Keiser M3i Indoor Cycle Review
The Keiser M3i is an invention in the world of indoor cycling and spinning bikes. Keiser M3i indoor cycle was the first to feature a Bluetooth wireless computer to enable the riders to connect to the online platforms.
Keiser M3i indoor bike is the third model of Keiser M series bikes after Keiser M3 and M3 Plus and boasts better features. Whenever Keiser revolutionizes a new top-of-the-range exercise bike, there is a great deal of excitement among the fans, and that was definitely the case when the new Keiser M3i Indoor Cycle was officially launched.
In our Keiser M3i review we will disclose all the many pros and very little cons of this excellent spin bike. In terms of accuracy testing, the Keiser initiated a new venture that was never attempted before.
The Keiser M3i was the first indoor cycle to receive EN ISO 20957-1 certification by TUV Product Services, global testing, inspections, and certification organization. This means you can see accurate data of your performance on the LCD.
There are many reasons why riders like this Keiser spin bike but the most important ones are the exceptional durability of frame and parts and also the quiet maintenance-free operation.
Having said that, this bike weighs only 85-lbs in compact dimensions that can fit pretty much everywhere and support up to 300-lb. Its lightweight and the silicon transport wheels make it really easy for users to move the bike. Meaning, you don’t have to be super strong to move this indoor cycle from one place to another.
With everything being said, there are pros and cons that you need to know before purchasing the Keiser M3i to see if it suits your needs and budget. For example, you should know that Keiser M3i indoor cycle is the second most expensive Keiser M series spin bike after Keiser M3iX.
Keiser M3i Indoor Cycle Table of Content
- Keiser M3i spin bike Apps (compatibles and incompatible) and full specs
- M3i new feature (Keiser M3i vs Keiser M3+)
- Drive mechanism
- Magnetic resistance
- M3i Flywheel
- Frame, handlebars, seat, pedals, and warranty
- Heart rate monitor
- Bottom line
Keiser M3i Specs:
- Q-Factor: 197 mm equals to 7.75 inches
- Drive Mechanism: Belt
- Warranty: 5 Yrs on Frame and 3 Yrs on mechanical parts
- Resistance type: Magnetic
- Resistance level: 24-Levels
- Resistance handle: Lever/shaft
- Displays the current gear level: Yes
- Water Bottle Holder: Yes
- Tablet Holder: Yes
- Fixed Gear: Yes
- Transport Wheels: Yes
- Foot levelers: Yes, 4 points
- Chest Strap: A Polar-brand Bluetooth compatible strap included
- Dimensions: H 45” X W 26” X L 49”
- Item weight: 85 lbs
- Weight capacity: 300-Lbs
- Flywheel: 8-Lbs
- Programs: None
- Bluetooth: Yes 4.0 Standard
- ANT/+: No
- Data storage: Yes, on the Apps
- Console: Backlit, displays the Time, Current Gear level, Distance, Speed, Odometer, RPM, Watts, Heart Rate, and Calories
- Pedals: Keiser’s new revolutionary design Toe cage and spd pedals
- Power Source: 2-AA batteries included
- Handlebar Adjustment: Horizontal & Vertical
- Seat Adjustment: Vertical & Horizontal
- Protection Mat: Included
- Assembly: Required, all tools included
- User Height: Min 4.10″/ Max 6.7″
- Bkool (Available in the ios and Andriod)
- Keiser M3 Series Pro apps (Available in the iOS and Android)
- GOInd (available in the App Store)
- Impowered BeTested (available at Google Play)
- Impowered BeTrained (available at Google Play)
- Trainer Road
- The Sufferfest
- Studio Sweat On-Demand
How to join these spinning Apps?
Keiser features Standard Bluetooth 4.0 but not ANT/+. Unfortunately, their BLE/Bluetooth can’t communicate with the most popular cycling Apps mentioned above. Although, it might connect to some of them, it doesn’t synch the cadence to these apps. Here are your options in order to properly connect the Keiser M3i spin bike with the Zwift, Peloton, Train Road and other Apps.
Keiser M3i Converter
It was released in December 2018 and it is currently available in the US and UK. The converter is a small device that attaches to the backside of the M3i’s media holder and runs on a coins cell battery that lasts 3 months.
Once you double-tap the converter, it will automatically search and connect to the bike. Using this converter by Keiser, you can join the Zwift and many other cycling apps.
The converter will enable the bike to send the RPM and the Watt to the connected fitness apps. The M3i converter comes with a battery, instructions, 2 pieces of hook and loop adhesive tapes.
