A folding bicycle comprises a bicycle frame 2, a cassette 5 comprising at least two sprockets and a derailleur assembly 8 attached to the bicycle frame 2. The derailleur assembly 8 comprises a guide pulley configured to interact with a chain, and a parallelogram derailleur configured to shift the guide pulley and chain between the at least two sprockets. The folding bicycle additionally comprises a chain tensioner arm 4 attached to the bicycle frame 2. The derailleur assembly and the chain tensioner arm are independently attached to the bicycle frame.
Chain tensioner
2024-04-24
Patent
Elektronische Ressource
Englisch