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Keiser M3i Indoor Bike
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Keiser M3i Indoor Bike
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Keiser M3i Indoor Bike
Description
x
More than 20 years ago, Keiser set out to create a bike that would exceed the demands of indoor group cycling.
- A bike that fits riders of all body shapes and sizes
- A bike that achieves a quiet — but true — road bike experience inside your gym or home
- The ONLY bike built in the United States to ensure the tightest quality control
...and we accomplished it all with
THE SIMPLEST OF
ENGINEERING DESIGNS.
SPECIFICATIONS
HEIGHT
45" / 1143 mm
WIDTH
26” / 660 mm
LENGTH
49” / 1245 mm
WEIGHT
85 lbs / 38.6 kg
Thanks to the lessons learned from our past generations of bikes and our constant innovations, the Keiser M3i isn’t just any indoor group cycling bike.
It’s the industry’s only indoor group cycling bike built around YOU. That’s...
YOU the rider
YOU the gym owner
YOU the service technician
HERE’S HOW WE DID IT.
MATCHES RIDERS
OF ALL SIZES
Many indoor group cycling bike manufacturers talk about providing a road-bike experience, but they failed to recognize what’s important about road bikes:
FRAMES VARY TO ACCOMMODATE RIDERS OF DIFFERENT SIZES.
Our solution was to engineer the industry’s FIRST V-shape frame for an indoor bike
Our V-shape frame design allows the M3i to mimic different road-bike frames by allowing the seat and handlebars to be simply raised in conjunction with one another to adjust for longer legs, torsos and arms.
FIRST TO ENGINEER A V-SHAPE FRAME
Other indoor group cycling bikes mistakenly place the rider’s sweat zone directly over the flywheel and other vulnerable mechanisms — an obvious engineering flaw that leads to corrosion, excessive cleaning and a shorter bike life.
Keiser was the FIRST to put the flywheel at the rear of a bike, allowing the M3i to be more reliable, easier to clean and better protected from sweat and corrosion.
Further protection of drive-train
The angled channel on the bike frame flows excess fluid away from the drive-train.
Less maintenance, longer bike life
With superior sweat protection, gym owners can save money through lower maintenance costs and a longer bike life.
FIRST TO ENGINEER A REAR-WHEEL DESIGN
It’s easy to “claim” accuracy, but we guarantee it. As the FIRST company to use magnetic resistance, Keiser revolutionized indoor cycling by delivering a quiet, reliable ride with immediate accurate data for EVERY M3i bike.
And unlike most competitors’ bikes, the M3i has been certified for accuracy
The nerve center of the M3i
The simple, elegant axle assembly is the core piece responsible for predicting and delivering accurate ride data, EVERY TIME — and EVERY COMPONENT is inspected to meet precise tolerances.
TRUE POWER READINGS
The M3i is the FIRST indoor bike to receive the globally recognized EN957-10 certification for accuracy and safety.
IMMEDIATE RIDE DATA
The FIRST indoor bike designed to predict the power generated at any speed in any gear — ensuring that both instructors and riders are provided with accurate ride data immediately.
GUARANTEED CONSISTENCY
Our relentless Quality Control procedures ensure that every M3i delivers the same immediate accurate ride data, bike after bike after bike. And every day an M3i production bike is randomly dyno-tested to ensure quality and accuracy
FIRST TO USE MAGNETIC RESISTANCE
The competition endorsed Keiser’s engineering by following our lead on using magnetic resistance — but they should have also 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 good road-bike experience. Using an outdated drive-train, designed for heavier flywheels, our competitors must use a perimeter-weighted flywheel to accomplish the same thing.
They even brag about their perimeter-weighted flywheel, cog-belt drives or crank-arm-to-flywheel ratios. But what they’re really telling you is...
THEY DESIGNED
THEIR BIKE WRONG.
