CRUSSIS ONE-Fionna AX 9.12-M2S(800)
A high-end, high-performance women's mountain e-bike. Avinox M2S motor, a more powerful 800 Wh battery, and solid components—a 120 mm RockShox fork, SRAM brakes, a modern 12-speed derailleur, and 29" wheels with all-terrain tires. Geometry optimized for women.
Description
CRUSSIS ONE-Fionna AX 9.12-M2S(800)
A high-end, powerful women’s electric mountain bike. The Avinox M2S motor is among the most powerful available in this price range—it delivers high torque, very smooth and quiet assistance, and excellent responsiveness even on technical terrain and steep climbs. The large 800Wh battery allows for all-day rides and longer routes without worrying about running out of power. The bike comes with solid trail-ready specs: a 120 mm RockShox air fork, SRAM 4-piston brakes, a modern 12-speed drivetrain, and 29" wheels with all-purpose tires. The frame features geometry optimized for women (a more comfortable riding position).


A New Standard of Quality for Aluminum Frames
The CRUSSIS MY27 sets a new standard for the quality of aluminum e-bike frames, where premium craftsmanship is the norm. Precisely ground welds, clean lines, and a look that’s almost carbon-fiber-like. The result is a combination of premium design, high strength, and durability that takes expectations for a modern e-bike to a whole new level. Because this is exactly what the standard for a high-quality e-bike should look like today.
ROCKSHOX FS Recon Silver RL Solo Air 29" BOOST 120 mm
An air-sprung fork for 29" electric mountain bikes that combines low weight, easy adjustment, and reliable off-road performance. Thanks to the Solo Air system, air pressure can be easily adjusted to the rider’s weight and riding style. It features 120 mm of travel and a robust design with a Boost 15×110 mm hub. The Solo Air suspension ensures comfort and control over the bike. Motion Control damping allows you to adjust compression and tailor the fork’s behavior to specific conditions.


AVINOX 12A Fast Charger
Thanks to GaN technology, it achieves a charging power of up to 508 W, significantly reducing the time needed to recharge. It can charge an 800 Wh Avinox battery from 0 to 75% in approximately 1.5 hours. Despite its high performance, it remains compact and easily portable, making it a practical accessory not only for charging at home but also for longer trips, training sessions, or multi-day travels. Dimensions: approximately 185 × 75 × 37 mm. Weight: approximately 985 g. A power cord is included in the package.
CRUSSIS ONE-Fionna AX 9.12-M2S(800) – Women’s Mountain E-Bike with Avinox M2S
The CRUSSIS ONE-Fionna AX 9.12-M2S(800) is a modern women’s electric mountain bike from the 2027 collection that combines an aluminum frame, large 29" wheels, and a powerful Avinox M2S drive. Thanks to its high-capacity 800Wh battery, high-quality RockShox suspension, and SRAM components, it’s ready for long rides, steep climbs, and riding on more challenging terrain.
Avinox M2S Motor – Up to 150 Nm
At the heart of the e-bike is the Avinox M2S mid-drive motor, which provides significant assistance when riding uphill and on technical terrain. In Boost mode, the system delivers up to 150 Nm, allowing it to handle even steep climbs and challenging sections with ease. The system is controlled via the 2" Avinox DPC100 OLED touchscreen, which displays ride data, assistance settings, and other system functions. Another practical feature is the USB-C port for charging compatible electronic devices.
Avinox 800 Wh Battery
A major advantage of this model is the removable Avinox battery with a capacity of 800 Wh. Its high capacity provides ample power for long trips and demanding routes in hilly terrain. The stated range is up to 157 km, though the actual distance per charge depends on the selected assistance mode, route profile, terrain, rider’s weight, temperature, and other conditions.
The bike comes equipped with a 12A Avinox fast charger, which allows for quick recharging and reduces the time needed to charge the battery.
RockShox Recon Silver RL – 120 mm travel
For a comfortable and confident off-road ride, the bike is equipped with a RockShox Recon Silver RL Solo Air 29" BOOST air fork with 120 mm of travel. The fork effectively absorbs bumps, helps keep the front wheel in contact with the ground, and, thanks to its lockout feature, can also be adjusted for riding on smoother sections.
29" wheels and Schwalbe Smart Sam tires
The large 29" wheels give the e-bike stability and help it navigate roots, rocks, and other uneven terrain more easily. Traction is provided by Schwalbe Smart Sam Performance 29 × 2.60" tires, which combine reliable grip on rough terrain with a smooth ride on paved roads.
SRAM S100 Eagle 1×12
Shifting is handled by the SRAM S100 Eagle 1×12. The 11–50-tooth cassette offers a wide enough range for steep climbs and faster riding on flat sections. The single-chainring setup provides simple shifting and lets you focus on the ride itself.
SRAM DB4 Four-Piston Brakes
Safe deceleration is ensured by SRAM DB4 hydraulic brakes with four-piston calipers and 180 mm rotors front and rear. They provide ample braking power and control when riding uphill, on technical sections, and during longer descents.
Women’s Aluminum Frame
The bike is built around an Alu 6061 aluminum frame, designed for comfortable and confident handling of the e-bike. Solid BOOST axles contribute to the frame’s high stiffness and ensure stable handling off-road. The CRUSSIS handlebars are 740 mm wide and facilitate precise control when riding off-road.
The CRUSSIS ONE-Fionna AX 9.12-M2S(800) is a women’s electric mountain bike for riders who want a combination of a powerful Avinox drive, a high-capacity battery, and confident handling off-road. The Avinox M2S, 800 Wh battery, 120 mm RockShox fork, 29" wheels, and SRAM DB4 four-piston brakes come together to create a well-equipped package for long mountain trails, all-day rides, and off-road adventures.
EAN: 8595640735174, 8595640735181
E-bike range calculator
Flat
Medium
Hills
The e-bike range is approximately
*Factors affecting total range include technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique

