The indexed SHIMANOS rear derailleur combines with the micro-shift twists shifter to deliver 21 speeds on-demand for uphill Climbing, downhill riding, or pure acceleration; removable rear derailleur guard ensures consistent gear operation. Chainwheel: 170 three small sprocket.
31.8 Black Four Nail Combination. Brake: Tolan disc brake/MTB break lever. Product gross weight (kg/lb): 20kg/44. Product net weight (kg/lb): 18kg/39.6lbs. Product size (cm/in): Vehicle length: 170cm/67in, height 97cm/38.2in.Packing size (cm/in): 134x72x20cm / 52x28x7.5in. Whether it is foldable: yes. When the goods arrive, 85% of the bicycles have been assembled. You need to install the front wheels, pedals, handlebars, seats and inflate the tires. Before riding safely, make sure they are fully installed and secured. We do not provide any online paid or free bicycle assembly services. The bicycle installation instructions are included in the package, please read and adjust the brake and speed system carefully before installing the bicycle. All tools are included in the package, no additional tools.
Please wear a helmet and ride safely (the product does not include a helmet). Do not ride in bad weather such as snowing, raining, etc. Approximately applicable crowd height range: 160-185cm/5.2-6ft.