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Comment: ORANGE AS PICTURED-Very clean used unit, preassembled, unit will ship strapped onto a pallet

Keiser M3i Indoor Cycle Bundle

4.7 4.7 out of 5 stars 590 ratings
$1,999.99

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Gray
Brand Keiser
Special Feature Distance Travelled Monitor
Color Gray
Recommended Uses For Product Indoor
Maximum Weight Recommendation 350 Pounds
Model Name m3i
Drive System Belt

About this item

  • Bundle includes: Keiser M3i Indoor Cycle, Media Tray, Stretch Pads, Floor Mat
  • Industry’s First V-Shape Frame: Enables M3i to mimic different road-bike frames by allowing seat and handlebars to be raised in conjunction to adjust for riders of all sizes, from 4-foot-10 to 7-feet tall
  • Bluetooth-enabled Interactive Cycling: Riders can connect to the Keiser M Series app and train with real-time graphs for power and heart rate, cadence range dials, FTP zones and more for a limitless array of workouts
  • Durability and Beauty: Simple, elegant design makes the M3i extremely durable, virtually maintenance-free, and a sexy showpiece for your home or gym
  • Made in the USA: The M3i is ONLY indoor bike built in the United States, ensuring the tightest quality control
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Product Description

KEISER M3i - THE ULTIMATE INDOOR BIKE

The Keiser M3i is the result of 20 years of engineering and manufacturing expertise and is designed to exceed the demands of indoor cyclists. The M3i combines the durability of a commercial-quality, American-made indoor bike with advanced connectivity to keep your rides at home, gym or health club motivating and engaging.

Durable and Virtually Maintenance Free

  • The Keiser M3i is the ONLY indoor bike built in the United States, ensuring the tightest quality control
  • Sweat is the #1 enemy of indoor cycling bikes. With a rear-mounted flywheel, the most vulnerable components on the M3i are kept out of the “sweat zone” safeguarding your bike from corrosion. The angled channel on the bike frame also flows excess fluid away from the drive-train.
  • The single Poly-V belt transmits very high loads over very small pulleys, achieving a road-bike feel without the need for a heavy, perimeter-weighted flywheel or complicated drive-trains
  • The belt’s pre-tensioned design requires zero adjustments, and the drive-train requires no maintenance other than routine inspection

Smooth and Whisper Quiet

  • The simple, two-magnet eddy current resistance system combined with a Poly-V belt produces a smooth ride, without the noise and vibration of a cog belt
  • Keiser’s attention to detail is unmatched. An integral part of our manufacturing process involves placing a sensitive microphone against the frame cover of the bike and giving the crank arms a heavy spin. If the bike doesn’t pass the strict noise test, it goes back for inspection.

Bluetooth-Enabled Computer: Get Connected

  • The M3i was the FIRST indoor bike to offer Bluetooth LE connectivity to the cycling computer. With the Keiser M3i you have endless options, without having to commit to monthly fees.
  • Put your own tablet on the media tray and enjoy your favorite streaming indoor cycling classes
  • Join a pack of cyclists from all over the world in riding through virtual trails, or going head-to-head in a velodrome race
  • Download the FREE Keiser M Series app to enjoy data tracking and guided cycling sessions at home, gym or health club.

keiser m3i, keiser indoor bike, exercise bike

WHY THE KEISER M3i?

It's simple. Because 'Good Enough' Isn't.

The Keiser M3i Indoor Bike provides a smooth, quiet and dependable ride, while the Bluetooth computer enables you to stay on top of all the latest and greatest from the indoor cycling world.

Check out our “Greatest Hits” below and see why Keiser is both a show-piece, and a show-stopper.

keiser m3i drive train

THE FIRST DRIVE TRAIN SPECIFICALLY DESIGNED FOR MAGNETIC RESISTANCE

The competition endorsed Keiser’s engineering by following our lead on using magnetic resistance. They should also have copied our drive-train design.

