To avoid infringing all the patents which Shimano and Campagnolo (and to a lesser extent SRAM) have on both electronic and mechanical cable shifting mechanisms.
This^
Better than cables maybe. But it can't touch electronic.
@Smallfurry started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
To avoid infringing all the patents which Shimano and Campagnolo (and to a lesser extent SRAM) have on both electronic and mechanical cable shifting mechanisms.