Product Reviews

M3i Indoor Bike

Average rating

4.8 5 1698

1698 reviews

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Mississauga, ON

Female

50 - 69 years old

Would recommend to a friend

Love myM31 Keiser bike

VERIFIED PURCHASE
Great bike

Pleasanton, CALIFORNIA

Female

50 - 69 years old

Would recommend to a friend

Love this bike!

VERIFIED PURCHASE
I am so happy I purchased the Keiser and not one of the other marketed bikes available. The Keiser M3i is sooooo quiet. It has so many cool features and it was easy to put together. The videos, manual and online manual were extremely helpful. I started looking at this bike when I saw how thoughtfully it was made on "How Its Made" TV show. I always do my best to purchase items Made in the USA and am so glad I waited until I found this bike. I have used it every day since it arrived.

Female

35 - 49 years old

Would recommend to a friend

love my Keiser

VERIFIED PURCHASE
We bought a Keiser because of the quality and not wanting to commit to the $40/mos Peloton subscription. Any cycling app can be used with the Keiser m3i. We bought the blue tooth converter to save the ride stats for our own tracking. The bike rides smooth and is quiet.

Jonesboro, AR

Female

50 - 69 years old

Would recommend to a friend

Fantastic spin bike

VERIFIED PURCHASE
Love this purchase, made in the USA, fantastic bike!

Pleasanton, CA

Male

50 - 69 years old

Would recommend to a friend

When the constant improvement is the goal!

VERIFIED PURCHASE
There is a need for a more comfortable seat :)

Keiser responded:

Hi Ramin Bet-Yonan,

Just a quick note that you can make your seat more comfortable in a few ways:

  • Add a "narrow" gel seat cover from Keiser or another manufacturer.
  • Invest in a pair of padded cycling shorts, available in many sizes and styles.
  • Replace the seat entirely!

All the best,

Mike Douglass
Keiser Corporation
1-800-888-7009


Clovis, CA

Male

50 - 69 years old

Would recommend to a friend

Rock Solid

VERIFIED PURCHASE
This is my second M3i, having purchased one five or six years ago, and this one is for my wife. I initially made the decision to go with the Keiser by going to several of the local gyms and trying out the bikes they had. The Keiser blew the competition away. Most were wobbly, rattling, and malfunctioning. The one Keiser I found showed signs of use but was in perfect riding condition in a commercial setting where abuse is always a given. I was attracted by the more exotic electronics on some of the other bikes but, more often than not, they were broken and out of order, even the ones at my physical therapist. That fact sent me to look seriously at the M3i. Ultimately, the smoothness, the adjustability, the silence, the comfort, the simplicity, the durability, and the good looks of the...
This is my second M3i, having purchased one five or six years ago, and this one is for my wife. I initially made the decision to go with the Keiser by going to several of the local gyms and trying out the bikes they had. The Keiser blew the competition away. Most were wobbly, rattling, and malfunctioning. The one Keiser I found showed signs of use but was in perfect riding condition in a commercial setting where abuse is always a given. I was attracted by the more exotic electronics on some of the other bikes but, more often than not, they were broken and out of order, even the ones at my physical therapist. That fact sent me to look seriously at the M3i. Ultimately, the smoothness, the adjustability, the silence, the comfort, the simplicity, the durability, and the good looks of the M3i made the choice an easy one.

Vancouver, WA

Male

50 - 69 years old

I like the M3i bike, but the handlebars are uncomfortable for long-rides

I love the bike, it's silent, easy to operate and Bluetooth easily connects to Trainer Road app which is what I use daily. My only gripe is the handlebars. They are uncomfortable for anything longer than 30 min ride. My wife and I both use the bike and both agree that replicating road-bike ride with these handlebars is useless and uncomfortable. I wish Keiser offered an option/upgrade for true road bike handlebars for those that want to use the M3i for indoor winter training without having to purchase more expensive bike trainers. I may end up selling the M3i and replace it with something more suited for road bike training.

Keiser responded:

Hi Alessandro,

Interesting! I've not heard of this before, can you shoot me an email or post a response here with more information on the difficulty? The M3i handlebars are super adjustable and that always contributes to a comfortable ride, I'm curious as to which grip styles you are having issue with.

Thank you,

Mike Douglass
Keiser Corporation
1-800-888-7009


Castro Valley, CA

Male

70+ years old

Would recommend to a friend

Great of folks with A-Fib

VERIFIED PURCHASE
This review is aimed at people like me, who have atrial fibrillation, and are wondering whether or not this stationary bicycle is suitable for them. In two words – absolutely yes. I am a seventy-three year old male with a BMI north of thirty. I cannot feel the arrhythmia directly but rather the side effects – primarily light headedness and lack of energy.
I’ve owned a Keiser M3i for fourteen months. Being a Type A person, I decided to push myself with high intensity interval training. I gradually increased the gearing so that my heart rate was in the low to mid 130s at the end of the session. I use shoe clips so my feet are well anchored to the pedals. One day I experienced significant light headedness and decided that fainting on the bike was not the wisest of plans, so I...
This review is aimed at people like me, who have atrial fibrillation, and are wondering whether or not this stationary bicycle is suitable for them. In two words – absolutely yes. I am a seventy-three year old male with a BMI north of thirty. I cannot feel the arrhythmia directly but rather the side effects – primarily light headedness and lack of energy.
I’ve owned a Keiser M3i for fourteen months. Being a Type A person, I decided to push myself with high intensity interval training. I gradually increased the gearing so that my heart rate was in the low to mid 130s at the end of the session. I use shoe clips so my feet are well anchored to the pedals. One day I experienced significant light headedness and decided that fainting on the bike was not the wisest of plans, so I modified my routine.
Instead of shooting for a maximum heart rate in the 130s I lowered the gearing so that I peaked out at 110, or below. That was several months ago and I haven’t had any A-Fib symptoms on the bike since then.
As part of the process of lowering my peak heart rate on the bike I discovered something that was counter-intuitive. The bike aggregates your session and presents averages when you are done. My initial sessions resulted in an average heart rate of about 105, a “Trip” of 4.6 and distance of between 10 and 11 miles. Using the same timing, but reducing the gear on the high intensity portions has resulted in average heart rates in the mid to high 80s, a “Trip” of 4.5 and distance of between 10 and 11 miles. In other words, assuming the “Trip” figure accurately represents the energy expended in the workout, I’m now getting virtually the same workout with far less stress on my heart.
For whatever it may be worth, I use an interval timer app and stream music to my earbuds during the ride. Life is good.