Currently (February 2021) the Keiser M3i’s converter is included in the M3i bundle. Normally, the converter costs around $190 but you get it for free when buying the Keiser m3i cycle.
Purchase a Wahoo Speed sensor and stick them to your pedal, download the FREE Wahoo App, move the crank arms to wake up the sensors, then turn on your device’s Bluetooth and there you will see the option to connect with the Wahoo sensors.
After connecting the sensors to your device download the cycling training app that you like and join the games, simple as that. The free Wahoo App is available on Google Play and Apple Store and allows you to track and save your daily progress on your account.
It costs less than $50 and takes less than 5 minutes to stick them to your bike’s crank arms. Wahoo speed sensor features Bluetooth 4.0 and ANT/+ connectivity. They can connect to pretty much all your Bluetooth-enabled Android and iOS devices.
There are many ANT+ and Bluetooth-enabled Watt pedals that transfer Power, Cadence/RMP, and Speed to your device. These pedals come with spd clips and install like any other pedal to your Keiser M3i bike. However, this option is very pricey. Some of the most popular high-tech pedals are Assioma DUO Power Meter, Garmin Vector 3 and Powertap P1 Pedals.
Wahoo vs Power Meter Pedals. Wahoo sensors only transfer the Cadence and Speed while the Power meters transfer Watts, Cadence, Speed, Foot balance, MPH and even more workout details. Obviously, Power Meters are the better option but they also cost up to 15 times more than a set of Wahoo sensors.
What is new on Keiser M3i indoor cycle
- Re-designed Pedals
- Bluetooth Enabled Console
- New color
- Media Tray
Keiser M3i is currently one of the most sold and loved spin bikes in the spin classes worldwide. The reason for it is the technology and engineering behind it. M3i is the advanced version of the M series bikes with pretty much no flaw to point out.
Keiser engineers went a long way and improved everything that was missing in the previous versions: the sexy combination of black, red and steel color, the Bluetooth connectivity that allows you to record your workout data and, last but not least, the new revolutionary pedals.
Keiser M3i indoor cycling bike overview
Keiser M3i indoor bike is one of the most beautifully designed with the flywheel in the back for better protection from sweat and corrosion. The V-shape frame helps to accommodate all sizes of riders, it also allows easy mounting and dismounting.
This Keiser spin bike features commercial quality solid stainless steel frame and heavy-duty aluminum parts for gym owners and riders. The quality is beyond questioning and that’s one of the reasons it has a warranty of 3 years for parts and 10 years for the frame.
The single belt requires little to no maintenance and makes this indoor bike very quiet. Forget about having a tool and adjusting the belt, it requires no adjustment. The Keiser M3i’s magnetic resistance system technology is another major factor in giving you a smooth whisper-quiet ride.
What makes the Keiser M3i better than the M3 plus is the revolutionary re-designed Keiser Bike Pedal and the Bluetooth wireless signal for open API for tablets and smartphones. The only thing that was missing on M3 Plus was Bluetooth and we are thankful to the Keiser engineering department for addressing the issue.
M3i spin bike by Keiser can revamp the look of any room or gym. Especially so after adding the new black and red color and Bluetooth to save the workout data.
The Keiser M3i Indoor Cycle is designed for tense cycling training and gives one of the most real cyclings feels of an outdoor road bike. Overall Keiser M3i spin bike is a great cardio workout bike and features the simplest of engineering designs and fully made in the USA to ensure the high quality.
Keiser M3i drive system
Keiser M3i features belt drive which gives this spin bike a very smooth ride. Belt drive also makes the bike very quiet and free from everyday maintenance. Unlike a chain drive that breaks more often, needs adjustment and lubrication.
The Keiser M3i features a single belt drive which requires zero adjustments. The belt transfers the power from a big pulley to the little pullies and finally turns the flywheel. This drive mechanism creates a high gear-ratio which is one of the reasons you won’t get the up and down pedal motion and you get the real road feel cycling despite the light-weighted flywheel.
Keiser M3i indoor exercise bike console
In this Keiser M3i review you will learn everything there is to learn about this bike. Just like other Keiser M series spin bikes, you get a digital display with a light sensor at the top of the console that turns on the back-lit when the room is dark.
If the room light is good enough to read the number without the back-lit,
then it stays off. It’s a good feature for longer battery life.
The LCD display is not touch-screen and doesn’t have any buttons. As soon as the crank arms turn, you will be able to see the values of your workout.
There are four new features on the Keiser M3i console.
- Interval training set up
- Bluetooth for data storage
- Bike ID# set up
- Mile and kilometer set up
The workout values that you can see on the Keiser M3i spin bike console:
- Revolutions Per Minute (RPM)
Meaning how fast you pedal per minute. You can read the manual to see the max RPM you can do because there is a limit for your own safety.
