Model: Big Sur
Year: 2025
Price: $1,999
Weight: 82 lbs
Weight Limit: 60 lbs
Battery Capacity: 720 W
Battery Details: LG M50LT 21700 cells, 48V, 15Ah (720Wh), UL-rated
Battery Removable: Yes
Motor Watts: 750 W
Motor Torque: 90 Nm
Motor Details: Bafang
Top Speed: 28 MPH
Motor Peak Wattage: 1300 watts
Class: Class 3
Frame Style: Standard
Folding: No
Riding Position: Upright
Saddle: Comfort
Pedal Assist Sensors: Torque
Throttle: Thumb throttle
Display: Bafang TFT LCD display, center mounted, USB-A charging port
Lighting: Oversized front light, rear tail light
Signalling: Rear tail light functions as brake light, rear reflector
Front Suspension: Front coil suspension, 80mm travel, adjustable preload, lockout
Speeds or Gears: 8
Gearing: Shimano Altus derailleur, 8-speed 11x34 tooth cassette, 52T chainring, chain guard
Shifter: Shimano thumb and trigger shifter
Brakes: Tektro hydraulic brakes, 203mm brake discs front and rear
Wheel Diameter: 26 inches
Tire Width: 4 inches
Tires: Puncture-resistant fat tires, brown walls, reflective strips
Fenders: Full
Cargo Capacity: 60 pounds
The AIMA Big Sur is a class 3 fat tire e-bike designed for road and light off-road use. It features a 750W motor, 26" x 4" puncture-resistant fat tires, and a 48V 15Ah (720Wh) LG battery with UL-rated safety. The e-bike includes a Bafang TFT LCD display, Tektro hydraulic brakes, Shimano 8-speed drivetrain, torque sensor, and comfort features like an oversized seat and ergonomic grips. Accessories include plastic fenders, an MIK HD rear rack, and a quick-release motor cable. The model is sold direct-to-consumer and balances comfort, performance, and safety.
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The Freshly Charged Take
The AIMA Big Sur is a class 3 fat tire e-bike, featuring a robust 750W motor, 28 mph top speed, and a high-capacity 48V 15Ah battery. With natural-feeling torque sensor pedal assist, front coil suspension, and quality Shimano/Tektro components, it excels on both roads and light off-road. It's heavy but comfortable, making it a strong value choice.
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