Indoor Exercise Bike — Belt-Drive Spin Bike with 4 kg Flywheel and Adjustable ResistanceBELT DRIVE · 4 kg FLYWHEEL

Indoor Exercise Bike — Belt-Drive Spin Bike with 4 kg Flywheel and Adjustable Resistance

A belt-driven spin bike with a 4 kg flywheel and a felt-pad resistance dial, quiet enough to use in a flat without annoying anybody.

NOTVIX Active

Indoor Exercise Bike

Quiet enough for a flat

  • Belt transmission rather than a chain, which is what makes it quiet and keeps maintenance to nothing
  • A 4 kg flywheel with a felt-pad resistance dial, an adjustable seat and a 120 kg rated load
  • Free tracked shipping on all US orders · 30-day returns on unused items
$499.00 $664.95 −25%
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Secure checkoutTracked delivery30-day returns

Free tracked shipping

Orders are processed in 1–2 business days. Delivery within the US then takes 7–12 business days, and the tracking number is emailed as soon as the parcel leaves. Orders with items from different fulfilment partners can arrive in more than one shipment, each tracked separately.

30-day returns

Unused items in their original packaging can be returned within 30 days of delivery. Email Support@notvix.com with your order number first and we send the return address — parcels sent back without one can go missing. Refunds go to the original payment method once the item reaches us.

What is in the box?

One exercise bike, part-assembled, with the tools and instructions for the remaining assembly. It is a bulky item and ships on its own tracking.

Description

Indoor Exercise Bike with Belt Drive & Adjustable Resistance

Make indoor cycling part of your routine with this stationary exercise bike. Featuring a 4 kg flywheel, belt-driven transmission, and a cushioned seat, it brings convenient cardio training into your home.

🚴 Belt-Driven Cycling
The belt transmission delivers a smooth pedaling feel for steady rides, warm-ups, and interval sessions.

🎚️ Adjustable Friction Resistance
A wool-felt resistance system lets you change the pedaling challenge to suit your workout and preferred intensity.

📊 Track Your Workout
Monitor time, speed, distance, and estimated calories as you ride, making it easier to follow your session goals.

❤️ Optional Heart Rate Tracking
Choose the “With Heart Rate” model for an additional heart rate display. This feature is available only on the corresponding variant.

🪑 Cushioned Seat & Steel Frame
A soft seat provides cushioning, while the coated steel frame supports a listed maximum user weight of 120 kg / approximately 265 lb.

Product Details

  • Bike type: Upright indoor exercise bike
  • Flywheel: 4 kg / approximately 8.8 lb
  • Drive system: Belt
  • Resistance and braking: Wool felt
  • Frame: Coated steel tubing
  • Maximum user weight: 120 kg / approximately 265 lb
  • Variants: With or without heart rate tracking

📦 Package Includes: 1 × Indoor Exercise Bike.

Bring your next cycling session home.

WHY THIS ONE

Four things worth knowing before it takes up floor space

An exercise bike is the largest thing in this range and the one most likely to become a clothes rail. These are the details that decide which way it goes.

A belt, not a chain
Belt drive runs quietly and needs no oiling. On a chain bike the noise is what stops you riding early in the morning in a shared building.
Resistance on a dial
A felt pad presses the flywheel, and the red knob sets how hard. Infinite adjustment rather than eight fixed levels, and the same knob is the emergency brake.
A seat that moves
Height and position both adjust, which is what decides whether a bike fits one person or everyone in the house.
A steel frame with stabilisers
Sprayed steel tube on wide feet, rated by the manufacturer to 120 kg. Weight in the base is what stops a bike walking across the floor when you stand up on the pedals.

HOW TO USE IT

Three steps, and set the seat first

  1. 1

    Assemble it on a flat floor

    Follow the supplied instructions and tighten every bolt before the first ride. Leave the wrapping under it while you work.

  2. 2

    Set the seat before you ride

    Seat height so your leg is nearly straight at the bottom of the pedal stroke, with a slight bend. This is the single adjustment that decides whether your knees enjoy this.

  3. 3

    Start on light resistance

    Turn the dial up gradually as you warm up. Pushing the knob straight down is the brake — worth knowing before you need it.

The assembly instructions supplied with the bike are the authority. Where they differ from anything here, follow them.

IN USE

Where it earns its place

A corner of the living room
The main use, and the reason a quiet belt drive matters.
Early mornings
Before anyone else is up, which a chain-driven bike makes impossible.
Bad weather
The days a planned run does not happen.
Steady sessions
Longer, easier rides rather than sprint intervals — that is what a 4 kg flywheel suits.

SAFE USE

The numbers, and what to check first

Drive
Belt transmission
Flywheel
4 kg
Resistance
Felt pad with a dial, also the brake
Frame size
About 101 × 50 × 114 cm
Maximum user weight
120 kg, manufacturer rating
Weight
About 21 kg

Before you use it

  • Assemble it fully and check every bolt before the first ride, then check them again after a few sessions.
  • Set the seat height before you ride. Riding with the seat too low is the fastest way to make your knees hate an exercise bike.
  • Know where the brake is — pressing the resistance knob down stops the flywheel. A 4 kg flywheel keeps spinning after you stop pedalling.
  • Keep children and pets away from the moving flywheel and pedals, and never leave a child unsupervised near it.
  • If you have a heart condition, high blood pressure, or you are returning to exercise after a long break, talk to a healthcare professional before starting.

This is exercise equipment, not a medical device. If you have a heart condition, high blood pressure, joint problems, or you are pregnant, talk to a healthcare professional before starting a cycling programme.

BEFORE YOU ORDER

Questions people ask

Does it have a display?

The manufacturer lists a monitor showing time, speed, distance and calories, and offers the bike in versions with and without heart rate. Our listing photos show the handlebar bracket rather than the console, so we are not going to promise a specific display. Message us before ordering if that decides it for you and we will confirm with the supplier.

How quiet is it really?

Belt drive is the quiet kind — a low hum rather than the rattle of a chain. It is quiet enough for a flat with somebody asleep in the next room; it is not silent, because a 21 kg machine with a 4 kg flywheel never is.

Does it come assembled?

Part-assembled. The frame arrives together and you fit the seat, handlebars and pedals with the supplied tools. Set aside half an hour and a second pair of hands for lifting it upright.

Is a 4 kg flywheel enough?

For steady riding and general fitness, yes. Heavier flywheels give a smoother feel at high cadence, which is what commercial spin bikes are built for. This is a home bike and it rides like one.

How much room does it need?

About 101 by 50 cm on the floor, and 114 cm tall. Allow a little more around it than that so you can get on and off comfortably.

How does the multi-buy discount work?

It comes off on its own at checkout, with no code to type. Two items anywhere in your basket take 10% off, three take 15%, four take 20%. They do not have to be the same product.

When will it arrive?

Orders are dispatched within 1–2 business days and usually arrive within 7–12 business days after that; tracking is emailed as soon as the parcel leaves. If it is not for you, unused items can be returned within 30 days — email us first for the return address.

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