Avinox M2S
A high-performance motor with 130 Nm of torque (150 Nm in Boost mode), a peak power output of 1500 W (with the FP700 battery; 1,300 W with other batteries; or 1,500 W in Boost mode with the RS800) and a lightweight design (2.59 kg). The second generation features flat-wire winding for higher efficiency, quiet helical gearing, and Dual Gear Engagement technology, which eliminates rattling during descents without assistance. Internal resistance has been reduced by 41%, ensuring a natural ride even with a depleted battery. Integrated sensors enable adaptive power control based on cadence and riding conditions. Intelligent electronics ensure lightning-fast pedal response and smooth power delivery that will support you even on the most demanding terrain.

Avinox RS800 Battery
The Avinox RS800 battery, with a high capacity of 800 Wh, combines maximum power with the practicality of a removable system. Weighing 4.0 kg and featuring IP56 protection, it can be easily removed from the frame thanks to a locking mechanism and charged anywhere away from the bike. It delivers an impressive continuous power output of 1300 W and can reach a peak of 1500 W in Boost mode. Intelligent health management ensures 80% capacity retention after 500 cycles, and GaN technology enables ultra-fast charging.

Display Avinox DP100
The display is integrated into the frame of the e-bike. It has a 2" OLED touch panel with a resolution of 326 ppi and a brightness of up to 800 nits, which automatically adjusts to the ambient lighting. It features GPS sensors, a gyroscope, a barometer and support for Bluetooth 5.1, ANT+ and LTE-Cat.1. It allows you to track your route, speed, cadence and performance with 8 GB of internal memory and synchronisation via the app. Control is provided by one or two wireless controllers on the handlebars – the left one for setting the level of assistance and the right one for scrolling through the display (the right controller is only available on selected models). The USB-C port supports fast charging with a power output of up to 65 W.
Since its inception in 2012, CRUSSIS e-bikes have been among the best-selling e-bike models. Thanks to modern production, innovations (e.g., integrated batteries), colorful designs, and good marketing, it has become the dominant brand in the mid-range electric bike segment. The company prides itself on its strong price/performance ratio, stable production capacity, and wide range of accessories. CRUSSIS is currently collaborating with Czech cycling legend and three-time MTB World Champion Michal Prokop, who is involved in the development of new e-bike models.
Contact: CRUSSIS electrobikes s.r.o., K Brezince 227/18, 182 00 Praha 8 - Brezineves, Czech Republic, e-mail: info@crussis.cz, phone: +420 604 219 792, web: www.crussis.com
Parameters
General
| Load capacity | 120 kg |
| Brand | Crussis |
| Frame Size | Frame L, Frame S, XL Frame, Frame M |
Motor
| Mid-engine | Yes |
Questions
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