Urban Electric Commuter Bike A7 Pro 500W Torque-Sensing Mid-Motor Equipped with a responsive torque-sensing mid-motor, the A7 Pro offers swift, powerful ascents and quick starts, ideal for challenging terrains. 500 W Mid-Drive Motor 130 Nm Torque Fusion Tech Superior Craftsmanship for Elite Performance Seamlessly integrates mountain bike technology into city bikes, enhancing comfort and safety, and providing a smoother ride by effectively absorbing shocks and reducing vibrations. 300 lb Capacity 72 lb with Battery Long Range Ebike Expert 720Wh High-Efficiency Battery High-capacity 720Wh LG battery, 48V 15Ah, detachable and built with durable 21700 Li-ion cells for extended range and performance 90kms Per Charge (maximum) Enhanced Safety Auto-Illuminating Brake Light Frame-integrated taillights illuminate automatically upon braking, enhancing safety and visibility for night riding. Shimano 9 Speed Gear Shift System Versatile shifting for optimal control in diverse riding conditions, complemented by a responsive pedal-assist system to tailor your ride perfectly. Shimano Hydraulic disc brake Exceptional, lasting stopping power with minimal maintenance for safer, cost-effective riding. Hydraulic Braking 180mm Disc brake ABUS Lock Secure with a Click Robust, integrated rear-wheel lock for enhanced security. Designed for theft deterrence and resilience against daily wear and extreme weather. Thumb Throttle Enhanced control and quicker response with a safer, more efficient brake-throttle separation, ideal for navigating busy streets LCD Display The Backlit LCD display offers essential ride data, including speed, distance, and battery level, at a quick glance 48V High-brightness Front Light Enhances visibility and safety, illuminating the path ahead to better reveal unforeseen road conditions. Control Ergonomic design tailored for the superior ride of the A7 Pro, featuring an air-adjustable seat post for enduring comfort. Elite Comfort Saddle Ergonomic design tailored for the A7 Pro's superior ride, featuring an air-adjustable seat post for enduring comfort MIK Rack Modular Cargo System for Versatility. A -- total length 76" B -- handlebar height 44" C -- handlebar length 27.2" D -- wheelbase 48 E -- wheel diameter 28.1" F -- minimum seat height 24" G -- maximum seat height 28.7" H -- chain stay length 19.3" I -- frame stack 19.2" K -- effective top tube length 24" Specifications Frame 6061 Aluminum frame Fork SR-SUNTOUR X1-BOOST 120mm travel Front wheel Rim: DM-350 27.5""*13G*36H SV | Spoke: 13G 263L STAINLESS(304M) | Hub: DM41SB-B15 13G*36H*110 Tires SCHWALBE SUPER MOTO-X 27.5*2.4 Motor ANANDA M100 48V-500W mid-drive motor Throttle Thumb throttle Crankset Crank arm: PROWHEEL A00C 170mm 44A-S2-CL41 BCD104 | Chain ring: PROWHEEL 44T 104BCD Narrow wide chainring Chain KMC E9 120L Front brake Shimano MT200 hydraulic brake RotorsShimano RT26 F:180mm R:180mm Headset TOPYCWZ-5662-01 52*52*39.8 ShockDNM AO-06 /165*38mm BK Rear wheel Rim: DM-350 27.5"*13G*36H SV | Spoke: 13G 265L STAINLESS(304M) | Hub: M102R-148 12*13*36*148 Battery Samsung/LG 48V 15Ah Display BIGSTONE M300C-TFT Sensors Torque sensor丨shifting sensor丨speed sensor丨brake sensor Cassette Shimano CS-HG201-9 11-34T Groupset Shimano M3100SGS ALIVO-9S Rear brake Shimano MT200 hydraulic brake ComponentsStem Promax Alloy ssabk Seatpost ESP-AD635 31.6*350mm | travel:100mm Pedal Aluminum pedal Kickstand Heavy-duty aluminum kickstand Handlebar MTB-AL-325BT/Φ31.8*/W:680/6° Saddle DDK 153MF Lights 48V LED light Others Range 35~50 miles Charger US standard 2.0 A smart charger Controller 48V/22A Rider height 5'3" ~ 6'5" Max. system weight 300 lb.