ‘cross frames and other bits. These replacement derailleur cages caught our eye despite having been available for a while now.
Available for SRAM Red, Shimano Dura-Ace mechanical and Di2, and Campagnolo Super Record, the carbon fiber cages use oversized 13t and 15t jockey wheels with slick bearings to reduce friction. You can order them as a hop up kit on its own, or as a complete derailleur. You can even send in your own and have them do the conversion for you. They even offer a Ceramic Speed bearing upgrade if you’ve got money burning a hole in your pocket.
The switch adds about 19g to the part, but they say it’s good for almost a six watt savings and that numerous pros are running them in the peloton. The Shimano Dura-Ace part’s shown above, click through for more pics and pricing…
The outer face of the Shimano part above, a converted SRAM Red derailleur below.
Prices range from €269 up to €659 depending on model and whether you’re ordering parts or a complete derailleur.