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C-21x Bike


AVUS-10501BT (Bluetooth Apps)

Highlights (Bluetooth versions only)

Built to deliver the optimum indoor cycling experience, the adidas C-21x features a large 16 kg / 35 lb rear-drive flywheel, designed to simulate the feeling of an outdoor bike by storing kinetic energy and maintaining momentum for a smooth cycling motion and consistent cadence. Take control over the intensity of your ride by shifting the 8-level resistance paddle to lower or increase the energy required for each pedal stroke. Manually adjustable, without having to cycle through incremental levels, the resistance paddle allows you to quickly tailor your workouts with ease.


Further enhance your training regime by syncing the C-21x with Zwift (AVUS-10501BT model only), an immersive online experience built around a connected global community of cyclists. Also compatible with Kinomap (AVUS-10501BT model only), take part in a whole host of challenges and scenic motion videos or even compete with your friends in multiplayer mode. The C-21x is also equipped to connect with Peloton (AVUS-10501BT model only), allowing you to take part in huge array of both live and pre-set classes that feature encouraging instructors, all within a community of other Peloton members.


The C-21x’s onboard computer delivers live performance metrics including speed, time, distance, calories, pulse and RPM. With the supplied chest strap you can also monitor your heart rate and receive accurate data on your performance, so you can track your progress (bike connection only). A tablet and smartphone holder has been integrated into the design of the console so that you can easily watch video content while you cycle.


The fully adjustable handlebar setup with armrests, horizontal and vertical saddle adjustment, streamlined sprint saddle and Jendel pedals make the C-21x ideal for both sprints and long, flat endurance sessions. The dual water bottle holder helps to keep you fully hydrated throughout your workout session.

  • 16 kg / 35 lb flywheel simulates outdoor riding by maintaining momentum for consistent cadence

  • 8 levels of manual resistance with quick-shift paddle to quickly adjust the intensity of your ride

  • Built-in transport wheels and grip bar make it easier to move the bike around your home

  • Console feedback includes: speed, time, distance, calories, pulse and rpm

  • Dual water bottle holder within easy reach to help keep you hydrated during exercise

  • Floor level adjustment ensures the bike is stable for a better riding experience

  • Fully adjustable handlebar setup with armrests designed to support multiple riding positions

  • Intuitive console with clear LCD screen gives you complete control over your workout

  • Jendel pedals with adjustable strap & cage provides the grip needed when switching position

  • Saddle height ranges from 77 cm - 92 cm / 30.3" - 36.2" to suit all rider heights

  • Setup dimensions: 151 (L) x 56.9 (W) x 137 (H) cm / 59.45 (L) x 22.4 (W) x 53.94 (H) in.

  • Signature adidas Ultra Series red LED lighting

  • Solid, dependable build quality results in a high maximum user weight of 150 kg / 330 lb

  • Sprint saddle with vertical and horizontal adjustment provides maximum range of movement

  • Tablet and phone holder built into the console provides optimum viewing angle

  • Supplied chest strap connects to the bike only and provides accurate heart rate data

  • Zwift compatible (AVUS-10501BT model only) - immersive cycling experience connects you with cyclists across the globe

  • Kinomap compatible (AVUS-10501BT model only) - cycle real-world routes, challenge your friends and analyse workouts

  • Peloton compatible (AVUS-10501BT model only) - get encouragement from instructors & ride with others across 1000+ classes

  • Not all versions of this bike are Bluetooth enabled, please check with the retailer

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