QUIET, SMOOTH AND
MAINTENANCE-FREE
To design their indoor bikes right, our competitors will have to copy Keiser’s single Poly-V belt drive-train, because it’s the perfect balance between SIMPLICITY and PERFORMANCE
The Poly-V belt is the key to our drive-train design because it transmits very high loads over very small pulleys, achieving a good road-bike experience:
- Without a perimeter-weighted flywheel
- Without a more complicated drive-train
- Without the unnecessary noise and vibration of a cog belt
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.
FIRST DRIVE-TRAIN TO USE A POLY-V BELT FOR MAGNETIC RESISTANCE
Many indoor group cycling bike manufacturers talk about the distance between their bike’s two pedals, and boast about their narrow Q Factor. But their bikes were built around the narrow shoes and pelvises of elite cyclists, even though footwear of any width and people of all body shapes can be found in group cycling classes.
WHY WOULDN’T YOU DESIGN A BIKE TO FIT
EVERYONE?
CURVED CRANK ARMS
TO FIT WIDER HIPS AND BULKY SHOES?
Instead of using straight crank arms to achieve a narrow Q Factor, Keiser recognized the need for versatility. We added curvature to the M3i crank arms to maintain the proper distance for wider hips and any type of rider footwear, from narrow bike shoes to the bulkier gym shoes most commonly worn in group classes.
THE REVOLUTIONARY
KEISER M SERIES PEDAL
Keiser also set a new industry standard with our SPDcompatible M Series indoor group cycling bike pedal. Engineered beyond consumer standards for group classes, it’s more than a pedal — it’s a game changer, providing superior comfort, safety and durability.
THE ONLY BIKE TO ACCOMMODATE ANY BODY SHAPE AND FOOTWEAR
The M3i features a wide array of details, benefits and features, offering additional fit and comfort for riders, enhanced durability for gym owners, and simplified upkeep for maintenance technicians.
Simplified maintenance
M3i drive-train can be accessed by removing just eight Phillips head screws vs. over three times more on some competitors’ bikes.
Standard media tray
For holding cell phones and tablets
Easy access to shifter
Mounted directly to handlebars for ease of use and increased safety, especially when riding out of the saddle. Interval training is activated by simply pushing the shifter all the way down and back up, making it ideal for HIIT workouts.
Water bottle holder
Incorporated into frame design and fits both small and large sizes
Easy-to-adjust seat and handlebars
Quick, intuitive vertical and horizontal adjustments of seat and handlebars.
Robust knobs
Requiring less maintenance than a traditional cam-lock.
Wide array of hand positions
Continuous design of handlebars provides multiple hand positions for indoor cycling.
Stretch pad
Located on bike base to facilitate pre- and post-ride stretching.
Easy to transport
Fewer parts and a lighter flywheel for ease of transport.
THE ONLY BIKE DESIGNED ENTIRELY AROUND YOU
THE M3i FITS RIDERS
FROM 4'10" TO 7' UP TO 350 POUNDS
The v-shaped frame allows the seat and handlebars to be adjusted for adult riders of almost any size. Horizontal adjustments provide further ability to get a perfect fit for any rider
"MY SON IS 6'10’ AND A COLLEGE ATHLETE SO WE NEEDED A DURABLE BIKE THAT WOULD ADJUST TO FIT HIS HEIGHT. THIS BIKE WAS PERFECT. I LOVE THAT WE CAN EASILY ADJUST BOTH THE SEAT AND HANDLE BARS TO GIVE EVERYONE IN OUR FAMILY A PERFECT FIT. "
Nancy Kreiner | Okoboji, IA
THE M SERIES PEDAL
WORKOUT SHOES OR SPD CLEATS
Use your favorite standard workout shoes with the built-in toe clip straps on the M3i. Or, flip the pedal over to use your favorite cycling shoes with popular SPD cleats. To use another cleat style, simply replace the pedals with your choice of standard bike pedals (9/16" x 20 TPI) that accept your desired cleat.
