Brompton C line 12 Speed Bumblebee Yellow Mid - M12L - RRP £1599 - Roller Rack

This is a Brompton C line 12 speed folding bike in bumblebee yellow, owned since June 2025 and used infrequently, so it's in excellent condition. The M12L sits in the middle of Brompton's range, offering more gearing options than the entry-level models while keeping the weight and fold size manageable for daily commuting and public transport use. It's the British-made steel folding bicycle that works well for anyone who needs to combine cycling with train travel, car boots, or tight storage spaces.

The steel frame uses Brompton's proven lateral fold, which compresses the bike into a compact package that fits under desks, in luggage racks, or against a wall. The 12-speed combination gearing gives flexibility across rolling terrain without the complexity of a derailleur system, so it handles both gentle London hills and the stop-start rhythm of urban cycling. The 16-inch wheels keep the bike agile in traffic and help with the tight fold, though they do need more pedalling effort to maintain speed on flat stretches compared to larger wheels.

Day to day, this folding bike is straightforward to live with. The steel frame feels solid and reliable, and Brompton's design means the fold becomes routine after a few uses. The original box is included if needed. For anyone looking at a used Brompton in this condition, get in touch with any questions about the bike's history or current state.