Our simple drive-train, with just a single Poly-V belt, produces the higher speeds necessary for a lighter weight aluminum flywheel to provide the kinetic energy and magnetic resistance to simulate a quality road-like experience.

No required maintenance, zero adjustments: The belt’s pre-tension design also requires zero adjustments, and the M3i drive-train requires no maintenance other than routine inspection.

The Poly-V belt is THE choice of automotive manufacturers: The Poly-V belt is the preferred choice to run the accessories on the front of car engines, because it’s so quiet, durable, and reliable.

keiser m3i, keiser indoor bike

LIGHT, REAR-WHEEL DESIGN: More Reliable and Better Protected

Keiser proudly stands behind our rear-mounted, lightweight flywheel design.

Our fast-spinning flywheel gives you the same resistance as the heavy, perimeter-weighted competition, without the bulk and added weight of a 40+lb. flywheel.

Less maintenance, longer bike life.

Other indoor bikes mistakenly place the rider’s “sweat zone” directly over the flywheel and other vulnerable mechanisms – an obvious engineering flaw. With superior sweat protection, M3i owners can save money through lower maintenance costs and a longer bike life.

keiser m3i computer

THE DIGITAL SYSTEM

The M3i digital display is simple, elegant and provides certifiably accurate data. No buttons to sweat on, no hard-to-decipher or overcomplicated read-out.

Just the magnetic resistance and our V-shaped frame, Keiser was the first to incorporate power output in “Watts” on an indoor bike. Combine the accuracy of our computer with Bluetooth technology and you have the data you need, with the apps and indoor cycling classes you want.

  • The M3i digital display is simple, with everything a rider needs to know on a single screen
  • Backlit display automatically turns on when the room light drops below a set level and remains on, unlike other bikes
  • No buttons – eliminating inconvenience and a cause for wear and tear
  • Download the Keiser M Series or M Series Pro app to easily log every detail of your ride and track your progress

Product information

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Keiser M3i Indoor Cycle Bundle

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Important information

Legal Disclaimer

The use of any exercise equipment, including the Keiser M3i bike or any fixed gear bike, without proper instruction and supervision violates the terms of this agreement for purchase of such products. The inability to stop pedaling on a fixed gear bike before the flywheel stops may be dangerous to anyone riding, especially anyone that does not recognize or respect the potential danger. Therefore, users, agents, or anyone directing the use of said equipment shall determine the suitability of the product for its intended use, and said parties are specifically put on notice that they shall assume all risk and liability in connection herewith.

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
590 global ratings

Customers say

Customers like the sturdiness, quality, noise level, ease of assembly, and smoothness of the stationary bicycle. For example, they mention it's rock-solid, simple enough to assemble, and well documented. They appreciate the incredibly smooth ride and pedal turn. That said, they're also satisfied with value, adjustability, and appearance.

AI-generated from the text of customer reviews

121 customers mention117 positive4 negative

Customers are satisfied with the sturdiness of the stationary bicycle. They mention that it has an amazing build quality, is rock-solid, durable, and capable. They also say that it is a high-end, gym-quality stationary bike. Customers also appreciate the medium-firm foam padding and that the box arrived in good shape.

"...All have now been discarded. The M3i far exceeds them all in quality and design, an better fits my current needs." Read more

"Very high quality - health club/gym level. For personal at home use it'll last forever...." Read more

"...Pros:-Amazing build quality, seemingly on par with or exceeding the Bike+...." Read more

"...Everything about this bike seems to have been well designed and is extremely sturdy and durable...." Read more

117 customers mention117 positive0 negative

Customers are satisfied with the quality of the stationary bicycle. They mention that it is an awesome bike, fantastic spin bike, and a very nice piece of equipment. Customers also appreciate the design and performance of the bike. They say that it truly replicates meaningful workouts.

