The Next Generation Wattbike Atom VS. the Wattbike Nucleus - which indoor trainer is best suited for you?

September 10, 2020 3 min read

As the summer season slowly turns to autumn and the nights are drawing in, you might be starting to plan your winter fitness programme and looking to purchase your first indoor trainer. This can feel like a daunting task. If you’re unsure whether you’re more suited to the next generation Wattbike Atom or the Wattbike Nucleus, it can make that decision a little harder. We are taking those worries away with an in-depth, precise comparison guide of the two trainers. All you have to do is decide which one is best for you.


Thenext generation Atomis an evolution of our award-winning smart bike. Introducing an electromagnetic resistance motor for a smoother and more realistic ride, the best indoor smart bike for the home just got better.

With Wattbike DNA at its core, the Atom improves your performance in real time with precision data and analysis like no indoor bike ever has before. Next generation Wattbike Atom reads your data 1000 times per second for an accuracy level of +/- 1%.


Borne from theWattbike Pro/Trainer, theWattbike Nucleusfeatures our classic dual air and magnetic resistance, creating the revered Real Ride Feel. The Wattbike Nucleus also features a brand new high definition Performance Touchscreen, elevating the cycling experience by delivering the most advanced performance feedback to date. This fully connected user experience is further enhanced by the interface automatically updating via wifi. This adds new workouts, challenges and can even send error reports directly to Wattbike HQ, so any issue can be resolved right away.

Next generation Wattbike Atom The custom designed electromagnetic resistance motor allows for quicker resistance change and crisp, precise movement through the gears. This Real Ride Feel technology replicates the resistance and sensation of riding outdoors, indoors.
Wattbike Nucleus In comparison to the Atom, the Nucleus has our classic dual air and magnetic resistance. This is more suitable for all gym users whilst maintaining Wattbike's unrivalled accuracy and Real Ride Feel.
Next generation Wattbike Atom Perfect your pedalling technique indoors and become a better rider outdoors. Wattbike’s unique analysis tool, Polar View, visualises your pedal stroke in real time, showing left/right leg balance as well as how you apply force. Optimise your technique as you ride and see yourPedalling Effectiveness Score (PES)improve over time, before translating those gains to the road.
Wattbike Nucleus As with the Wattbike Atom, Wattbike Nucleus features the same innovative technique analysis tools, Polar View and PES. Analyse your pedal stroke on the performance touchscreen as you ride. Makingsmall adjustments to your techniquewill ensure you’re activating the correct muscle group at the optimal point in the pedal stroke for the most effective workout.
Next generation Wattbike Atom Electromagnetic resistance system means Wattbike Atom reacts faster than ever to third party apps for an authentic racing experience. So whether you’re racing friends on Zwift or climbing Mont Ventoux on the Wattbike Hub, you’ll experience smoother gradient climbs and instant gear changes.
Wattbike Nucleus Our high-definition Performance Touchscreen delivers the most immersive cycling experience yet. Featuring workouts, tests, training plans and our brand new interval builder.

For a more detailed comparison with full specifications on the Next Generation Atom and the Wattbike Nucleus,check out our official comparison guide.

Also in Product guides

Seven reasons most Turbo Trainer owners eventually buy a Smartbike
Seven reasons most Turbo Trainer owners eventually buy a Smartbike

August 02, 2023 4 min read

Before becoming Wattbikers, 54% of our customers say they owned a Turbo Trainer - Published below are the things they say they wished they'd known before they did...
Read More
Dual-channel Bluetooth connectivity and Zwift Play compatibility
Dual-channel Bluetooth connectivity and Zwift Play compatibility

July 12, 2023 2 min read

With the introduction of dual-channel Bluetooth connectivity, and compatibility with Zwift Play controllers, you can both ride your Wattbike Hub workout or training plan, AND get all the benefits of the Zwift immersive worlds.
Read More
Health Assessment Submax Test
Health Assessment Submax Test

June 12, 2023 3 min read

A step by step guide on how to complete the Wattbike Health Assessment Submax Test to estimate your physical health and get your cardiorespiratory fitness score.
Read More