Jun 22, 2021 11:00:15 PM Lennard Zinn Share: facebook-f icon linkedin-in icon Twitter icon pinterest-p icon envelope icon What you'll need to increase gear size — and rear derailleur tooth capacity — for Campy, Shimano, or SRAM drivetrains. Read the full article at Technical FAQ: Options for increasing rear derailleur capacity on VeloNews.com. velonews, ask lennard zinn, technical q&a, technical faq, lennard zinn