"...The unique design or the crank arms has increased my upper leg muscle strength. Use of the industry standard pedal and seat attachments has..." Read more

"...-The pedal spacing is a little more generous and thus better for my hips...." Read more

"...When you ride this bike it is whisper quiet! THis is great for the apartment setting I currently live in where I don't want to disturb the neighbors...." Read more

"This is by far the best spin bike I have ever ridden, I have done hundreds of classes in different gyms for the past 15 years...." Read more

104 customers mention95 positive9 negative

Customers like the noise level of the stationary bicycle. They mention it's super quiet, soundless, and uses wind resistance.

"...The M3i makes no sound I can hear in use, is very comfortable to ride, and has needed no repairs since purchase...." Read more

"...Bike looks like a work of art and is silent when riding. The bike is adjustable and the ride is smooth...." Read more

"...When you ride this bike it is whisper quiet! THis is great for the apartment setting I currently live in where I don't want to disturb the neighbors...." Read more

"...I would say that it is silent but if you listen you can actually hear a slight hum, the sound is nothing that can be heard from more than a few feet..." Read more

103 customers mention88 positive15 negative

Customers find the assembly of the stationary bicycle simple enough to assemble. They also appreciate the clear diagrams that illustrate the assembly steps. Some mention that the video makes it look easy.

"Assembly of the Keiser m3i was easy, but the packaging took over an hour to remove...." Read more

"...Needless to say it arrived in perfect condition and Keisers assembly video along with the printed instructions made assembly (by one person) very..." Read more

"...Additional thoughts:-The bike was super easy to assemble...." Read more

"...Assembly was pretty simple. The directions are well-written...." Read more

79 customers mention79 positive0 negative

Customers like the smoothness of the bicycle. They mention the ride is incredibly smooth, the pedal turn is very smooth, and the resistance adjusts seamlessly. They also appreciate the quiet ride and the smooth shifting provided by the magnetic resistance. Overall, customers are satisfied with the riding experience and recommend the product to others.

"...The M3i makes no sound I can hear in use, is very comfortable to ride, and has needed no repairs since purchase...." Read more

"...The bike is adjustable and the ride is smooth...." Read more

"...Solid, great ride - it can be used as a spin bike or as a road bike trainer - exactly what I am looking for. Very quiet...." Read more

"...I love the bike, how smooth it runs, and the huge range of resistances available. It seems well-designed and like it will hold up...." Read more

62 customers mention49 positive13 negative

Customers like the value of the stationary bicycle. They mention it's a high-end, gym-quality stationary bike, and a good investment for your health.

"...Overall, I'm VERY pleased with this Keiser bike. This was money well spent." Read more

"...Now I will say it’s worth the cost. My wife and I use it at least every week and usually a few times each week...." Read more

"...In summary, this is a high-end, gym-quality stationary bike. If it meets all of your needs like it did mine, then you get what you pay for...." Read more

"...The price is competitive and I believe it's a great price for the product...." Read more

54 customers mention49 positive5 negative

Customers like the adjustability of the bicycle. They mention it's sturdy, simple enough to assemble, and smooth. The seat and handlebar are adjustable both up/down and forward/back. The bicycle has 4 ways to adjust the seat height, handlebar height, the seat moves forward, and the resistance.

"...Bike looks like a work of art and is silent when riding. The bike is adjustable and the ride is smooth...." Read more

"...-More microadjustments for the bike handles, which allows you to dial in the comfort...." Read more

"...this feature adds vs some other styles and the handlebar and saddle are easy to adjust...." Read more

"...Handlebar. Very adjustable (M3 Plus), but I'm not thrilled with the timetrial position; it's not really comfortable for me in that position...." Read more

49 customers mention49 positive0 negative

Customers are satisfied with the appearance of the stationary bicycle. They mention it has a beautiful design, is well-built, and is a great addition to their house. Customers also appreciate the computer and display.

