Wattbike Nucleus Indoor Cycle

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The Wattbike Nucleus: The evolution of a pioneer. Features a performance touchscreen, magnetic resistance, air resistance & combination pedals.

Please be aware: a surcharge is placed on top of delivery due to the size of item

  • The Wattbike Nucleus features a high-definition performance touchscreen, delivering the most advanced performance feedback for a fully connected user experience.
  • With 2 resistance options available - standard and high - the Nucleus fits the needs of everyday health and fitness users, to the most elite athletes and more powerful riders.

The performance touchscreen includes workouts, plans, tests and interval builder, allowing riders to create the ultimate personalised workout. The Wattbike Nucleus has resistance suitable for all gym users and maintains Wattbike's unrivalled accuracy and Real Ride Feel. The updated magnetic brake also provides a more linear and predictable resistance for riders. Fire up the gym floor for cyclists, gym goers, and health and fitness fans with Wattbike's latest offering.

With the Wattbike Nucleus you can rely on our data. The Nucleus delivers ±2% accuracy across the max power range of 2000w.

The touchscreen elevates the cycling experience by delivering incredibly accurate performance feedback. It includes workouts, tests, and Wattbike’s brand new interval builder.

Pedalling Effectiveness Score is a unique technique analysis tool. Building on the industry defining Polar View, PES provides riders with a colour coded display and numerical score. Previously only available via smartphone and tablet on the Hub app, you can now find it right in the touchscreen of the Wattbike Nucleus.

Visualise how you apply force through each pedal stroke and optimise your technique with our patented analysis tool. Training with Polar View helps improve your pedalling efficiency and power output.

Simple Operation

Operating the Wattbike is very easy. Simply sit on the Wattbike, select ‘Just ride’ from the ‘Main menu’ and start pedalling. The Wattbike Performance Computer will give immediate cycling feedback. The monitor has a powerful list of features (including: preset workouts, save favourite workouts, ReRide against a previous training sessions or cycling analysis) and it is simple to use.

Dual Braking System

The Wattbike features a patent protected dual braking system to enable it to recreate the feeling of cycling on the flat and climbing.

Air-braking system

The air-braking system recreates the feel of cycling on the flat using different gears. The ‘gear lever’ can be moved from ‘1’ through to ‘10’, where ‘1’ represents the lowest gear and ‘10’ the highest. The lever regulates the flow of air entering the flywheel. By increasing the aperture the flow of air and therefore the resistance is increased. For most training situations the rider will only need to apply the air-braking gear system. You can adjust the ‘gear’ during a workout, just as you would on a road cycle and the sensation is just the same.

Magnetic Braking System

The addition of a magnetic braked flywheel allows the rider to recreate the feel of climbing. The ‘Climb’ lever rotates clockwise through one complete turn and is marked ‘1’ through to ‘7’, where ‘1’ represents a level road and ‘7’ a very steep one. The combination of both systems means that the Wattbike can be used at high cadence low wattage at one training extreme or low cadence high wattage at the other.

SPD pedals, saddle and water bottle

All Wattbikes come with reversible SPD and toe-cage pedals and a set of SPD cleats. A Wattbike saddle is included in the box. The saddle and pedals are standard fittings can be replaced with any cycling pedals or saddle or the Wattbike racing saddle accessory.


The Wattbike has been developed with British Cycling's coaches and scientists to:

  • Replicate the sensation of 'real' cycling
  • Be the world's first factory calibrated indoor bike
  • Deliver accurate and consistent performance feedback
  • Provide technique feedback on force and power delivery.

In creating the Wattbike a number of guiding principles have led its construction. The Wattbike is designed to:

  • Withstand very heavy use for extended periods of time, for an extended lifetime. Industrial grade construction and components are standard
  • Accommodate all shapes and sizes of user. Whether large or small the strength of the bike and the range of adjustability make it possible for everyone to exercise safely and adjust themselves into an efficient cycling position
  • Deliver at all exercise intensities. As relevant to a cardiac rehabilitation patient who pedals slowly at 30 Watts as an Olympic sprint cyclist who peaks at over 2000 Watts
  • Perform accurately, and maintain that degree of accuracy throughout its lifetime
  • Be compact and stylish. An indoor bike that suits a gym environment and one which the user would be happy to have in their home.

The Wattbike is compatible with popular training solutions Zwift, Sufferfest and TrainerRoad via either Bluetooth and/or Ant+. This compatibility really allows the user to get the most out of their Wattbike, adding extra dimensions to their workout.

User Guide

You can find the user guide here. and the product video here.

More Information
FeedbackWorkouts, tests, plans, challenges and Wattbike’s brand new interval builder
PedalsCombination pedals fitted as standard
Resistance Levels1–10 (air), 1–7 (magnetic) | 2000w max
HandlebarsMicro-Adjustable - verical and horizontal | Combination bars featuring drops and hoods
Resistance SystemDual Resistance, Air and Magnetic
Power SupplyMains adaptor
Heart RateYes
ConnectivityANT+, Bluetooth, FTMS | Wireless Software Updates
SeatMicro-Adjustable - verical and horizontal
Roller Sizetransportation rollers fitted
Has wheelsYes
AdjustableHandlebars and Seat
Dimensions125cm (l) × 66cm (w) × 130cm (h)
Maximum User Weight150kg
Floor Space NeededFloor space = 125 x 66cm | Footprint including tablet = 145 x 66cm
SizeMax User Height :–6′ 5"
Heart Rate MonitorNo
Cooling FanNo
DisplayWattbike Performance Touchscreen (11.6 inch tablet display)
Warranty TypeCommercial Warranty
Commercial Warranty Details

Commercial use warranty — 2 years

6 months on wear-and-tear items


We offer a range of delivery options, depending on the product you’re buying and where you would like your order delivered. Find out more about our delivery options and returns policy below.

With all cardio products except from Concept2 units we recommend specialist installation. If this is applicable to your order, one of our team will be in touch to book a suitable date in with you.
Standard Delivery

Currently due to the COVID-19 pandemic our timescale for dispatching orders is 3-5 working days. Standard delivery from £9.95 inc-VAT.

Free Delivery

Free UK mainland delivery is available on selected products only.

Note: For large or heavy items we currently offer a kerbside pallet drop only. For more details please call 0333 2000 750.

UK postcode exceptions: Free delivery is currently not available to the following postcodes beginning with: BT, KA27, KA28, FK18-FK21, HS1-HS9, IV1-IV63, PA20-PA88, PH17-PH50, KW1-KW17, PO30-PO41, ZE1, ZE2, ZE3, IM, IOM, JE and GY. Postcode exception areas include Scottish Highlands & Islands, Isle of Man, Channel Islands and Northern Ireland.

Returns Policy: You have fourteen (14) days, from receipt of cancellable goods, to notify us if you wish to cancel your order or exchange an item. For more information on our returns policy please click here.

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0% interest free finance is available on hundreds of products in our range and classic finance options are available on all orders over £280.

You can complete your finance choice at the payment stage of the checkout.

Note: Finance is only available to UK residents over the age of 18. Subject to terms and conditions. Signature on delivery will be required. Goods can only be delivered to the billing address used when applying for finance, and not to an alternative delivery address. Find out more about financing your purchase .

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