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Unlock your health and performance with the Wattbike Nucleus. It's the perfect indoor air bike for cross-functional training, complete with the Performance Touch Screen monitor. Everything you need in one iconic package, putting personalised progression at your fingertips.

A reconditioned Nucleus A-Grade, will show minor scratches or cosmetic imperfections, with repaired or replaced internal components to ensure perfect, like-new functionality. The bike will be delivered built and is accompanied by a comprehensive one-year warranty. All bikes undergo our rigorous quality assurance checks and are thoroughly tested prior to dispatch.

Limited availability

Resistance

Reconditioned Wattbike Nucleus: A-Grade

Free Delivery

Free delivery, bike dispatched in 1 - 2 weeks.

You will receive an SMS and email from our courier partner - Panther Logistics - to book your preferred delivery date.

30 day returns

Try the Wattbike Nucleus at home for 30 days, risk-free and experience how the Wattbike Nucleus can transform your indoor training. If you're not 100% satisfied, we can even come and collect the bike for you. Terms apply. 

1 year warranty

Our reconditioned Wattbikes come with a comprehensive one-year warranty, so you can ride with confidence.

Plus, our expert support team are on hand to help you train, from technical support to training guidance. Call us on 0115 945 54 or visit our support portal.

Performance Touchscreen

Customise your training, from world-class workouts to building your own sessions. Plus get instant data feedback to keep you on track.

Resistance

Get precise control over your training with easy air resistance changes, via the lever, to set how much power you require for your workout.

Pedalling Technique Feedback

Get instant, visual feedback on your left and right leg balance and pedal stroke efficiency to improve your riding technique.

Simple set up

With only four setup adjustments and easy lock levers - just plug in and ride. Ideal for the whole household.

Choose your pedals

Toe cage or cleats, you've got the choice. The Nucleus comes with combination pedals so you can train in trainers or cycling shoes.

ACCELERATE GAINS IN PERFORMANCE, POWER, TECHNIQUE.

FEATURES OVERVIEW

Translate gains to reality

Structure your training with workouts and training plans specific to your goals. Take a benchmark test and the Wattbike Hub will match your training zones to your fitness level.

Rock solid stability

Tried and tested on hundreds of elite athletes, when it comes to pushing power targets look no further than Wattbike. It’s more sturdy and stable than any other indoor bike.

Choose your pedals

Toe cage or cleats, you've got the choice. The Nucleus comes with combination pedals so you can train in trainers or cycling shoes.

Perfect for multiple users

Ideal for multiple users, with four quick and easy set-up adjustments. Or, match your road bike positioning to the millimetre with our expert bike fit calculator.

Easy resistance adjustments

Adjust the resistance using the lever on the bike to increase or decrease the amount of air reaching the fan. You can also add more resistance by turning the magnet dial on the bike.

We don't just talk the talk

"I use the Wattbike for everything, I stretch on it, I use it as a ballet bar, it is such an amazing piece of equipment. When I purchased it two years ago, I was thrilled. It was like my baby because I knew it was going to help me."

Karen Hauer
Professional Dancer

Additional information

Key features

Feature Wattbike Nucleus
ACCURATE DATA With the Wattbike Nucleus you can rely on our data. The Nucleus delivers ±2% accuracy across the max power range of 2000w.
Performance Touchscreen The touchscreen elevates the cycling experience by delivering incredibly accurate performance feedback. It includes workouts, tests, and Wattbike’s brand new interval builder.
Polar View 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.
REAL RIDE FEEL Our unique technology replicates the resistance and sensation of riding on the road, delivering the most authentic ride feel available. That means all of the effort you put in indoors easily translates out onto the road.

Detailed Specifications

Specifications Wattbike Nucleus
MODEL: Nucleus (2000w)
HEIGHT: 130cm
FRAME WIDTH: 66cm
FRAME LENGTH: 125cm
FOOTPRINT: 145 x 66cm
BIKE WEIGHT: 58kg
BOXED WEIGHT: 68kg
FRAME: Steel
SEAT AND HANDLEBAR STEMS: Stainless Steel
COVERS: Heavy-duty ABS plastic construction
FEET: Rubber height adjustable
TRANSPORTATION ROLLERS: Yes
INTEGRATED GEAR SHIFTERS: No
Resistance settings: 1 - 10 (air), 1 - 7 (magnetic)
CRANKS: 170mm
SEAT: Racing seat fitted as standard
PEDALS (UK): E148 Combination pedals fitted as standard
Specifications Cont. Wattbike Nucleus
CHAIN: Industrial 1⁄2" x 1⁄8" steel
BELT: Automotive industry rubber, kevlar reinforced belt
HANDLEBAR HEIGHT ADJUSTABILITY: Range 51cm - 71cm
HANDLEBAR FORE/AFT ADJUSTABILITY: Range 0 - 7cm
SEAT HEIGHT ADJUSTABILITY: Range 54cm - 80cm
SEAT FORE/AFT ADJUSTABILITY: Range 0 - 9cm
ACCURACY: +/-2%
POWER RANGE: 0 - 2000w
RESISTANCE: Air and manual magnetic
THIRD-PARTY CONNECTIVITY: ANT+, Bluetooth, FTMS
THIRD-PARTY APP SMART FUNCTIONALITY CONTROL: No
GRADIENT: N/A
Q FACTOR: 173mm
MAX. RIDER WEIGHT: 150kg
RIDER HEIGHT: 5′ 1″–6′ 4″ with standard stems
EXTERNAL POWER REQUIRED: Yes

Whats Included

  • Free Wattbike Hub app.
  • Allen Keys & Spanners.
  • Mains power adapter.
  • Adjustable device holder.
  • E148 Combination pedals fitted as standard.
  • Race saddle.
  • Welcome pack with quick start guide.

Connectivity

Wattbike Nucleus
APP COMPATIBILITY Wattbike Nucleus support apps that are ANT+ compatible.
METRICS MEASURED We measure over 37 metrics about your riding and display them in the Wattbike Hub. We work with third party apps to deliver power, speed and cadence.
THIRD-PARTY APP SMART FUNCTIONALITY CONTROL: N/A
OFFLINE USE Wi-Fi is required for initial login/signup. After that, you can ride wherever you want. You don't need to have Wi-Fi or mobile data, we'll simply sync your data the next time your app is open and you have Wi-Fi.