"...Bike looks like a work of art and is silent when riding. The bike is adjustable and the ride is smooth...." Read more

"...Everything about this bike seems to have been well designed and is extremely sturdy and durable...." Read more

"...It seems well-designed and like it will hold up. However, there are some big annoyances that will cost you extra $$$ to overcome." Read more

"...Looks OK, but it's clearly not a good idea to bang hard things into them.- Saddle. My wife thinks the saddle is fine...." Read more

Strong, sturdy, whisper quiet, great features
5 Stars
Strong, sturdy, whisper quiet, great features
UPDATE: added seat pictures for the person who asked if the seat could be swapped out.ORIGINAL REVIEW:This is exactly the bike I wanted. I had an evaluation session with a personal trainer, and all I was doing at the time was running for exercise. She told me I needed to mix things up and try doing a spinning class at least once a week. In my previous job, I was able to go to a spinning class at the gym at 11 a.m. once per week. Then I started a new job and couldn't do that anymore, so I wanted to get a spinning bike for home.The first bike I had at home was recommended by my spinning class instructor. It was a LeMond Revmaster. It was very sturdy and worked great. What I missed were the metrics I got from the bike computers on the spinning bikes at the gym, specifically the indication of power output in watts. The LeMond had a simple twist-dial resistance mechanism that wasn't calibrated, so I couldn't consistently set it to a given power output, and it tended to squeak and make it untenable for anyone else to be in the basement when I was riding the bike. So I started looking for a new bike.The first bike I bought was another big-name brand that starts with Nor and ends in track. It was a total lemon. It was unstable and wobbly. It had no fly-wheel weight, so you couldn't comfortably stand up and pedal. Although it indicated power output in watts, it wouldn't show you a GRAPH of power output or offer any workouts based on power output. Their app with iFit was fundamentally flawed in that the graphs and workouts were all based on "speed" from RPM, which is artificial and doesn't take into account resistance and how hard you were working. Their app was unstable and crashed frequently, and they wanted you to sign up for their monthly subscription service like the other big-name internet-connected spinning bike that begins with Pel and ends in Ton. It took a lot of time and effort, but I finally got that company to take back their wobbly piece of junk and give me a refund.So I started shopping around again. The Keiser looked strange to me in the pictures on the internet. I thought it would be wobbly. I found a local gym that had the Keiser, and I went and asked them if I could just check it out. It seemed pretty sturdy to me, so I bought one.Thanks to the other reviews here on Amazon, I did NOT pay for the "expert assembly" and I assembled it myself. As it turns out, I had most of the tools already. I only needed the crows feet, which were a pain to get the two specific sizes they needed. Assembly was pretty simple. The directions are well-written. Other people here have posted here that Keiser has a good video to help with assembly, too, but I didn't need the video.I've used the Keiser M3i bike (UPDATED 11/1/2020) SEVERAL days per week for over a year now, and I like it A LOT. It's leaps and bounds better than the previous lemon I bought.+ It's very solid and sturdy. It doesn't wobble at all.+ It has a good size weighted fly-wheel, so you can stand-up and pedal.+ It has magnetic resistance and barely makes a whisper of noise.+ The resistance control is very simple and calibrated to show you a number of what "gear" you're in on the display.+ The display shows you your RPM, Power output in Watts, Heartrate (using Polar HRM), "gear" (resistance setting), calories burned, and distance.+ The app on my phone shows me a graph of my power and heartrate vesus time and keeps a record of my work stats.-- Minor downside: They don't automatically sync up the data with MapMyFitness, but they DO export the data in TCX file format, which you can manually import to MapMyFitness. I can see all my workout stats on MapMyFitness from downloading the TCX file.Overall, I'm VERY pleased with this Keiser bike. This was money well spent.
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Top reviews from the United States

oldandbent
5.0 out of 5 stars I love my Keiser M3i.
Reviewed in the United States on August 3, 2022
Color: Raven BlackVerified Purchase
Assembly of the Keiser m3i was easy, but the packaging took over an hour to remove. A lower corner of the packaging was torn off when delivered, but the double level packaging assured that no cycle components were damaged.

