This product is City bike ZX  

1) Purpose: For transporting and delivering mail on paved and unpaved roads.
2) Wheel Size: 26–28 inches, double-layered shock-resistant aluminum alloy rims.
3) Handlebars: Aluminum alloy, steerable.
4) Display: LCD display showing speed, mileage, remaining range, PAS assist adjustment, reset, and lighting functions.
5) Motor Power: Not exceeding 250W.
6) Gears: At least 7 gears.
7) Transmission System: At least 7 speeds.
8) Freewheel: 7 speeds.
9) Motor Type: Brushless high-speed geared hub motor.
10) Battery Voltage: Not less than 36V.
11) Battery Capacity: Not less than 10Ah.
12) Charging Time: No more than 6 hours.
13) Range (PAS Assist Mode): No less than 60 kilometers.
14) Maximum Speed: No more than 25 km/h.
15) Maximum Load: No less than 120 kg.
16) Riding Modes: Pure Electric Mode / Assist Riding Mode / Pedal Riding Mode.
17) Frame Size: 16–18 inches, women's model.
18) Chain: Corrosion-resistant chain.
19) Frame Material: Steel.
20) Front and Rear Lights: LED front and LED taillights.
21) Fenders: Steel or plastic with mudguards.
22) Pedals: Aluminum alloy.
23) Braking System: Front and rear mechanical disc brakes.
24) Wheels: Double-layer aluminum alloy wheels.
25) Bottom Brake: Sealed, waterproof, square-hole bottom bracket.
26) Controller: Sine wave intelligent controller.
27) Throttle: Throttle type.
28) Bike Weight: Not exceeding 25 kg.
29) Front Basket: Mounted on the handlebars and fork, dimensions not exceeding 350×250×220 mm, steel.
30) Rear Box: Plastic or light alloy material, dustproof and waterproof; built-in lock with 2 keys; universal mounting bracket; dimensions not less than 40×27×25 cm; color: dark blue (Pantone 2728C).
31) Color: Dark blue (Pantone 2728C).
32) Identification: The frame will be printed with the manufacturer's name and logo. This can be done by spray painting or waterproof stickers; the final design will be confirmed by the purchaser.
33) Configuration: Manual air pump, mechanical bell, anti-theft lock, tool kit, reflectors (white front, red rear, yellow wheel sides), plus a spare tire and inner tube.