Wattbike indoor trainer comparison guide

Our most popular smart bike

For the ultimate indoor cycling experience.

Best for: virtual training experiences, workouts, climbs, endurance rides

Virtual indoor cycling experience that connects to a range of compatible training apps. Race friends in Zwift or ride real routes in Rouvy, the Atom automatically simulates gradients in the virtual worlds.
Structured workouts and rides using our free Wattbike Hub training app.
Ergo mode allows the smart bike to control the resistance changes for you, allowing you to focus on your training workout or pedalling technique with our unique industry measurement.
Replicates your road bike set up with easy multipoint adjustment, dropped handlebars, a race saddle and gear shifters.
Quiet riding with a small footprint, great looks and perfect for the home.

Our original Wattbike, made for the home

The hassle-free option to indoor training.

Best for: cross-functional training, interval sessions, customised workouts, off-feet training, weight management

All the same technology, accuracy, reliability and pedigree of our legendary air bike, but with an upgraded touchscreen that makes it perfect for cross-functional and hassle-free training.
Your all-in-one coach - get on-demand training sessions, custom build your own workouts, and get live data and technique feedback all from one screen.
Get precise control over your training with instant air resistance changes to set how much power you require for your workout. It's perfect for HIIT training, strength sessions, light recovery rides and rehab programmes.
Reduce the impact stress of running or on-feet training with indoor cycling. A tried and tested approach in elite sport, off-feet conditioning is designed to reduce training load and improve physical performance.
Train on your time with four simple set up steps with easy lock levers - just plug in and ride. No hassle.

Wattbike Resistance Explained

When it comes to Wattbikes, there are two different resistance types to train with - electromagnetic or air resistance.

To help you decide the best option for your training, the type of resistance you train with should be driven by your fitness goals, the type of training experience and environment you’re looking for.

Let’s debunk our two resistance types for you.

Electromagnetic

Electromagnetic resistance is determined by how much electric power flows through the magnets - so the higher the current, the higher the resistance. Our smart bike, Wattbike Atom has an electromagnet resistance which offers a power range of up to 2500W and 22 gears (when in ‘gear mode’). When in ‘ergo mode’, the electromagnet resistance can automatically adjust, so you can jump into any workout and the bike will take control of the resistance levels for you.

Best for:‎‎‏‏‎ ‎‎Virtual training experiences, workouts, climbs and endurance sessions.

View the Atom

Air

Air resistance is determined by how much air is reaching the fan (by manually adjusting the lever on the side of the Wattbike). The more air you allow in and the faster you pedal, the more resistance you’ll have. Training with air allows you to have full control of the power load on your muscles, and reduces the impact of stress of running taking your training ‘off-feet’.

The trainer also has a manual magnetic resistance adjustment (by turning a dial on the Wattbike) which can be used in combination with the air, providing additional resistance for those more powerful sessions.

Best for: cross-functional training, interval sessions, customised workouts, off-feet training, weight management

View the Nucleus

Detailed Information

▼Sales and Delivery

Sales and Delivery	Wattbike Atom	Wattbike Nucleus
RRP (inc VAT)	£2,399	£2,499
Delivery options	Boxed - only the tablet holder, mount and pedals require fitting	Boxed
Warranty	2 years home use warranty	2 years home and commercial use warranty

◄Technology

Technology	Wattbike Atom	Wattbike Nucleus
Smart technology (resistance unit interacts with software)	Yes	No
Third-party app connectivity	ANT+, Bluetooth, FTMS	ANT+, Bluetooth, FTMS
Third-party app control	Any ANT+FEC Bluetooth FTMS enabled app inc Zwift, Rouvy, TrainerRoad, FulGaz, RGT	Not compatible
Wireless firmware updates	Yes	Yes

◄Resistance & power

Resistance & power	Wattbike Atom	Wattbike Nucleus
Resistance type	Electromagnetic	Air & Magnetic
Resistance functionality	Automatic and manual resistance changed using digital shifters	Manual resistance (changed using lever or Magnet dial)
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

Feature availability	Wattbike Atom (via smart device)	Wattbike Nucleus (via screen &/or smart device)
Polar View	Yes	Yes
Pedalling Effectiveness Score (PES)	Yes	Yes
Tests, workouts, training plans	Yes	Yes
Virtual climbing	Yes	No
Gear mode	Yes	No
Ergo mode	Yes	No

◄Technical specifications

Technical specifications	Wattbike Atom	Wattbike Nucleus
Power required	Mains powered	Mains powered
Bike weight	44kg	55kg
Footprint	100cm (l) × 50cm (w) × 150cm (h)	125cm (l) × 66cm (w) × 130cm (h)
Tri-pads	Yes	No
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″ (7’ 1” with extra long stems)
Operating temperature	5-50°C	5-50°C