ROCK MACHINE Storm INT e90-29 Lady touring
Modern women's electric bike with a lightweight aluminium frame for easy handling. Equipped with a high quality mid-motor and long lasting battery. Includes mudguards, rack, lights, kickstand and lock.
SPORT DRIVE MD250S
90 Nm
SPORT DRIVE, 504 Wh
8 speeds
29"
100 mm (front)
RockShox Judy Silver TK, 100 mm
Lightweight and responsive suspension fork for XC and eMTB. With 100mm of travel, crown locking and proven TurnKey technology, it's ideal for comfortable off-road and trail riding. The air spring makes adjusting suspension stiffness extremely easy.
Block Lock head assembly protects against damage to the frame by the handlebars during a fall
E-bike range calculator
The e-bike range is approximately
*Factors affecting total range include assist mode settings, technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique
ROCK MACHINE Storm INT e90-29 lady touring is a modern ladies electric bike. It stands out above all with its new lightweight aluminium frame, which has been renovated and improved to make the e-bike light and easy to handle.
The e-bike will offer the popular Fun Ride geometry, which adds more comfort and control. The Storm INT e90-29 lady touring is a full-featured e-bike for long trips on foamy trails and light off-road terrain. With a powerful 90Nm Sport Drive mid-motor and 504Wh battery, you'll go seriously far (depending on terrain, natural conditions and riding characteristics). The motor is equipped with a torsion sensor that delivers assistance depending on how hard you pedal - it helps significantly more on hills than on flat ground. The battery is fully integrated and fits perfectly into the overall design. Right at your fingertips you'll find the Sport Drive KD718 control unit with USB connector, which shows you the battery level or current speed.
Comfort is ensured by the ONE 1 suspension seatpost in conjunction with the RockShox Judy Silver TK suspension fork with 100 mm of travel. Precise shifting with the microSHIFT 1x8 system and lightning-fast stopping with Alhonga brakes. The bike is fully equipped with mudguards, rack, lights, kickstand and a handy AXA lock. In terms of additional comfort, you'll appreciate the Block Lock head tube that protects against frame damage from falling handlebars and the WTB Nineline Comp 29x2.25" tyres with reflective stripe.
Need help choosing the right e-bike? Use our guide to choosing an e-bike or contact us directly.

Central motor DAPU MD250S
The MD250S excels with a high torque of up to 95Nm, thanks to which it offers a ride, with a sufficient reserve of power, even in the most difficult terrain. The compact dimensions and minimalist design of the MD250S motor allow elegant installation in the frame, which does not disturb the visual appearance of the entire e-bike.
It offers 250 W / 350 W power, an integrated well-tuned control unit and excellent efficiency (more than 80 %), thanks to which it achieves an exceptional range value on a single charge. When driving, you will appreciate not only the performance, but also the exceptionally quiet operation. Even on the steepest climbs, the DAPU motor will help in a very significant way.

Battery Sport Drive 504 Wh (14 Ah)
Fully integrated battery with the 4th generation Sport Drive system. The battery has a capacity of 504 Wh. At the same time, it's still easily removable so you can charge it separately if needed.
It is equipped with a BMS board (Battery Management System) that protects it from overheating, short-circuiting or overcharging. The battery can be charged directly in the frame of the e-bike, or it can be removed for charging. You can travel up to 100 km on a single charge (depending, of course, on the profile of the track and how the assistance is used). A fully discharged battery can be charged to full capacity in 6,5 hours.

Displej SPORT DRIVE 4 generation
The SPORT DRIVE 4th generation display is perfectly legible in all light and weather conditions. Intuitive and very easy to use.
The display is supplied with external buttons for controlling support and function changes, a switch on a 22.2 mm sleeve and a 320 mm connection cable. Electrical wiring with a 70 cm long connector. 25.4 mm handlebar mounting sleeves + 22.2 mm reducer + 2 screws for mounting sleeves. Also included is a USB cable for charging external devices with cap (smartphone, flashlight, etc...).

The same passion that led the original enthusiasts to build the first electric bike continues to drive them forward – to enjoy the pleasure of creating the best electric bikes and bringing them to others. Rock Machine is the life passion and mission of the company's designers, and riding their e-bikes will bring you the same great feelings. Rock Machine is a Czech bicycle manufacturer with a long tradition (since 1994) that combines practical development, affordability, reliable components and fun design.
Manufacturer: BIKE FUN INTERNATIONAL s.r.o., Areal Tatry 1445/2, 742 21 Koprivnice, Czech republic, e-mail: info@bikefunint.com, phone: +420 720 771 501, web: www.rockmachinebikes.com
Parameters
General
Model year | 2022 |
Brand | Rock Machine |
Load capacity | 120 kg |
Colour | Black |
Motor
Engine manufacturer | Sport Drive |
Engine type | Sport Drive MD250S |
Torque | 90 Nm |
Centre engine | Yes |
Battery
Battery capacity | 500 - 599 Wh |
Precise capacity | 504 Wh |
Suspension
Front fork | RockShox Judy Silver TK, Tapered, Lockout / 100 mm |
Components
Racks | WTB SX19, 32H |
Saddle | WTB Volt Sport |
Saddlebag | ONE1 Alloy, SPS 405, 30.9x350mm |
Grips | Velo VLG-1879D2, Ergo Grip |
Coats | WTB Nineline Comp, 29x2.25", Reflective Tape |
Handlebars | ONE1 Alloy, MTB AL-325BT, 6° upsweep, 9° backsweep, 25mm rise, 680mm, 31.8mm |
Extender | ONE1 TDS-C342 Alloy, 31.8xE45mm, +3° |
Transmission
Shifter | microSHIFT Acolyte RD-M5185M |
Cassette | microSHIFT Acolyte CS-H083A, 12-42 teeth |
Sorting | microSHIFT Acolyte SL-M7180-R, 8 r. |
Number of gears | 1x8 |
Brakes
Front brakes | hydraulic Alhonga HJ-OD07, 160 mm |
Rear brakes | hydraulic Alhonga HJ-OD07, 160 mm |
Video
Questions
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