• Smart app control & GPS tracking

• 52V 27AH battery with 140km range

• 20"x4.0" fat tires for stability

• LED lights & turn signals

• ⚙️ Shimano 7-speed & hydraulic brakes

• Compact design for urban riding

• 1. Smart Connectivity & App Control

The F20 features a 4G-enabled LCD display with Bluetooth connectivity, allowing remote interaction through the DUOTTS mobile app. Riders can use GPS tracking, geo-fencing, remote unlock, and navigation guidance for enhanced convenience and security during urban commutes.

• 2. High-Capacity Battery & Extended Range

Powered by a 52V 27AH battery using Dongci 21700 cells, this e-bike delivers up to 50-70 km in pure electric mode and 130-140 km in pedal-assist mode. The battery system supports long-distance riding while maintaining stable power output for daily use.

• 3. Stable 20x4.0 Inch Fat Tires

The 20x4.0 inch fat tires provide excellent traction and stability on various urban surfaces. Combined with a front suspension featuring 80mm travel, they ensure a comfortable ride while absorbing vibrations from uneven roads.

• 4. ⚙️ Precise Shimano Gearing & Hydraulic Brakes

Equipped with a Shimano 7-speed transmission for smooth gear changes and Zoom hydraulic disc brakes (180mm diameter) for reliable stopping power. The brakes include a power-cutoff safety feature that automatically disengages the motor when braking.

• 5. Enhanced Safety Lighting System

Features a vintage-style stainless steel headlight and high-brightness LED taillight with integrated turn signals and brake lights. This lighting system improves visibility during night riding and clearly communicates riding intentions to other road users.

• 6. Compact Frame & Practical Design

The aluminum alloy frame supports riders from 170-200cm tall with a maximum load capacity of 150kg. Measuring 1740mm in length with 760mm handlebars, the bike maintains a compact profile suitable for urban navigation and storage.

Note: Actual range, maximum speed, and climbing ability may vary depending on rider weight, terrain, temperature, wind speed, tire pressure, and riding habits.