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20×4.0" fat tires balance comfort, agility, and control.
Compact geometry for every rider.
Comfort XL saddle makes every ride easier.
One Size
Premium components chosen for everyday confidence.
Smooth assistance with proven reliability.
203mm rotors for confident stopping.
MIK rack and UL2849 certified.
Visit your local AIMA dealer and experience Big Sur Sport for yourself.
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The Big Sur Sport is designed for riders who prefer a more compact, maneuverable, and approachable fat-tire eBike.Compared to the standard Big Sur, the Big Sur Sport features:
The Big Sur Sport retains the comfort, stability, and all-terrain capability of the Big Sur while offering a more agile riding experience.
The Big Sur Sport is ideal for riders looking for:
Its smaller wheel size and lower center of gravity make it especially approachable for newer riders and those who prefer a more nimble ride.
The Big Sur Sport is a fat-tire all-terrain eBike designed for:
Its 20" × 4" fat tires provide excellent traction, comfort, and stability across a variety of riding conditions.
The Big Sur Sport 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 be configured for Class 3 pedal-assist operation.
Please contact your authorized AIMA dealer for details.
Actual riding range depends on rider weight, terrain, tire pressure, weather conditions, assist level, throttle usage, and cargo load.Under typical riding conditions, riders can expect up to 60 miles of range on a full charge.
The Big Sur Sport is equipped with a 750W BAFANG rear hub motor designed to provide strong acceleration, reliable hill-climbing performance, and smooth power delivery.
The Big Sur Sport features a torque sensor.
A torque sensor measures rider pedal input and provides motor assistance proportionally, resulting in a smoother, more natural riding experience and improved efficiency.
The 20" × 4" fat tires provide several benefits:
These characteristics make the Big Sur Sport particularly well suited for urban riding and recreational use.
Many riders find the Big Sur Sport easier to handle because of its smaller wheels, lower center of gravity, and more compact frame design.
This makes it an excellent option for riders seeking confidence, comfort, and maneuverability.
The Big Sur Sport is designed to support a high payload capacity suitable for riders, cargo, and daily transportation needs.
Please refer to the product specifications page or contact your authorized AIMA dealer for the latest payload information.
Yes.The Big Sur Sport's compact dimensions and 20-inch wheel platform make it a popular choice for RV owners, campers, and riders with limited storage space.
Its fat tires and powerful motor also make it well suited for campground roads, gravel paths, and recreational exploration.
Yes.The Big Sur Sport features a removable battery that can be charged either on or off the bicycle.
Always use the supplied charger or an approved replacement charger.
This section allows you to give an in-depth explanation, including step-by-step guidance, specific product details, or policy clarifications, ensuring customers get a complete answer to their question without confusion.
Under normal conditions, the battery typically requires approximately 5–8 hours to fully charge.
Charging time may vary depending on battery condition and ambient temperature.
Yes.
The Big Sur Sport is designed to withstand normal riding conditions, including light rain and wet roads.
However, the bicycle should never be submerged in water or cleaned using a high-pressure washer.
After riding in wet conditions, dry the bicycle and electrical components as soon as possible.
The Big Sur Sport is equipped with TEKTRO hydraulic disc brakes designed to provide strong and consistent braking performance across a variety of riding conditions.
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, sand, or uneven terrain, lower tire pressures may be appropriate.
Always remain within the pressure range specified on the tire.
Because the Big Sur Sport uses 20" × 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 Sport owners should regularly inspect:
AIMA recommends having the bicycle professionally inspected by an authorized dealer after the first 100 miles (160 km) of riding and periodically thereafter.
