The Keiser M3 Plus Indoor Cycle is a professional grade spin/exercise bike that has a road bike feel and a slew of great functions and features.
With its minimalist design, sturdy top-notch construction and rock-solid base, it looks great, and it performs exceptionally well.
Almost identical in design and function to the popular Keiser M3, the Keiser M3 Plus comes with the added advantage of handlebars that adjust backward and forwards, as well as to a higher or lower position. This makes it comfortable for people of any height, including very short and very tall individuals and those with a short arm reach.
Boasting 24 levels of magnetic resistance, the bike is suitable for everyone from the new exerciser to the highly experienced. If you want to recreate a Downhill Sprint Course, a Hill Climb, or experience various other types of virtual terrain, you will be able to with this bike.
Keep reading to find out more about the specs, key features, pros, and cons of the Keiser M3 Plus Indoor Cycle, as well as purchaser feedback.
*The Keiser M3i is the upgraded version of this model. It comes with all of the great features of the Keiser M3 Plus. It also has Bluetooth, which enables you to connect to your smartphone or iPod to track your workouts.
Table of Contents
Keiser M3 Plus Indoor Cycle Specs
Dimensions – The Keiser M3 Indoor Cycle measures 45” (H) x 26” (W) x 49” (L)
Weight – It weighs 85 lbs
User weight limit – This model has an upper user weight limit of 300 pounds
User height – It suits people from 4′ 7″ to 7′ tall
Color options – Color choices include gray, or black with a red flywheel guard
Batteries – To operate the console you will need 2 x D batteries
Keiser M3 Plus Indoor Cycle Key Features
- Road-bike-feel
The Keiser M3 Plus simulates the feel of riding a road bike, including going uphill and changing gears.
- Variable resistance
With 24 levels of digital resistance, you will be able to grow your fitness. You will also be able to use the bike for interval training.
- 3 LCD monitors
The bike has three battery-operated ambient-sensitive backlit consoles, so tracking and accessing your workout stats couldn’t be easier. Stats displayed include RPM (cadence), Power (alternates between watts/kcals), Heart Rate, and Elapsed Time. There’s also an Odometer.
- Wireless heart rate monitor
By connecting a Polar receiver, you will be able to monitor your pulse rate
- 4-way adjustable seat
The bike’s foam-padded saddle seat is moderately firm and very wide. It can be adjusted vertically and horizontally. It is also interchangeable with the seat on most standard street bikes.
- Fore and aft handlebars
The Keiser M3 Indoor Cycling Bike has oval-shaped handlebars. Foam padded for comfort, they enable almost limitless grip positions, catering to cyclists of just about any height.
- SPD combo pedals
The Keiser M3 Plus Indoor Cycle features Shimano Combo Clipless Pedals.
- Multi-media shelf
A handy shelf can be used to hold a smartphone, tablet, or another electronic device you want at hand during workouts. 
- Water bottle holder
A water bottle holder provides convenient storage for water or a sports drink.
- Transport wheels
Transport wheels enable easy relocation of the bike, as required.
- Warranty
This model comes with a 10-year warranty for its frame, 3 years cover for parts, brakes, and electronic components and 6 months for wearable parts, including the “T” handles, pedal strap, pedal cage, and seat upholstery.
Close-up of the Keiser M3 Plus Indoor Cycle
Keiser M3 Plus Indoor Cycle Pros
- Compact
With its small footprint, the Keiser M3 Plus will suit people with limited room for exercise equipment.
- Solid
This model is extremely robust and stable to use. If your floor is uneven, utilize the two adjustable feet built into the back to level the bike and prevent it from rocking during workouts.
- Whisper-quiet
Eddy current resistance with magnet-based technology provides exceptionally quiet workouts, regardless of how hard or how fast you pedal.
- Resistance options
The bike’s wide range of resistance options caters for everyone from the new exerciser to the very experienced.
- Pedals
Coming with a combo Cage/SPD, all sports trainers are compatible with this model. You can also switch to SPD or SPD-SL pedals.
- Smooth braking system
Resistance level changes are seamless, with none of the shuddering that often occurs when using the direct-contact braking system on many indoor exercise bikes.
- Easy assembly
The Keiser M3 Plus Indoor Cycle comes partially assembled. Finishing the job is quick and easy, taking most people between 30 and 60 minutes.
Keiser M3 Plus Indoor Cycle Cons
- Cost
The Keiser M3 Plus isn’t cheap, but it’s worth paying that bit extra for. Given its quality, features, and durability, it is excellent 
value.
- Heart rate monitor
If you want to monitor your heart rate, you will need to purchase a wireless chest strap. One that teams well with this model is the Polar H7 Bluetooth Heart Rate Sensor & Fitness Tracker.
- Required extras
The tools needed to assemble the bike are not included. If you have an Allen wrench and an adjustable wrench, you should be good to go.
You will need a paste or spray wax and a cleaning cloth to clean the bike after you’ve assembled it. In addition to these, you will need a can of LPS #3 Heavy-Duty Rust Inhibitor with straw.
- Warranty
The warranty for this model does not extend to labor.
Keiser M3 Plus Purchaser Feedback
The Keiser M3 Indoor Cycle has overwhelmingly positive purchaser feedback. Some reviewers who have owned a number of spin bikes said it is by far the best they have used.
People from 4′ 10″ to 6′ 5″ have praised the bike’s comfort and ultra-smooth performance. A few purchasers said they’ve used the bike while rehabilitating from injury. Some, who suffer joint pain, stated that they are very impressed with its adjustability, which has enabled them to exercise again.
Most reviewers have said that assembling the bike was easy and that it took under an hour.
Keiser M3 Plus Indoor Cycle Summary
The Keiser M3 Plus is the top-of-the-range spin bike from Keiser, a brand renowned for high-quality exercise equipment. It should appeal to 
anyone who is shopping for a high-end spin bike.
The bike’s uniquely shaped handlebars offer users multiple-grip position options. This ensures a comfortable ride, whatever your height.
A generous user weight capacity caters to most people. Equipped with a broad range of tension levels, it suits all fitness levels. Built to be virtually maintenance-free, it should provide you with many years of trouble-free workouts.
The only real drawback of this particular model is its higher than average price. If, however, it’s within your budget, it will be a purchase I think you will be very happy you made.
If you’re of average height so don’t need handlebars that adjust backward, and forwards and you want to save a bit of money, check out the Keiser M3, which comes in Raven Black and Platinum Gray. The Keiser M3 doesn’t have Bluetooth, but it has all of the other great features of the M3 Plus.
If you’re on a tight budget and you’re happy with fewer resistance levels, you might like the Stamina 4825 Magnetic Recumbent Bike (Click the previous link to read a review). It’s a great bike with some excellent features, and it has the same generous user weight capacity as the Keiser M3 Plus.
