Wattbike indoor trainer comparison guide

Wattbike Atom Logo

Our most popular smart bike

For the ultimate indoor cycling experience.

Wattbike Atom product image
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.
Wattbike Nucleus Logo

Our original Wattbike, made for the home

The hassle-free option to indoor training.

Wattbike Nucleus product image
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.

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 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