Menu

Rear derailleur

  • By Caley Fretz
  • Published Apr. 17, 2012
<< Back to StoryOpen full size in new window.
Ultegra Di2 rear derailleur: 271 grams. Photo: Caley Fretz

Ultegra Di2 rear derailleur: 271 grams. Photo: Caley Fretz

Stay updated on all things VeloNews

Subscribe to the FREE VeloNews newsletter