Rock Machine Storm

Rock Machine Storm

  • Motor Type: Sport Drive mid-motor, delivering a powerful 90Nm for challenging terrains.
  • Battery Capacity: Fully integrated 500Wh battery, offering a range of up to 100km on a single charge.
  • Frame: Alloy Al-6061 T6 Custom Tubing with Fun Ride Geometry, ensuring durability and comfort.
  • Brakes: Tektro Hydraulic Disc Brakes, providing reliable stopping power in all conditions.
  • Tyres: 29 x 2.25" WTB Nineline Comp, equipped with reflective tape for added visibility and safety.

Our Verdict: The Rock Machine Storm INT e70-29 stands out as an ultimate electric mountain bike, offering an exceptional balance of power, range, and comfort for both daily commutes and adventurous off-road trips.

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Designed for adventurers and thrill-seekers, this bike is a testament to innovation in the world of electric mountain biking. At home both on and off the beaten path, the Rock Machine Storm blends power, durability, and cutting-edge technology to cater to riders who demand more from their outdoor pursuits. Whether you're a seasoned mountain biker or looking to dive into the excitement of off road electric bikes, the Rock Machine Storm offers a blend of performance and accessibility that sets it apart in a crowded market.

The Heart of the Storm

The Rock Machine Storm is not just an off road e-bike; it's a powerhouse on two wheels. At its core lies the Sport Drive mid-motor, boasting an impressive 90Nm of torque. This ensures that whether you're facing steep inclines or demanding trails, the Storm provides the seamless boost you need. Coupled with a fully integrated 500Wh battery, riders can explore up to a whopping 60 miles on a single charge, depending on usage and conditions. Such a bike really invites you to push your limits, explore further, and elevate your riding experience.

What sets the Storm apart is its unyielding focus on comfort and control. The bike's Fun Ride Geometry is engineered to make every journey, regardless of terrain, a comfortable adventure. It's all about finding joy in the journey, something that every design aspect of the Rock Machine Storm aims to deliver.

Components and Build

Every component of the Rock Machine Storm speaks to the meticulous attention to detail and the relentless pursuit of quality. From the strength and flexibility of the Alloy Al-6061 T6 Custom Tubing frame to the reliability of the Tektro Hydraulic Disc Brakes, this bike is built to withstand the rigours of the trail. The 29 x 2.25" WTB Nineline tyres provide a perfect balance between traction and speed, ready to tackle any terrain with confidence.

The integration doesn't stop at the motor and battery; the Storm boasts an advanced system designed to keep you in control. The Microshift Acolyte 1 x 8 drivetrain, paired with the intuitive display, allows you to easily navigate through power modes and keep an eye on battery life, blending technology with the pure, unadulterated joy of mountain biking.

Riding Experience

Getting on the Rock Machine Storm, you're immediately greeted with a sense of potential—an invitation to explore that's hard to resist. This bike is adept at shredding singletrack, climbing steep hills with ease, and hammering down descents with confidence. The front suspension fork, with its 100mm of travel, smoothens out the gnarliest of bumps, ensuring that your control and comfort are uncompromised.

But it's not just about hardcore mountain biking. The Storm is equally at home on a leisurely ride through the park or a daily commute. Its versatility lies in its design, capable of adjusting to your needs. Whether it's a serene ride at dusk or an adrenaline-fueled dash through the woods, the Storm is your steadfast companion, ready to 'send it' whenever you are.

Rock Machine Storm Tech Specs

Make and Model Rockmachine Storm INT e70-29 Mens Electric Mountain Bike
Frame Alloy Al-6061 T6 Custom Tubing, Smooth Welding, Fun Ride Geometry, Sport Drive MID Motor Integration, OLD 135x9, Disc Brake Post Mount, Fender and Kickstand Ready Dropout, Replaceable RD Hanger, Inner Cable Routing
Motor Sport Drive MD250S, 36V, 250W, 85Nm, Middle Drive Unit
Battery Sport Drive, 36V, 500Wh, Integrated, Recharge Time: 4 hours
Max Support Speed 25 km/h
Display Sport Drive Grip Display
Charger Sport Drive standard charger, 36V/2A
Distance Range Up to 100 km (1st level of support)
Gears Microshift Acolyte 1 x 8, 38 x 11-36
Shifter Microshift Acolyte 1 x 8
Front Derailleur N/A (1x drivetrain)
Rear Derailleur Microshift Acolyte 1 x 8 with Clutch
Crankset Wheel Top ED2L, 38T
Cassette Black Wide Range 8 Speed 12 – 42T
Chain KMC e9S
Brakes Tektro Hydraulic Disc – 160/160 rotor
Fork Zoom 595S AMS HLO, 1-1/8", Coil, QR Type, Lockout, 100 mm travel
Wheels WTB SX19, 32H
Tyres WTB Ranger 29 x 2.25, Black with Reflective Tape
Handlebar ONE1 Alloy, MTB AL-325BT, 720mm, 31.8mm
Stem ONE1 TDS-C342 Alloy, 31.8xE45mm, +3°
Saddle Wtb Volt Sport
Seatpost ONE1 Alloy, SPS 405
Pedals Marwi SP-827 Sandblock Non/slip
Weight Approx. 23.2kg
Colour Gloss Red/Black/Silver
Special Features Mudguard and Pannier Mounts, Removable Battery, Lockable Suspension Fork


Riders who've taken the Rock Machine Storm for a spin unanimously praise its capability and comfort, highlighting its seamless gear changes, robust power assistance, and remarkable battery life. One shared, "It's like having a silent, powerful force propelling you forward, making every ride an exhilarating journey." Another noted the bike's versatility, sharing how it effortlessly transitioned from city commuting to weekend trail riding. The Rock Machine Storm is an electric mountain bike that delivers on its promise of adventure, performance, and fun, earning it glowing recommendations from a community of passionate riders.