SPORT DRIVE MD250S
90 Nm
500 Wh
8 speeds
29"
65 mm (front)
Rack, mudguards, battery-powered lights or a handy stand and integrated lock are included
A cool women's e-bike with a trendy MONO frame for easy boarding and a comfortable ride. The e-bike is powered by a powerful Sport Drive mid-motor, which offers a high quality yet very affordable alternative to other mid-motors on the market and gives us a very pleasant and smooth ride. Maximum power output of 500 W and an efficiency of more than 80%. It is therefore the obvious choice. You will appreciate not only the power but also its exceptionally quiet operation. Even in the steepest terrain, it will help you in a very significant way. Its power is provided by a reliable 500 Wh frame battery, which is enough for really long trips. The model is built on a 29" for fast cycling and all-day touring.
The e-bike comes fully equipped for the city: there's a rack, mudguards, lights powered by the bike's battery or a handy kickstand and an integrated lock to keep your bike safe. The SPORT DRIVE Color display USB control unit is just to your left, showing you the battery level or the current speed. Comfort is ensured by the suspension fork and safe stopping is ensured by the powerful disc brakes. The ROCK MACHINE CrossRide INT e450 lady touring can therefore become your companion in the city or on trips around the countryside.
Need help choosing the right e-bike? Take advantage of our guide to choosing an e-bike or contact us.
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

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
Colour | Violet |
Load capacity | 120 kg |
Motor
Centre engine | Yes |
Battery
Battery capacity | 500 - 599 Wh |
Precise capacity | 500 Wh |
Transmission
Cassette | SHIMANO ACERA CS-HG200-9, 11-36T |
Sorting | SHIMANO ALTUS SL-M2010-9R RapidFire Plus, 9 speeds |
Number of gears | 1 x 9 |
Components
Extender | ONE1 Sport MAS-D61808 Alloy, 31.8xE65mm, ±15° |
Handlebars | ONE1 Alloy, MTB AL-325BT, 6° upsweep, 9° backsweep, 25mm rise, 680mm, 31.8mm |
Racks | WTB SX19, 32H |
Saddle | WTB Koda Sport |
Saddlebag | ONE1 Alloy, SPS 405, 30.9x350mm |
Front hub | SHIMANO TX HB-TX505, 32H, CENTER LOCK, QR Type |
Rear hub | SHIMANO TX FH-TX505-8, 32H, CENTER LOCK, M10x135mm, QR Type |
Grips | Velo VLG-1879D2, Ergo Grip |
Coats | WTB Riddler Comp, 29x1.75", Reflective Tape |
Brakes
Rear brakes | SHIMANO BL-MT200/BR-MT200, 160/160 rotor, hydraulic disc brake |
Front brakes | SHIMANO BL-MT200/BR-MT200, 160/160 rotor, hydraulic disc brake |
Suspension
Front fork | ZOOM 187D AMS HLO, 1-1/8", Coil, QR Type, Lockout, 65mm travel |
Questions
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