Whistle AXR C6.6 Bicycle - Grey

The Whistle AXR C6.6 Bicycle is a next-generation full-suspension e-MTB, designed to deliver high performance on technical trails and demanding excursions. Thanks to its carbon frame, 160mm travel, and extremely powerful electric system, it is the ideal choice for those seeking uncompromising control, range, and fun.

Whistle AXR C6.6: full carbon trail/enduro e-MTB

The Toray T700 carbon frame guarantees a perfect balance between lightness and structural rigidity. The 160mm rear travel, combined with modern geometries and Boost standard, allows for stable and precise riding even in the most technical sections. Battery integration and internal cable routing improve aesthetics and component protection.

RockShox suspension ensures optimal impact absorption, maintaining traction and comfort both uphill and downhill.

High Performance and Extended Range

The powerful Avinox M2S motor with up to 150 Nm of torque offers a decisive push even on the steepest and most technical climbs. The 800 Wh battery guarantees a long range, making the AXR C6.6 perfect for long mountain rides and extended enduro sessions.

Complete Technical Specifications

Mechanical Components

• Frame: Full Carbon Toray T700, 29” wheels, integrated battery, tapered head tube, internal cable routing, 160 mm rear travel, Boost 12x148 mm E-Thru rear triangle, UDH (Universal Derailleur Hanger) dropout
• Fork: RockShox DOMAIN Gold RC eMTB, DebonAir air spring, 160 mm travel, for 29” wheels, 1.5” tapered steerer tube, 15x110 mm Boost thru-axle
• Shock absorber: RockShox Deluxe DebonAir, 230x65 mm dimensions
• Headset: FSA CRII Dual, 1.5” diameter, with integrated cable routing
• Crankset: FSA CK320 with 34-tooth MegaTooth chainring, e-MTB specific
• Rear derailleur: Shimano XT RD-M8100 SGS Shadow Plus, 12-speed transmission, chain stabilizer
• Shift levers: Shimano Deore SL-M6100 Rapidfire Plus, 12-speed
• Brakes: Shimano BR-MT420 4-piston, Shimano SM-RT30 203 mm front/rear rotors
• Cassette: Shimano CS-M6100, 10-51 teeth range, 12-speed
• Pedals: Aluminum MTB Full +
• Front hub: Radial J110, Boost 15x110 mm standard, International disc mount, 32 holes
• Rear hub: Radial J148, Boost 12x148 mm standard, Microspline freehub, International disc mount, 32 holes
• Rims: Radial X30 eDesign, asymmetrical profile, Tubeless Ready, 622x30c size
• Stem: Aluminum, 35 mm diameter, 35 mm length (S-M sizes) / 50 mm (L-XL sizes)
• Handlebar: Aluminum, 780 mm width, 35 mm diameter, 15 mm rise
• Seatpost: Telescopic Dropper A1, 31.6 mm diameter, handlebar remote control
• Saddle: Selle Royal SRX
• Tires: Schwalbe Nobby Nic Performance Addix, 29” x 2.60”, ideal for trail/enduro
• Weight: 23.7 kg
• Available sizes: 40 / 44 / 48
• Wheel diameter: 29 inches
• Transmission: 12 speed

Electrical System

• Motor: Avinox M2S, 2.6 kg weight, designed for high-performance e-MTBs
• Maximum power: 1300 W
• Maximum torque: 150 Nm
• Battery: Avinox integrated 800 Wh (fixed), 3.74 kg weight
• Display: Avinox DP100, intuitive interface for assistance management and riding data
• Assistance modes: Auto, Eco, Trail, Turbo, Boost
• Maximum assisted speed: 25 km/h (limited by EU regulations)
• Charging time: approximately 2.5 hours
• Charger: 12A high-speed

Please Note

Technical specifications may change without notice based on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.

The Whistle AXR C6.6 is an e-bike designed for demanding riders who want to tackle any terrain with confidence, power, and advanced technology. Perfect for those looking for a high-performance, modern, and ready-for-action electric mountain bike.

Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly

A Complete Guide to Bike Sizes

Foreword: Not all bike sizes are the same

Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.

Bicycle adjustment margins

Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.

How to use size charts

We've created a simple guide to help you find the right bike size:

1. Check out our size charts for each bike type.
2. Learn more with specific tips to help you make the right choice.

Size Charts: Find Your Perfect Bike

Gravel and road bikes

Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.

For gravel, measurements may vary slightly due to different geometries, but remain similar.

Mountain bike

MTBs are measured in inches, based on the seat tube.

Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .

Children's bikes

The size depends on the size of the wheels, often associated with age:

What to do with half measures?

If you are between two sizes:

• Comfort : Choose the larger size.
• Performance : Go for the smaller size.

Final tips for choosing

1. Consult the manufacturer's instructions : Always check the brand's guidelines.
2. Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
3. Test the bike : If possible, test the model you intend to purchase.