THE M SERIES SADDLE
FIND YOUR COMFORT ZONE
The M3i comes with a saddle that provides a classic road bike experience for a wide variety of riders.
We designed our adjustable seat mount to fit all standard bike saddles. This gives you the option to add your choice of saddle for that truly perfect fit.
If all you want is a little more cushion, you can easily add a comfort seat cover to the saddle that comes with the M3i.
M3i Indoor Cycle - Keiser introduces intelligent cycling and the most technologically advanced indoor group cycle ever, the Keiser M3i featuring Bluetooth wireless display. The new Keiser Bluetooth wireless computer is certain to become popular with both riders and group exercise instructors.
The computer can transmit to a receiver for projection onto a screen and can also partner up with a wireless phone or tablet. At first glance the Keiser M3i catches the eye with a sexy new black color scheme that also features a red flywheel guard.
DESIGNED AROUND YOU
The Keiser M3i is the industry’s only indoor group cycling bike built entirely around YOU – that’s YOU the rider, YOU the gym owner and YOU the service technician. Game-changing features on the M3i include:
- V-shape frame to accommodate all riders
- Rear-wheel design for protection from sweat and corrosion
- Magnetic-resistance technology for greater repeatability and reduced wear
- Quiet, reliable and low-maintenance single-belt drive train
- Revolutionary re-designed Keiser Bike Pedal
- Bluetooth® wireless signal for open API for tablets and smartphones
ALL THE DATA YOU NEED ON A SINGLE SCREEN
We designed the M3/M3i Indoor Bike computer to be simple, with everything a rider needs to know on a single screen. This includes RPM (Revolutions Per Minute), Power and Energy (Watts and Kilcalories), Heart Rate, Elapsed Time, Gear and Trip Distance. Additionally, the back-lit display turns on when the room light drops below a set level and – unlike other indoor bikes – remains on.
KEISER M SERIES BIKE PEDAL
With our game-changing bike pedal, Keiser has again revolutionized indoor cycling down to the last detail. New pedal features include:
- Stronger bearings tested for static and dynamic loads
- Cage integrated into pedal design, not just added on
- Ramped barbs for secure and simple foot placement
- Curvature eliminating pressure points on the rider’s foot
SPECIFICATIONS
HEIGHT49" / 1245 mm
WIDTH
26" / 661 mm
LENGTH
51" / 1296 mm
WEIGHT
92 lbs / 42 kg
FEATURES
- V-shaped frame to accommodate riders of all body shapes and sizes
- Magnetic resistance for a smooth and quiet workout
- Infinite incremental resistance changes
- Rear-wheel design for protection from sweat and corrosion
- Transport wheels for ease of transport
- Revolutionary re-designed Keiser Bike Pedal
- Self-tensioning, zero maintenance Poly-V Belt Drive for low maintenance and reliability
- Intuitive, simple to read console displaying Cadence, Power, Kcals, Heart Rate, Ride Time, Odometer, Trip Distance, and Gear, all on one screen
- Keiser Integrated Technology using Bluetooth connectivity to record and track progress using our M Series apps
- EN957-10 certification for power accuracy, safety and environmental friendliness
- Robust adjustment knobs that require less maintenance than cam-locks
- Four-way adjustable seat
- Four-way adjustable handlebars
- Media tray, Stretch pads, Water bottle holder
SIMPLE. FAST.
ASSEMBLY MADE EASY
Your M3i Indoor Bike is designed to be easy to assemble. And it ships with easy-to-follow instructions. Watch our online assembly guide video to see how easy it truly is.
"VERY EASY TO ASSEMBLE"
Leila | Hollywood, FL
"I AM MOST CERTAINLY NOT HANDY, BUT IN NO TIME I WAS RIDING ON THE BIKE"
Steve | Raymond, ME
"LOVE LOVE LOVE! THE M3I WAS SO EASY TO PUT TOGETHER. THANK YOU."
Chris | Lincoln, NE
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Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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