This tells you how much power you are generating, it’s an important feature, especially in the spin classes. Every few seconds the display alternates between watts and calories burned. Every time for 2 seconds you see the calories and for 6 seconds you see the watts.
- Heart Rate
The handlebars don’t have pulse sensors. In order to see the heart rate, you need to wear a polar strap which is not included with the bike. If you see an O, it means you are either not wearing a strap or your strap is not compatible.
- Elapsed Time
You will see the total time of your exercise.
The current resistance level you are spinning is shown here. Keiser M3 and M3+ have 24 levels of resistance
When you start pedaling for a few seconds, it shows the distance of your workout since you bought the bike. After few more seconds, it starts showing the distance result of your current exercise.
- How to reset the computer
- Two ways to reset the computer. You can move up and down the gear shifter twice or leave the Keiser M3 Plus indoor cycle for 60 seconds.
- 60 Seconds
If you stop pedaling for 60 seconds, the workout data will be automatically reset to zero. It’s one of the drawbacks of Keiser M3 Plus indoor cycle, especially if you need to answer a call or open the door for a minute.
- Average workout calculation
To view averages of RPM, watts, and heart rate at any point in the workout, stop pedaling for three seconds. This will flash your averages until you start moving again or until the computer goes to sleep after 60 seconds.
- Resetting ride averages, elapsed time and distance
To reset your averages during the workout, stop pedaling for three seconds and the averages will start to flash, while they are flashing move the gear shifter from bottom to top two times quickly. This will reset your workout information back to zero.
- Keiser M3i LCD battery and how to replace it
To test the computer batteries and see if they are charged, pedal until the computer “wakes up”. If the battery is low, a “LO-BA” will display at the bottom of the screen. To replace the batteries unscrew the back of the computer housing, remove the old AA batteries and replace with a set of two new AA batteries.
- Interval training
To initiate an interval, starting from a high gear drop the shifter handle to gear 1 for 1/4 of a second and lift it up to a higher gear immediately. “inL #” will display confirming the interval has started.
Repeat the above steps to end the interval. When the interval ends the computer will display “inL End” and the averages for that interval will blink.
- Bluetooth and compatible Apps
According to the Keiser website, some of the apps that support their M series bikes are:
#1. Keiser M3 Series Pro apps (iOS and Android)
#2. Empowered BeTested (Android)
#3. Ride Buddy Buckets (iOS)
#4. GOInd (iOS)
#5. Empowered BeTrained (Android)
What we do like about the Keiser M3i indoor cycle console?
Bluetooth: it was a big issue with the older Keiser bikes as you couldn’t save your workout data on the bike or online. M3i is featured with a Bluetooth that allows you to connect to the Keiser App on Android and iOS platforms. You will need to create an account with your basic information, save the daily workout values online and share it with other cyclists. You can also place your phone or tablet on the media tray (included with the bike) and watch your performance data on the bigger screen.
The distance traveled is displayed in Odometer in the default settings. It’s somewhere between kilometer and mile but if you want to set it to miles or kilometers, watch the video below or read the M3i manuals. Note: At the time of purchasing you can also ask the retailer to set up the M3i trip distance to miles.
Keiser M3i spin bike has 24 levels of magnetic resistance for all ranges of cycling from easy to medium and intense training, while most spin bikes come with less than 20 resistance levels.
Keiser M series features Eddy Current magnetic which means nothing comes in contact with the flywheel. It’s also very quiet and smooth because no parts touch each other. When you add resistance and bring tension on the bike, the two opposing magnets hover on both sides of the flywheel to give resistance. So, the more tension you give to the bike the more surface of the flywheel gets covered by the magnets. There is about two quarter-sized magnets on either side of the flywheel.
Magnetic resistance does not come in contact with the flywheel, therefore, there are no worn-out parts. The other types of resistance are friction and brake pads. They both make noise and need maintenance.
Another good feature of Keiser M3i is the gear shaft and the current gear is displayed on the LCD. Most spin bikes have a knob for resistance adjustment and it’s difficult for the rider to go back to his last tension gear because it’s not written on most bikes.
However, Keiser M bikes come with a properly designed shaft right in front of the rider at the bottom of the handlebars for easy gear switching.
The gear level is displayed at the bottom left corner of the LCD which is also a very unique and useful feature. You can also use the gear shaft for the emergency brake. To do so, you need to move the shaft all the way up and hold it there. This way you bring more tension to stop the flywheel from turning.
Note: You can also set up your bike to do interval training and it’s a new feature on Keiser M3i indoor cycle. Read the above Console Paragraph for instructions.
