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One bike, no subscription fees, made for everyone
The same pro-grade tech as our elite training bikes - built for everyday fitness.
Proton: built for everyday training. Here's how it compares.
 Proton |  Atom | |
| Best for | Family fitness & everyday training | Cyclists & structured indoor training |
|---|---|---|
| Resistance system | Electromagnetic | Electromagnetic |
| Training style | Guided & connected | Connected & performance focused |
| App connectivity | Wattbike Hub & third-party apps | Wattbike Hub & third-party apps |
| Ideal user | Multi-user homes | Cyclists & enthusiasts |
| Max power output | 1,800W | 2,500 watts |
| Footprint (L x W) | 102 x 57cm | 124 x 50cm |
| Weight | 48kg | 45kg |
| Price | £1,799£1,649 | £2,499£2,299 |
| Training content | Free on Wattbike Hub app | Free on Wattbike Hub app |
“
"Just bought a Wattbike Proton. Firstly, it's an excellent bit of kit, very easy to assemble, set up, and connect to the Wattbike hub. Currently training for a sportive and the Proton suits my needs. Whole family is now set up on it, and they love it."
— Andy
Meet the Wattbike Proton
✓ One bike for the whole household- Fits riders from 4'6" to 6'6".
✓ Adjusts in seconds - Tool-free setup makes switching riders effortless.
✓ No subscription, ever- Enjoy hundreds of free workouts.
✓ Train your way - Ride with the Wattbike Hub app, connect to Zwift, ROUVY, Strava, TrainingPeaks and more, or skip the apps entirely.
Train your way.
Zero monthly fees.
- Free with every Proton — nothing to subscribe to
- Structured plans and guided workouts from real coaches
- VO2 Max testing and a personal Healthspan Score
- Progress tracking across every ride, automatically
- Works on your phone, tablet, or the device you already own
Why pay every month
to keep training?
With Proton, you get powerful training tools and performance data — at no extra cost.
Wattbike Hub App
£0/ Month
£0/ Year
Included with ProtonVS.
How Other Training Apps Stack Up
£17.99+/ Month
£159.99+/ Year
Ongoing monthly costFrequently Asked Questions
Do you need a subscription for the Wattbike Proton?
No. The Wattbike Proton does not require a monthly subscription and includes access to the free Wattbike Hub app. Third-party apps may require their own subscriptions.
What apps work with the Wattbike Proton?
The Wattbike Proton connects to popular indoor cycling apps including Zwift, ROUVY, TrainerRoad, FulGaz and MyWhoosh using Bluetooth and ANT+.
How accurate is the Wattbike Proton?
The Wattbike Proton measures power with +/-1% accuracy, providing reliable training data for tracking fitness and cycling performance.
Does the Wattbike Proton automatically change resistance?
Yes. The Wattbike Proton uses electromagnetic resistance and can automatically adjust resistance during compatible workouts and training sessions.
Can multiple people use the Wattbike Proton?
Yes. The Wattbike Proton has adjustable handlebars and saddle positions, allowing different members of a household to quickly adjust the bike to suit them.
How much space does the Wattbike Proton need?
The Wattbike Proton has a compact footprint of approximately 102 cm x 57 cm, making it suitable for home gyms, spare rooms and smaller workout spaces.
Does the Wattbike Proton have a screen?
No. The Wattbike Proton uses an adjustable device holder for a compatible smartphone or tablet, allowing you to use Wattbike Hub and third-party training apps.
What is the difference between the Wattbike Proton and a regular exercise bike?
Unlike a basic exercise bike, the Wattbike Proton provides accurate power data, automatic electromagnetic resistance, performance metrics and connectivity with indoor cycling apps.
Does the Wattbike Proton work with Zwift & ROUVY?
Yes. The Wattbike Proton connects to Zwift & ROUVY, allowing you to use the bike for interactive indoor rides, workouts and training.