The M3i makes no sound I can hear in use, is very comfortable to ride, and has needed no repairs since purchase. The unique design or the crank arms has increased my upper leg muscle strength.
Use of the industry standard pedal and seat attachments has allowed simple replacement of those items to meet my specific needs. The supplied computer provides all the data I want to evaluate my exercise, including current and average ride rpm, accumulated ride kilo calories, ride time, ride miles, and life time odometer.

Odometer on my M3i indicated over 16000 miles in July 2023. When purchased, I only rode the M3i about 3 times a week, alternating with road cycles and other forms of exercise. Currently I ride the M3i 18 odom. miles every day I am home. I am the sole user.

I am over 80 years old, was an active road cyclist from age 5 to age 78 but ended road riding in 2021 because of heat prostration (most days here reach over 90 degrees). Now, any exercise has to be in air conditioning. I cannot stand or walk without crutches or other support or control my ankle, which means my feet must be placed on cycle pedals centered under my heels with foot angled upwards on outside edge. Because of this I cannot use cycle shoes or the Keiser pedals but must wear flat soled shoes on flat pedals. Leg injuries require that i wear tight padded cycle shorts when sitting on a cycle saddle.

I was an active outdoor cyclist from age 5 to 79, and have owned and used many types, brands and qualities of road cycles, as well as other exercise devices such as fan and friction resistance indoor cycles, other cycle exercise machines and other exercise devices (weight lifting and treadmill). All have now been discarded. The M3i far exceeds them all in quality and design, an better fits my current needs.
13 people found this helpful
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Mike
5.0 out of 5 stars Great spin bike. Worth the price. Q factor is perfect for an average sized American.
Reviewed in the United States on December 4, 2020
Color: Raven BlackVerified Purchase
Very high quality - health club/gym level. For personal at home use it'll last forever. Shipping packaging was the best I've ever seen, removing the packaging took longer than the assembly. Needless to say it arrived in perfect condition and Keisers assembly video along with the printed instructions made assembly (by one person) very easy. Bike looks like a work of art and is silent when riding. The bike is adjustable and the ride is smooth. Another review complained about the Q factor - that's nonsense, the Q factor is fine for average people only elite small framed European Tour D France riders will want a smaller Q factor. You get what you pay for in this case.
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Jeffrey
5.0 out of 5 stars So far, impressed! Prefer over the Peloton Bike+
Reviewed in the United States on May 16, 2022
Color: Raven BlackVerified Purchase
After ordering, not loving, and returning a Peloton Bike+ (for a higher price than I paid for the M3i, since it was before their recent price drop), I was looking for something similarly well built that didn't lock me in to a restrictive pay-to-use model that did not allow for me to stream music, videos, etc. without hacking the machine. After much research, I opted for an M3i to simply pair with my iPad. Despite the screen obviously not being integrated or as large as what comes with the Peloton Bike+, this bike ticked all my other needs. I've only just bought and assembled it with a few short test rides, but here are my initial thoughts in comparison to the Bike+:

Pros:
-Amazing build quality, seemingly on par with or exceeding the Bike+. I like way the flywheel for the M3i is better protected from sweat.
-More microadjustments for the bike handles, which allows you to dial in the comfort. I didn't have a problem with how the Bike+ was designed in this regard, but I could see some needing these adjustments for their comfort.
-Has pedals that double for SPD riding or casual caging for a regular shoe, allowing for others to use it too without needing a significant investment in $100+ shoes and clips.
-The pedal spacing is a little more generous and thus better for my hips. I wouldn't call the Peloton "too narrow" per se, but it was definitely not as comfortable for my body compared to the M3i
-Does not need to be plugged in
-Is lighter than and much easier to move around than the Bike+. Footprint is also smaller for the M3i comparatively.
-Although it is BYOD (bring your own devices) for the screen and audio, you can use/access whatever content you want and have access to for your rides.