Keiser M3i flywheel weight
Keiser M3i spin bike features an 8-lb steel flywheel. It’s proven that for spin bikes with magnetic resistance, single belt drive and the combination of big and small pullies, the flywheel weight is not a factor of smooth pedal motion.
All the Keiser M Series bikes have 8-Lb flywheels and still, they manage to give you the most natural road feeling in indoor cycling that you can get. The reason behind this is the belt, magnetic resistance, and both the big and small pullies.
It’s not freewheeling, which means when the flywheel turns, the crank arms and the pedals turn too. If you pedal forward, the flywheel turns forward as well. If you pedal backward, the flywheel turns backward. This great indoor cycle gives you a 360-degree pedal stroke which makes the motion more fluid rather than up and down.
Frame and maintenance
Keiser indoor bikes are top-rated and designed for commercial use, meaning they are built to be used multiple users in the spin classes and clubs for hours daily. So, there is no doubt that Keiser M3i indoor exercise cycle has one of the best heavy-duty steel frames among the spin bikes in the entire market.
The perfectly designed dimension of this spinning bike helps to keep the bike and the rider steady even during the most energetic and intense exercises. The painted and the aluminum parts are very durable against the sweat.
The main material used in the frame of Keiser M3i indoor bike is heavy-duty aluminum and steel. The new sexy dark black and shiny red colors, simplicity and strength design on Keiser M3i can attract even those who don’t do the spinning workout. The V-shape frame helps to get on and off the bike easy. It also helps to protect the bike from sweat. Keiser M3i frame requires little to no maintenance.
The base has four feet, providing maximum stability on uneven surfaces. For better protection of the floor, you can purchase a mat to use under the bike as well.
Note: Three feet of the frame are fixed and can’t be adjusted but one foot is adjustable. The leveler’s foot is located on the left rear corner of the base frame. By rotating the foot inward or clockwise you can adjust the base on uneven surfaces.
Read the list of the parts you need to check daily, weekly and monthly:
- Wipe off the sweat after each session
- Check and re-torque crank arms and pedals, weekly for the 1st month
- Clean with warm water and a soft towel, weekly
- Check computer for low battery life, weekly (pedal until the computer “wakes up”. If the battery is low, a “LO-BA” will be displayed)
- Check and re-torque crank arms, pedals and mainframe nut, monthly
- Wax those areas most in contact with sweat, monthly
- Lubricate adjustment handle threads, monthly
Handlebars of Keiser M3i indoor cycling
Keiser M3i handlebars are designed differently and unique from any other spin bike on the market.
The shape is ergonomically designed for less stress on the back and a better view of the tablet and phone screen if you have them on the tray.
It’s 4-way adjustable to accommodate users with different heights. Despite the media tray, you can still use the handlebars in 4 cycling positions:
#1. Overhand front position
#2. Hook or middle position
#3. Extended position
#4. Time trailing position
Note: If you are planning to buy a spin bike that has V-shape frame, make sure that the handlebars are horizontally and vertically adjustable. Because they move up and down at a 45-degree angle.
On the V-shape frames, if you bring handlebars down, it gets too close to you because it doesn’t go straight down. The same rule applies when you move the handlebar up (it gets far from you) because it doesn’t go up straight. If it’s horizontally adjustable, you can simply adjust it to come closer or it gets far from you.
The seat is easy to replace and very comfortable for a spin bike. You can adjust the seat for your height by loosening the levelers located at the back of the seat. It’s also 4-way adjustable, which means you can fore/aft, up and down to help you find the most comfortable and natural position.
Keiser M3i also features plunging system seat post. The seat post has multiple holes where you can lock the plunger. You can also have the seat halfway between two holes and just tighten the knob. The good thing is that if the seat adjustment knob is not tight enough and the seat falls down, it will fall down into a hole instead of going all the way down.
Pedals and crank arms
Keiser M3i features the new revolutionary re-designed pedals. They are engineered to be better and more comfortable than any other pedal in the market. You can exercise with both normal athletic shoes and cycling shoes, the pedals have SPD and the cage. Read below to see what’s new on Keiser M3i pedals.
- Ramped barbs allow for secure foot placement without insertion difficulty
- The curvature of the pedal matches typical shoe design, eliminating pressure points on the rider’s foot
- Stronger bearings tested for static and dynamic loads experienced when the rider gets on, off, and rides the bike
- Easily accessible SPD tension adjustment
- Flexible and strong axle design that evenly distributes stress load. Forged, Chromoly steel axle, machined and heat-treated for maximum strength
- Re-angled SPD clip position provides greater clearance between the cage and the ground when using the SPD clips
- Due to the curve on the crank, you can wear normal athletic shoes and bulky athletic shoes without hitting the crank arms.
