• 【Ultra-Long Range Up to 170 km with Integrated Dual Battery System】

The DUOTTS C29-K is designed for long-distance riding, featuring a high-capacity 48V battery system that delivers up to 150–170 km range in pedal assist mode. Unlike traditional dual-battery setups, both batteries are seamlessly integrated—no need to carry or swap extra batteries during your ride.

• 【Dual Chargers for Faster and More Convenient Charging】

Equipped with two chargers, the C29-K allows simultaneous charging of both batteries, significantly reducing total charging time and making preparation for long trips easier and more efficient.

• 【29-Inch Wheels for Stability and Comfort on Long Rides】

Large 29 × 2.125 inch tires offer excellent rolling efficiency, stability, and comfort, making the bike ideal for extended journeys on city roads, bike paths, and light gravel surfaces.

• 【Reliable Shimano Tourney 21-Speed Drivetrain】

The 3×7-speed Shimano Tourney transmission provides smooth gear changes and flexibility across different terrains, ensuring comfortable cadence control during climbs and long-distance cruising.

• 【Smart LCD Display with Bluetooth Connectivity】

The 2.4-inch EU-standard LCD display shows speed, distance, battery level, and riding mode at a glance. Bluetooth support allows connection to the DUOTTS APP for enhanced riding data and control.

• 【Technical Specifications】

Product Name: DUOTTS C29-K Electric Bicycle
Frame Material: Aluminum alloy
Wheel Size: 29 × 2.125 inch tires
Motor Torque: 65 Nm
Sensor Type: Speed sensor
Drivetrain: Shimano Tourney, 3×7 speeds
Brake System: Hydraulic disc brakes
Double Battery: 48V 15Ah + 48V 22.5Ah Dongci 21700
Charger Options:
54.6V 2A (7–8 hours)
54.6V 3A (6–7 hours)
Display: 2.4-inch LCD/Three-button control/Bluetooth supported
Factory Top Speed: 25 km/h
Max speed after adjustment: 45–50 km/h
Range: 150–170 km (pedal assist mode)
Climbing Ability: Up to 30° (moderate urban slopes)
Waterproof Rating: IPX4 (rain splash resistant)
Rider Height: 170–200 cm
Maximum Load: 150 kg
Saddle Height: Adjustable, 85–103 cm
Net Weight: Approx. 32.5 kg
Gross Weight: Approx. 40 kg
Product Dimensions: 1860 × 1080 × 680 mm
Package Dimensions: 1480 × 240 × 790 mm

• 【Packing List】

2 * Charger(s)
1 * User manual
1 * 16-in-1 tool
1 * Motor axle protectors
1 * Air pump
1 * Phone bag