Foldable and contracted to accommodate a variety of riding postures, height adjustable seat will fit all heights.Feature: The service cycle is determined by the using frequency and the user's weight. Brake Distance of 3m-5m depends on speed. 27.5 Inch eBike LED headlight Aluminum alloy frame Front and rear disc brake 21 speeds Easily removable Li-ion battery Easy height adjustments Easy assembly Specification: Power: 500W/48V high speed motor Battery: 48V/10Ah Lithium-ion Tyres: 27.5 Inch x 2.1 Inch Max Speed: 40km/h Max Range: 40km(Assist mode) Brake Type: front and rear disc brake Shifting: 21-speed Bicycle Weight: 24kg Load Capacity: 150kg Charging Time: 4 hours Package:137*23*73cm Packing weight:28kg Package: 1 x E-Bike 1 x Charger 1 x Assembly instruction *All dimensions are measured manually with a deviation of 2 to 4cm. Thank you for your understanding. *Please Read Our Disclaimer for E-Bike ProductsInstallation is required - but it's not complex. Please contact us if you need installation services. Services are provided to SYD/MEL/BNE Metro only. Additional fees apply.Due to photographic lighting and different devices used to view the displayed product, the colour you see may vary slightly from the actual colour of the product. Similarly, other slight variations may occur between the product displayed and the actual product.Friendly Reminder: Please try to keep your bicycle in a tidy and dry room after each ride. Especially when it has been used on a rainy or snow day, please clean it with a dry rag and keep it well maintained regularly. This is important if you'd like to get the most out of the bike. If your bicycle gets rusted, please use a dry rag to wipe it off. Then lightly apply lubricating oil to it. This will significantly improve the overall condition of the bicycle. Please well noted that the theoretical data here is for reference only. Actual data may differ according to different-weight of riders, speed modes, various terrains and riding slopes.