- People with wider hips feel more comfortable on the bike due to the angle.
M3i Warranty Terms
- 10 Years frame
- 3 Years cylinders, displays, processor boxes
- 2 Years compressor and dryer, cables, pulleys, and bearings
- 1 Year Chrome
- 90 Days paint, upholstery, seat belts, hand grips, and other rubber and plastic products.
Not covered under warranty
- Loss caused by accident, abuse, improper use or neglect
- Improper maintenance
- Improper assembly by the purchaser
- Failure to follow instructions as stated in any of the manuals provided with the Keiser M3.
Keiser M3i cycle requires only 2 AA batteries for the LCD and thanks to the back-lit sensor, the batteries last longer than most competitor bikes.
Keiser bikes Accessories
- Water bottle holder that fits both small and bigger bottles;
- One set of AA batteries for the LCD Display;
- Keiser indoor cycle comes with wireless Polar strap;
- Assembly and maintenance tools;
- M3i indoor cycle holiday bundle includes a media shelf;
- Floor protection indoor cycling mat;
The first spin bike featured with smart Bluetooth was Keiser M3i and it’s the only piece that M3 Plus was missing. You no longer have to manually write down your workout values. With Keiser M3i wireless connectivity you can create a profile on one of the exercise compatible apps and save your values. Keiser M3 Plus and M3 don’t have Bluetooth so you can’t save your workout data on the bike or online. To find out which apps the Keiser M3i is compatible with, see the Console paragraph.
You no longer have to leave your phone far when pedaling because Keiser M3i comes with a well-angled and good size media rack. Connect your device and enjoy the workout performance data on the big screen. The Keiser M3 and M3+ lack in media tray so you can’t have your phone or tablet on the cycle.
Keiser M3i door cycles come half-assembled, the major parts that you need to put together are the frame on the base, flywheel, pedals and crank arms, handlebar, and Console. It takes about 2 hours to do it properly. Make sure to follow the manual step by step and put it together correctly because if you fail to follow the instructions, the warranty doesn’t cover the future damages. With the Keiser M3 spin bike Holiday Bundle all the assembly and maintenance tools are included with the purchase.
|Torque wrench (Minimum 45 Nm / 35 ft-lb)||16mm, or 5/8” crowfoot|
|4” extension||5mm Allen Wrench|
|15mm open-end wrench||6mm Allen Wrench|
|16mm, or 5/8” open-end wrench||Paste or spray wax (used to clean after assembly)|
|#2 Phillips screwdriver||Clean cloth|
|15mm crowfoot||LPS #3 Heavy Duty Rust Inhibitor w/straw|
|2 - 10mm Wrenches|
Final Word on Keiser M3i Indoor Cycle Bundle
Keiser M3i weighs 85-lb and has two silicon transport wheels which make it easy to move around in the house or gym. The compact dimensions allow you to store the bike anywhere in the house without taking much space. Compared to its competitors, M3i weighs at least 30 to 50-lbs less. Simplicity, strength and easy portability are only some of the features that make Keiser M3i one of the best spin bikes in the market.
While Keiser M3i is not a budget indoor cycle, it’s a good value for the money. Beautifully designed for the most comfort, protection, and sexy look. The Bluetooth technology functionality that allows the user to track and download the workout values puts this cycle over the top of the list. Keiser M3i is a top-rated heavy-duty spin bike built with commercial quality. The quality and features added to this indoor cycle makes it very hard to find any cons.
M3i is a safe, Solid and Evidently maintenance free and also ultra-reliable machine. 300.000 M Series bikes sold, mostly to professional cyclists and major indoor cycling groups proves that Keiser M3i truly exceeds the expectation of a rider. Is there a better-made bike in the market? No, We strongly believe the Keiser M3i is currently the best spin bike in the entire market. If you are ready to take your indoor cycling to the next level and the budget is not your main concern, Keiser M3i is the best option. You might even get a free mat with the bike and it’s okay if you don’t because it’s only $20-30. This sexy solid indoor bike has everything you need for indoor cycling. Whisper quiet operation, 24 resistance level to challenge yourself beyond your limits, easy portability, innovative life lasting pedals and crank arms, stainless steel frame Bluetooth and more. However, there are two features missing, not only on Keiser m3i but on all the spin bikes. #1 User profile to save your workout data on the bike. #2 Preset-programs. Hopefully, Keiser will be the first cardiovascular spin bike manufacturer to address the lack of these features.