• Keiser m3i indoor bike with magnetic resistance front view
  • Keiser m3i indoor bike with magnetic resistance side view
  • Keiser m3i indoor bike with magnetic resistance side ways view
  • Keiser m3i indoor bike with magnetic resistance display screen
  • Keiser m3i indoor bike with magnetic resistance view of the back of the bike
  • Keiser m3i indoor bike with magnetic resistance side view
  • Keiser m3i indoor bike with magnetic resistance view of the front
  • Keiser m3i indoor bike with magnetic resistance pedals
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Keiser

Keiser M3i Indoor Bike

Keiser M3i Indoor Bike

£2,224.99
£2,224.99
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Taxes included. Shipping calculated at checkout.

Delivery Information


If an item is in stock, it will typically be dispatched promptly, with delivery expected within 14 working days.

If a product is out of stock or made to order, lead times can be up to 12 weeks.

Commercial and customisable orders generally have lead times of 6–12 weeks, depending on the product and supplier.

If an item has a longer lead time than expected, we’ll contact you to confirm before processing the order. If you’re not happy to wait, your order can be cancelled.

The cost of shipping for orders under £1000 will be calculated by weight at the checkout. 

Orders of £1000 qualify for free standard delivery.

For some brands, we offer free delivery regardless of order value. Where applicable, this will be clearly shown at the checkout and in the product description under the delivery tab.

If you require installation or white-glove delivery, please email info@truestrengthuk.com before or after placing your order. This service is quoted and scheduled separately.

Keiser M3i Indoor Bike 

The Keiser M3i Indoor Bike is built for performance, comfort and longevity. A premium choice trusted by gyms and fitness enthusiasts worldwide. Every order comes with a floor matt, M series tool kit for assembling and maintenance, media tray, stretch pads and Keiser M series app.

Read our blog if would like to know the difference between the Keiser bikes and which one is best for you.

Features

Unmatched Comfort and Fit: The innovative V-shaped frame easily accommodates riders from 4’10” to 7’ tall, ensuring every user finds their ideal position for proper alignment, power and comfort. Whether you’re training solo or managing a shared gym setup, it delivers the perfect fit for all body types.

Smooth, Silent and Adjustable Resistance: With magnetic resistance and infinite incremental adjustments, the M3i provides an ultra-smooth, whisper-quiet ride. You can fine-tune intensity seamlessly without friction, noise, or sudden jumps in effort.

Built for Durability and Low Maintenance: The rear-wheel design protects vital components from sweat and corrosion, while the self-tensioning Poly-V® belt drive eliminates the need for frequent adjustments. This results in a longer-lasting, more reliable bike that keeps maintenance time (and costs) to a minimum.

Fully Customisable for Ultimate Performance: With four-way adjustable handlebars and seat, plus robust adjustment knobs, riders can fine-tune positioning quickly and securely. 

Smart, Practical Design for Everyday Use: The M3i includes a media tray, stretch pads and water bottle holder to keep your essentials within reach. Transport wheels make it easy to move.


Size & Spec

Height

49" / 1245 mm

Width

26" / 661 mm

Depth

51" / 1296 mm

Weight

92 lbs / 42 kg


4.6 84+ online reviews
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4.6

84+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

Keiser M3i Indoor Bike Review Summary

4.6

84+ online ratings
The summary star rating & review is based on aggregated reviews of this product across the web. It cannot be altered by the merchant and can be verified by emailing support@onereview.app.

What people like

The bike is a highly regarded option for those seeking a high-quality indoor cycling experience, celebrated for its smooth, quiet operation and robust, commercial-grade construction. It offers impressive adjustability to comfortably fit a wide range of users and provides a challenging workout with its effective magnetic resistance. Reviewers also appreciate its versatile hybrid pedals and the convenience of not requiring an electrical outlet. Its solid build and reliable performance make it a favored choice for both home and studio use.

Pros

  • Quiet & Smooth: Reviewers consistently highlight the exceptionally quiet and smooth riding experience due to the magnetic resistance and rear-drive flywheel.
  • Highly Adjustable: The bike offers extensive four-way adjustability for both handlebars and seat, accommodating a broad spectrum of rider heights and sizes.
  • Durable Construction: Praised for its robust, commercial-grade build with a stable steel frame, ensuring longevity and solid performance.
  • Versatile Pedals: Features dual-sided hybrid pedals with toe cages and SPD clips, catering to different footwear and rider preferences.
  • Bluetooth Connectivity: Includes built-in Bluetooth for syncing with various cycling apps to track workout data and progress.
  • No Electricity Needed: The self-powered design allows for flexible placement without the need for an electrical outlet.
  • Responsive Resistance: The lever-style magnetic resistance system provides precise, smooth, and quick adjustments during rides.
  • Media Tray Included: Comes equipped with a sturdy media tray to securely hold a phone or tablet during workouts.

Cons

  • Premium Price Tag: The bike is considered expensive, reflecting its commercial-grade quality, which may be a significant investment.
  • Basic Console: The display is relatively simple, lacking a built-in touchscreen or advanced interactive features often found on similarly priced competitors.
  • App Connectivity Issues: While Bluetooth-enabled, some users report challenges with the official app and difficulty transferring workout data reliably.
  • Seat Comfort/Stability: The seat is described as adequate but can reportedly loosen over time and may require an upgrade for extended comfort.
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    Elliot, Birmingham

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Why Buy From Us?

True Strength UK is your trusted partner for premium gym equipment, whether you’re building a business or your dream home setup.

At True Strength UK, we don’t just sell fitness equipment, we help you create the perfect training space, without the stress. From quoting and finance to delivery and support, we handle everything so you can focus on what matters most: helping people build strength and success. Read our About Us page to find out more.

For Gym Owners, We’re With You Every Step of the Way

Opening or upgrading a gym is a big commitment and we know the process can feel overwhelming. That’s where we come in.

When you buy through True Strength UK, you’re not just choosing equipment, you’re choosing a partner who’ll hold your hand through the entire buying journey.

Here’s how we make it easy:

Personal Support: We’ll talk through your goals, space and budget to find what truly fits your gym.

Finance Options: We can help arrange finance to spread the cost and make your investment manageable.

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All in One Place: No need to spend hours on multiple brand websites, we can source it all for you, just let us know what you want!

Hassle-Free Delivery: We’ll coordinate shipping and ensure everything arrives smoothly and on time.

Think of us as your one reliable port of call for commercial gym projects, from start to finish.

If you are a gym owner or in the process of setting one up, please don't hesitate to reach out to us on info@truetrengthuk.com to chat further. If you would like a particular product and don't see if on our website then we can let you know whether we can supply that.

 

For Home Gym Customers we Offer Big Brands and a Personal Touch

Setting up your own gym at home should be exciting, not complicated. Whether you’re building a full training space or just adding one key piece of kit, True Strength UK gives you the best of both worlds:

Top Fitness Brands: We supply trusted, high-quality names used by professional gyms.

Simple, Smooth Shopping: Our website is easy to navigate, with clear product info and secure checkout.

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Personalised Experience: We take the time to understand what you’re looking for and recommend what suits your space, style and training goals.

Whether it’s a squat rack for your garage or a full studio fit-out, we make the process straightforward and personal.

Why True Strength UK Stands Out

We combine industry knowledge, personal service and brand access in one place, something you won’t get from big-box retailers or brand-specific sites.

With True Strength UK, you’ll save time, avoid stress and feel confident that every detail is handled.

Go to our Contact Us page to get in contact.

Because true strength isn’t just about the weights you lift,
it’s about having the right support behind you to reach your goals.