Brompton presented a prototype 12 speed C-Line Electric in Frankfurt this summer. Let’s review this new gearing setup. 00:00 Eurobike 2023 00:24 Dual Drive 12 Speed gearing 01:02 Gear overlap 01:19 Chainring 02:29 Alternative 12 Speed setup 02:40 Conclusion References: YouTube: Eurobike 2023: Neuheiten von Brompton | 12-Gang Variante und Farbupdates https://youtu.be/T5-p0PoVVtg?si=IW4S36gGxhY7qCzI Reddit: https://www.reddit.com/r/Brompton/comments/14irhta/brompton_eurobike23_frankfurt_new_parts_for/ Music: The Day is Close - The 126ers #brompton #2bikes4adventure