Wendy K
Mississauga, ON
Female
50 - 69 years old
Would recommend to a friend
Love myM31 Keiser bike

Lisa
Pleasanton, CALIFORNIA
Female
50 - 69 years old
Would recommend to a friend
Love this bike!

Fromnewjersey
Female
35 - 49 years old
Would recommend to a friend
love my Keiser

Aimee
Jonesboro, AR
Female
50 - 69 years old
Would recommend to a friend
Fantastic spin bike

Ramin B
Pleasanton, CA
Male
50 - 69 years old
Would recommend to a friend
When the constant improvement is the goal!

Russ
Clovis, CA
Male
50 - 69 years old
Would recommend to a friend
Rock Solid

Alessandro
Vancouver, WA
Male
50 - 69 years old
I like the M3i bike, but the handlebars are uncomfortable for long-rides

Mike D
Castro Valley, CA
Male
70+ years old
Would recommend to a friend
Great of folks with A-Fib

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...
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.