Aima Rocky

NEW: AIMA Rocky – Electric Mountain Bike (eMTB)

The AIMA Rocky Electric Mountain Bike is a powerful, trail-capable eMTB designed for riders who demand control, torque, and confidence across challenging terrain. Available at Bike Attack Electric in Santa Monica, the Rocky blends robust electric power with modern mountain bike geometry to deliver a capable and approachable ride for everything from fire roads and gravel climbs to technical off-road trails.

At the heart of the AIMA Rocky is a Bafang 750W brushless rear hub motor, providing strong, consistent power for steep climbs, loose surfaces, and long off-road rides. Paired with a high-capacity 48V 15Ah (720Wh) lithium-ion battery, the Rocky offers excellent range and dependable output for extended trail sessions without sacrificing balance or ride feel.

The customizable torque + cadence sensor system allows riders to fine-tune pedal assist behavior—offering a more natural, responsive feel on technical terrain or smooth, steady support for sustained climbs. This adaptability makes the Rocky suitable for both experienced mountain bikers and riders transitioning into eMTB riding.

Built around a 6061 single-butted aluminum alloy frame, the Rocky is engineered for durability, stiffness, and confident handling. The SR suspension fork with 100mm of travel, adjustable preload, and lockout absorbs trail chatter while maintaining efficiency on climbs and paved transitions. A Shimano CUES 9-speed drivetrain delivers reliable, trail-ready shifting designed to handle higher torque loads common with electric mountain bikes.

Traction and control come from 27.5” x 2.6” tires, offering an ideal balance of grip, rollover capability, and agility on dirt, gravel, and rocky terrain. Stopping power is handled by Tektro HD-E350 hydraulic disc brakes with large 203mm rotors, providing strong, consistent braking performance even on steep descents.

With a manageable overall weight and a rider-focused fit range, the AIMA Rocky is an excellent choice for riders seeking a capable, powerful eMTB that remains easy to control and confidence-inspiring on demanding trails.

Sizing

• One Size Fits Most: Riders approximately 5'4" – 5'10"

Key Specifications

• Frame: 6061 Single-Butted Aluminum Alloy

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

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

• Sensor System: Customizable Torque + Cadence Assist Modes

• 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

Why Buy the AIMA Rocky at Bike Attack Electric

• Professionally assembled by certified e-bike technicians

• Local warranty support and expert service in Santa Monica

• Ideal for mountain roads, gravel routes, and serious off-road terrain

• Powerful 750W motor with trail-ready components

• Test rides and expert fitting available in-store