The Big Sur 2.0 builds upon the original Big Sur platform with several
significant upgrades, including:
- Larger 48V 20Ah (960Wh) battery
- Updated BAFANG smart drive system
- Torque and Cadence Sensor modes
- BAFANG Go App connectivity
- Apple Find My compatibility
- Integrated navigation functionality
- Enhanced ride customization options
- Improved performance and extended range
These upgrades provide greater versatility, longer range, and a more
connected riding experience.
The Big Sur 2.0 is equipped with a high-capacity 48V 20Ah (960Wh) battery.
Actual range depends on rider weight, terrain, assist level, throttle usage,
weather conditions, tire pressure, and cargo load.
Under typical riding conditions, riders can expect up to 75 miles of range
on a full charge.
The Big Sur 2.0 features a removable 48V 20Ah (960Wh) lithium-ion battery integrated into the frame.
The battery can be charged either while installed on the bicycle or removed for charging indoors.
Yes.
The battery is removable and lockable for convenient charging,transportation, and storage.Alwaysuse the supplied charger or an approved replacement charger.
Under normal conditions, the Big Sur 2.0 battery typically requires approximately 7–8 hours to fully charge.
Charging time may vary depending on battery condition and ambient temperature.
The Big Sur 2.0 is powered by a 750W BAFANG rear hub motor designed to
provide strong acceleration, reliable hill-climbing capability, and smooth power delivery across a variety of riding conditions.
Yes.
The Big Sur 2.0 is equipped with a torque sensor and allows riders to
select between Torque Mode and Cadence Mode riding experiences.
Torque Mode provides motor assistance based on rider pedal effort for a more
natural feel, while Cadence Mode delivers a more relaxed riding
experience with consistent assistance.
This flexibility allows riders to choose the riding style that best suits
their preferences and conditions.
- Navigation
- Apple Find My setup
- Call notifications
- Text notifications
- Ride records
- Battery information
- Display settings
Yes.
The Big Sur 2.0 allows riders to customize various ride settings through
the display and BAFANG Go App, including:
- Pedal assist characteristics
- Assist level behavior
- Speed settings
- Ride data tracking
- Navigation features
- Battery monitoring
Available functions may vary depending on software version and local regulations.
Yes.
The Big Sur 2.0 comes equipped with:
- Integrated front headlight
- Rear tail light
- Brake light function
- Turn signals
- Electronic horn
These features help improve rider visibility and safety in traffic.
The Big Sur 2.0 is delivered as a Class 2 eBike with a top assisted speed of 20 MPH.
Depending on local regulations and dealer configuration, certain models may support Class 3 pedal-assist operation. Please contact your authorized AIMA dealer for details.
The Big Sur 2.0 is designed to support a maximum payload capacity of 400 lbs (181 kg), including the rider, cargo, and accessories.
The Big Sur 2.0 is designed to fit riders approximately 5'2" to 6'2".
Please visit your authorized dealer for a professional fit recommendation.
The Big Sur 2.0 is equipped with TEKTRO hydraulic disc brakes and oversized 203 mm brake rotors to provide strong and consistent braking performance.
Yes.
The Big Sur 2.0 is designed for mixed-terrain riding and performs well on:
- Pavement
- Gravel roads
- Dirt paths
- Light off-road trails
Its 26" × 4" fat tires and suspension fork provide excellent comfort, traction, and stability.
The recommended tire pressure range is printed on the tire sidewall.
For maximum efficiency on pavement, riders typically use higher tire pressures. For improved comfort and traction on dirt, gravel, or uneven terrain, lower tire pressures may be appropriate.
Always remain within the pressure range specified on the tire.
Because the Big Sur 2.0 uses large 26" × 4" fat tires and heavy-duty wheels, spoke tension should be inspected periodically.
AIMA recommends having spoke tension checked during routine service and after the first 100 miles (160 km) of riding.
If you notice loose spokes, wheel wobble, or unusual noises, contact your authorized AIMA dealer for inspection.
To help ensure safe operation and long-term reliability, Big Sur 2.0
owners should regularly inspect:
- Tire pressure and tire condition
- Brake pad wear
- Brake rotor condition
- Spoke tension
- Crank arm tightness
- Front wheel retention hardware
- Chain lubrication
- Suspension fork condition
- Battery mounting and security
AIMA recommends having the bicycle professionally inspected by an authorized dealer after the first 100 miles (160 km) of riding and periodically thereafter.
Your first point of contact should always be your authorized AIMA dealer.
Authorized dealers are trained to diagnose and resolve most service and warranty concerns and can work directly with AIMA when additional support is required.
If you are unable to contact your dealer, please contact AIMA Customer Support: info@aimausa.com
The Big Sur 2.0 is backed by AIMA's 2-Year Limited Warranty covering defects in materials and workmanship under normal use and maintenance.
Warranty claims should be initiated through an authorized AIMA dealer.
AIMA provides warranty support through its dealer network, while certain service procedures, labor charges, and dealer-specific service programs may vary by dealer.
Please contact your authorized dealer for warranty-related assistance and coverage details.



