Cons:
-No integrated screen for streaming content, not a connected outlet for charging to be powered by the energy of the bike itself.
-The M3i is a little louder (in the sense of additional white noise generated by the flywheel) compared to the Bike+, but it is NOT a loud bike.
-No software enabled "autofollow" of resistance with guided work outs using the peloton app, requiring a more "manual ride" compared to the Bike+.
-No access to the Peloton leaderboard when using the app. This did not matter to me, but may matter to others.

Additional thoughts:
-The bike was super easy to assemble. Including opening all the boxes, doing inventory of all the parts, reading the instructions pre-install as well as during install, and the building itself, it was maybe 60-75 min of time required. If you've ever built a smaller project from ikea before, you'll be well prepared for success here.
-If I remember, I'll try to update this review in 6 months with more detailed thoughts once i've gotten the full experience.
Customer image
Jeffrey
5.0 out of 5 stars So far, impressed! Prefer over the Peloton Bike+
Reviewed in the United States on May 16, 2022
After ordering, not loving, and returning a Peloton Bike+ (for a higher price than I paid for the M3i, since it was before their recent price drop), I was looking for something similarly well built that didn't lock me in to a restrictive pay-to-use model that did not allow for me to stream music, videos, etc. without hacking the machine. After much research, I opted for an M3i to simply pair with my iPad. Despite the screen obviously not being integrated or as large as what comes with the Peloton Bike+, this bike ticked all my other needs. I've only just bought and assembled it with a few short test rides, but here are my initial thoughts in comparison to the Bike+:

Pros:
-Amazing build quality, seemingly on par with or exceeding the Bike+. I like way the flywheel for the M3i is better protected from sweat.
-More microadjustments for the bike handles, which allows you to dial in the comfort. I didn't have a problem with how the Bike+ was designed in this regard, but I could see some needing these adjustments for their comfort.
-Has pedals that double for SPD riding or casual caging for a regular shoe, allowing for others to use it too without needing a significant investment in $100+ shoes and clips.
-The pedal spacing is a little more generous and thus better for my hips. I wouldn't call the Peloton "too narrow" per se, but it was definitely not as comfortable for my body compared to the M3i
-Does not need to be plugged in
-Is lighter than and much easier to move around than the Bike+. Footprint is also smaller for the M3i comparatively.
-Although it is BYOD (bring your own devices) for the screen and audio, you can use/access whatever content you want and have access to for your rides.

Cons:
-No integrated screen for streaming content, not a connected outlet for charging to be powered by the energy of the bike itself.
-The M3i is a little louder (in the sense of additional white noise generated by the flywheel) compared to the Bike+, but it is NOT a loud bike.
-No software enabled "autofollow" of resistance with guided work outs using the peloton app, requiring a more "manual ride" compared to the Bike+.
-No access to the Peloton leaderboard when using the app. This did not matter to me, but may matter to others.

Additional thoughts:
-The bike was super easy to assemble. Including opening all the boxes, doing inventory of all the parts, reading the instructions pre-install as well as during install, and the building itself, it was maybe 60-75 min of time required. If you've ever built a smaller project from ikea before, you'll be well prepared for success here.
-If I remember, I'll try to update this review in 6 months with more detailed thoughts once i've gotten the full experience.
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15 people found this helpful
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Top reviews from other countries

Melissa McQuaid
5.0 out of 5 stars Love this bike!
Reviewed in Canada on December 3, 2021
Color: Raven BlackVerified Purchase
Bike works amazing! So quiet! Was really easy to set up although I still haven’t figured out how to change the mileage to KM. It connects to my Garmin Venu which is awesome! Arrived very quickly. Handlebars and seat adjusts so it suits pretty much anyone! A definite recommend for someone that plans on using it a lot
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A dopran
5.0 out of 5 stars good results
Reviewed in the United Kingdom on January 3, 2020
Color: Raven BlackVerified Purchase
Very easy to use lots of benefit
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