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Wattbike Comparison Guide

Wattbike Atom

The second generation 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. Wattbike Atom reads your data 1000 times per second for an accuracy level of +/- 1%.

Buy the Atom

Wattbike Nucleus

Borne from the Wattbike Pro/Trainer, the Wattbike Nucleus features 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.

Buy the Nucleus

Characteristics Wattbike Atom Wattbike Nucleus
Resistance 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. 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.
Technique 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 your Pedalling Effectiveness Score (PES) improve over time, before translating those gains to the road. 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. Making small adjustments to your technique will ensure you’re activating the correct muscle group at the optimal point in the pedal stroke for the most effective workout.
Connectivity 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. Our high-definition Performance Touchscreen delivers the most immersive cycling experience yet. Featuring workouts, tests, training plans and our brand new interval builder. The Wattbike Nucleus can also connect to third party apps (the likes of Zwift, Rouvy, Sufferfest and many more) via Ant+ or Bluetooth. Please note: the app will not control the bike to simulate gradient changes as seen with the Wattbike Atom.

Detailed Comparison

Sales and Delivery Wattbike Atom Wattbike Nucleus
Delivery options Boxed and assembled Atom is pre-assembled. Only the tablet holder, mount and pedals require fitting. Boxed and assembled
Availability Warranty currently supported in the UK. Warranty supported globally via our distributor network.
Warranty Home use warranty — 2 years 6 months on wear-and-tear items Home and commercial use warranty — 2 years 6 months on wear-and-tear items

Suitability ratings Wattbike Atom Wattbike Nucleus
HIIT/Sprint training
Endurance training
Smart training N/A
Climb training N/A
Time trial training
Triathlon training

Technology Wattbike Atom Wattbike Nucleus
Smart technology Resistance unit able to interact with software Yes No
Wattbike Hub connectivity ANT+, FE-C, Bluetooth Via Performance Touchscreen
Third-party app connectivity ANT+, FE-C, Bluetooth ANT+, Bluetooth
Third-party app control FE-C, Zwift via BLE N/A
Wireless firmware updates Yes Yes

Resistance & power Wattbike Atom Wattbike Nucleus
Resistance type Electromagnetic Air and magnetic
Resistance functionality Automatic and manual resistance Changed using electronic shifters Manual resistance Changed using lever or magnet
Accuracy +/-1% +/-2%
Power range 0–2500w 0–2000w
Gears 1–22 1–10 (air), 1–7 (magnetic)
Gradient 0–25% Not compatible

Feature availability Wattbike Atom Wattbike Nucleus
Polar View Yes Yes
Pedalling Effectiveness Score (PES) Yes Yes
Tests, workouts and training plans Yes Via the Wattbike Hub Yes
Virtual climbing Yes No
Ergo mode Yes No

Technical specifications Wattbike Atom Wattbike Nucleus
Power required Mains adaptor Mains adaptor
Bike weight 40kg 55kg
Footprint 100cm (l) × 50cm (w) × 150cm (h) - tri-bar & tablet holder fully extended 125cm (l) × 66cm (w) × 130cm (h)
Micro-handlebar adjustability Vertical and horizontal Yes Yes
Micro-saddle adjustability Vertical and horizontal Yes Yes
Crank length 170mm 170mm
Q factor 160mm 173mm
Calibration Factory set Factory set
Max. rider weight 135kg 150kg
Rider height 5′–6′ 5″ 5′ 1″–6′ 4″
Operating temperature 5-50°C 5-50°C