Folding bicycle

A folding bicycle comprising:

• a first frame section;
• a second frame section movably mounted to the first frame section so that the first and second frame sections may be moved relative to each other from an unfolded position to a folded position;
• a front wheel mounted to the first frame section;
• a rear wheel mounted to the second frame section;
• a chainset mounted to the first frame section and comprising one or more chain rings;
• a rear hub mounted to the second frame portion;
• a chain extending around and between the one or more chain rings and the rear hub;
• a chain retainer fixedly mounted to the first frame portion and defining a gap between the chainset and the chain retainer to maintain engagement between the chain and the chainset when the folding bicycle is in the folded configuration;
• wherein the first frame section is formed from a carbon material and a bracket is an integral moulded feature of the first frame section and further comprises one or more stiffening ribs between the bracket and the first frame section.

A folding bicycle comprising:

• a first frame section;
• a second frame section movably mounted to the first frame section so that the first and second frame sections may be moved relative to each other from an unfolded position to a folded position;
• a front wheel mounted to the first frame section;
• a rear wheel mounted to the second frame section;
• a chainset mounted to the first frame section and comprising one or more chain rings;
• a rear hub mounted to the second frame portion;
• a chain extending around and between the one or more chain rings and the rear hub;
• a chain retainer fixedly mounted to the first frame portion and defining a gap between the chainset and the chain retainer to maintain engagement between the chain and the chainset when the folding bicycle is in the folded configuration;
• a rear derailleur comprises a T-shape portion;
• wherein the rear derailleur is configured to receive a portion of the chain and provide tension to the chain when the folding bicycle is moved from the unfolded position to the folded position;
• and
• wherein the T-shaped portion of the rear derailleur further comprises an orthogonal projection for engagement with the chain.