Aima Big Sur Sport 2.0 - 20"

NEW: Aima Big Sur 2.0 20" - Electric Fat Bike

The AIMA Big Sur 2.0 20" Electric Fat Bike at Bike Attack Electric in Santa Monica is built for riders who want confident power, comfort, and all-terrain versatility in a compact, approachable format. Designed to handle city streets, beach paths, gravel roads, and light off-road terrain, the Big Sur 2.0 delivers a stable, planted ride with serious electric performance.

Powered by a Bafang 750W rear hub motor, this fat tire e-bike provides strong acceleration and consistent torque for hills, headwinds, and heavier loads. The high-capacity 48V 20Ah (960Wh) lithium-ion battery offers impressive range, making it ideal for longer commutes, weekend adventures, or all-day cruising without range anxiety.

A customizable torque + cadence sensor system allows riders to tailor pedal assist behavior to their riding style—whether you prefer a natural, responsive feel or smooth, steady support. The 20” x 4.0” fat tires enhance traction, stability, and comfort across sand, pavement, dirt, and uneven surfaces, while keeping the bike nimble and easy to manage.

Comfort and control are further enhanced by a ZOOM suspension fork with 80mm of travel, adjustable preload, and lockout, helping absorb bumps while maintaining efficiency on smooth roads. Reliable stopping power comes from Tektro HD-E350 hydraulic disc brakes with oversized 203mm rotors, delivering confident braking in all conditions.

With a wide rider fit range and thoughtful component selection, the Big Sur 2.0 is an excellent choice for commuters, recreational riders, and anyone seeking a powerful, easy-to-ride fat tire electric bike in a compact 20" wheel platform.

Sizing

• One Size Fits Most: Riders approximately 5'0" – 6'3"

Key Specifications

• Frame: 6061 Single-Butted Aluminum Alloy

• Motor: Bafang 750W, 48V Brushless Rear Hub Motor

• Battery: 48V 20Ah (960Wh) Lithium-Ion

• Sensor System: Customizable Torque + Cadence Assist Modes

• Drivetrain: Shimano Altus 7-Speed

• Brakes: Tektro HD-E350 Hydraulic Disc Brakes, 203mm Rotors

• Fork: ZOOM Suspension Fork, 80mm Travel, Adjustable Preload & Lockout

• Tires: 20" x 4.0" Fat Tires

• Saddle: AIMA Comfort Saddle

• Weight: Approx. 77 lbs

Why Choose the AIMA Big Sur 2.0 20"

• High-power 750W motor for hills and cargo

• Large 960Wh battery for extended range

• Fat tires for stability, comfort, and confidence on mixed terrain

• Compact 20" wheel size for easy handling and mounting

• Ideal for commuting, beach riding, gravel paths, and urban exploration