Big Sur Sport G2 20Ah
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AIMA ELECTRIC BIKES
Big Sur Sport G2 20Ah
Premium 500W Step-Through Fat Tire E-Bike
Meet the AIMA Big Sur Sport G2 20Ah, a premium compact step-through electric bike designed for comfortable commuting and recreation. Its Bafang 500W rear hub motor, 80Nm torque, 48V 20Ah removable battery and torque-sensing pedal assist deliver responsive everyday performance.

Performance at a Glance
500W Bafang Motor | 80Nm Torque | 960Wh Battery | Up to 140 km Estimated Range
Range is a manufacturer estimate at the lowest pedal-assist level under favourable conditions.
Designed for Comfort, Built for Performance
The Bafang G062 500W rear hub motor offers up to 80Nm torque. A Bafang torque sensor adjusts assistance to pedalling effort. The Zoom front suspension fork with 80mm travel and 20 × 4.0-inch fat tires help smooth uneven surfaces, while the step-through aluminum frame, ergonomic grips and comfortable saddle support an easy riding position.
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Brake Lights & Turn SignalsThumb-controlled turn indicators and active brake lights help communicate your intentions to other road users. |
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Bluetooth-Connected NavigationThe Bafang colour display supports smartphone-connected route guidance. This is not standalone anti-theft GPS tracking. |
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Removable 960Wh BatteryThe 48V 20Ah battery can be removed for convenient charging and secure indoor storage. |
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Bright Front LightingA 600-lumen integrated headlight helps illuminate the road and improve visibility. |
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Tektro Hydraulic BrakesTektro HD-E3520 hydraulic disc brakes with 203mm rotors deliver responsive, controlled stopping. |
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Refined Frame FinishSmooth, virtually invisible welds give the hydroformed aluminum frame a polished appearance. |
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Wide Comfort SaddleA wide, spring-supported saddle and relaxed riding position help make longer trips more comfortable. |
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MIK-HD Compatible Rear RackAttach compatible cargo accessories with a secure mounting system. Follow each accessory's rated load limit. |
Technical Specifications
| Component | Specification |
|---|---|
| Motor | Bafang G062, 48V 500W rear hub, up to 80Nm |
| Battery | Bafang BT F400, removable 48V 20Ah (960Wh) |
| Pedal assist | Bafang SR PA242 torque sensor, 5 levels |
| Throttle | Thumb-operated on-demand |
| Display | Bafang DP C010 colour TFT, Bluetooth navigation |
| Frame | Hydroformed aluminum step-through |
| Fork | Zoom, 80mm travel, lockout and preload adjustment |
| Brakes | Tektro HD-E3520 hydraulic disc, 203mm rotors |
| Drivetrain | Shimano 7-speed, Acera shifter, Altus derailleur, 11–34T |
| Tires | 20 × 4.0-inch fat tires with reflective side strips |
| Lighting | 600-lumen front light, rear running/brake lights, turn signals |
| Rear rack | MIK-HD compatible |
| Charger | AIMA 48V 3A |
| Listed weight | 74 lb (33.5 kg) |
| Maximum payload | 400 lb (180 kg), rider and cargo combined |
Manufacturer-Estimated Range
PAS 1: Up to 140 km | PAS 2: Up to 120 km | PAS 3: Up to 100 km | PAS 4: Up to 80 km | PAS 5: Up to 60 km
Manufacturer software estimates only. Actual range varies with terrain, temperature, speed, wind, tire pressure, rider/cargo weight and assist setting.
Shop at Richmond E-Bike
Professional e-bike sales and service for Richmond, Vancouver, Burnaby, Surrey, Delta and the Lower Mainland.
Richmond E-Bike Ltd.
Units 180 & 185 – 13988 Maycrest Way, Richmond, BC
Tuesday–Saturday, 9 AM–5 PM
Important Product & Safety Information
Specifications and colours may vary by production batch. The 400 lb payload includes rider and cargo; rack and accessory limits may be lower. Carry passengers only with manufacturer-approved equipment and where legally permitted. Estimated range is not guaranteed. Bluetooth navigation is not standalone anti-theft GPS tracking. Use the approved charger and follow the manufacturer's battery instructions. Confirm applicable BC e-bike classification and road-use requirements before riding.
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