Aima Rocky

NEW: AIMA Rocky Electric Mountain Bike

The AIMA Rocky Electric Mountain Bike at Bike Attack is a trail-ready electric mountain bike designed for riders seeking reliable power, controlled handling, and versatility across mountain roads, gravel paths, and off-road terrain. Built with durable components and a balanced geometry, the Rocky is well suited for recreational trail riding and mixed-surface use.

The bike is powered by a Bafang 750W brushless rear hub motor, paired with a 48V 15Ah (720Wh) lithium-ion battery, providing consistent pedal assistance across varied terrain. A customizable torque + cadence sensor systemallows the rider to choose between a more responsive or smoother assist feel depending on terrain and riding preference.

A 6061 single-butted aluminum alloy frame offers durability and stiffness, while the SR suspension fork with 100mm of travel, adjustable preload, and lockout helps absorb trail impacts and improves control on uneven surfaces. The Shimano CUES 9-speed drivetrain is designed to handle higher torque loads typical of electric mountain bikes.

Braking performance is handled by Tektro HD-E350 hydraulic disc brakes with 203mm rotors, delivering consistent stopping power on descents and technical sections. 27.5” x 2.6” tires provide a balance of traction, stability, and maneuverability for gravel, dirt, and rocky terrain.

Estimated Range

• Up to approximately 25–60 miles, depending on rider weight, terrain, assist level, and riding conditions

E-Bike Class Designation

• Class 2 e-bike

  • Pedal assist

  • Throttle assist

  • Motor assistance up to 20 mph

Riding Modes

• Multiple pedal assist levels

• Torque-based assist mode for responsive trail riding

• Cadence-based assist mode for smooth, consistent support

• Throttle function (where permitted by local regulations)

Sizing

• One Size: Recommended rider height 5'4" – 5'10"

Specifications

• Frame: 6061 Single-Butted Aluminum Alloy

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

• Battery: 48V 15Ah (720Wh) Lithium-Ion

• Sensor System: Torque + Cadence (Selectable)

• Drivetrain: Shimano CUES 9-Speed

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

• Fork: SR Suspension Fork, 100mm Travel, Adjustable Preload & Lockout

• Tires: 27.5" x 2.6"

• Saddle: AIMA Performance Saddle

• Weight: Approx. 64.5 lbs

Assembly & Support

• Professionally assembled and inspected prior to delivery

• Local service and warranty support available through authorized retailers