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The Aima Big Sur Sport 2.0 is a compact fat tire electric bike built for riders who want the comfort and traction of a fat-tire platform in a smaller, more agile package. With 20" x 4.0" tires, a 750W Bafang rear hub motor, 1200W peak power, and 85Nm of torque, it is well suited for neighborhood cruising, local commuting, campground riding, and mixed-surface recreation. Its smaller wheel size helps keep the ride approachable while still delivering the stable feel many riders want from this category.
The Big Sur Sport 2.0 has some really nice features. It uses a larger 48V 20Ah battery, a customizable pedal sensor with torque and cadence modes, integrated lighting with turn signals and horn, and a Bafang TFT display with smart functions including FindMy, navigation, calls, and notifications. The bike also keeps practical features like hydraulic disc brakes with 203mm rotors, an 80mm suspension fork with lockout, and a 400-pound payload capacity, making it a strong option for riders who want more technology and range in a compact fat-tire e-bike.
The Big Sur Sport 2.0 is a strong fit for riders who want a smaller fat-tire bike that still feels substantial, capable, and well-equipped. It works especially well for shorter to mid-height riders, urban riders who value visibility features, and shoppers who want a fun, easy-to-handle e-bike with longer range and more built-in tech. Easily suits most adults.
Verified Specs
- Motor: Bafang 750W rear hub motor
- Peak power: 1200W
- Max torque: 85Nm
- Top speed: 20 mph
- Battery: Removable internal lithium-ion 48V 20Ah (960Wh)
- Range: 40 to 75 miles
- Throttle: Throttle on demand
- Pedal sensor: Customizable torque and cadence modes
- Pedal assist: 5 PAS levels
- Charger: 48V 3 Amp fast charger, 7–8 hours to full charge
- Frame: 6061 single-butted aluminum alloy frame
- Bike weight: 77 lbs.
- Fork: ZOOM suspension fork, 80mm travel, adjustable preload, lockout
- Brakes: Tektro hydraulic disc brakes, 203mm rotors
- Drivetrain: Shimano 7-speed
- Derailleur: Shimano 7-speed
- Cassette: 7-speed, 11-28T
- Crankset: 160mm with 52T chainring
- Tire size: 20" x 4.0"
- Lighting: Integrated headlight, tail lights, and turn signals with horn
- Display: Bafang E-system TFT display
- Smart functions: FindMy, navigation, calls, notifications
- Payload capacity: 400 lbs.
- Certification: UL 2849 compliant
- Rider fit: One size, 5'0" to 6'3"
