Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike

Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike
Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike

Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike


14 reviews

Regular price

List Price:

Sale price $379.00 Save $120.00

Performance Monitor

Magnetic Resistance

Device Holder

Pulse Sensors


The Endurance Magnetic Indoor Exercise Cycle Bike model SF-B1877 is an excellent belt driven system model for low impact fitness. The performance monitor allows you to track your Time, Speed, Distance, Calorie, Odometer, RPM & Pulse. Excellent for beginners and enthusiast in fitness or anyone needing recovery training to start an in-home calorie burning workout routine. Adjustable magnetic resistance allows you to change up your exercise cycling routine making every home workout session feel different. Designed to last, feel confident riding this durable stationary bike with a 265 LB maximum user weight. The Endurance Magnetic Exercise Bike model SF-B1877 will push your stamina, performance and fitness to the next level!



Time, Speed, Distance, Calorie, Odometer, RPM & Pulse.



Adjustable magnetic resistance provides smooth contactless resistance and is virtually maintenance free



178 mm: Lower Q-factors provide better biomechanical and ergonomic efficiency. This allows the rider to pedal faster and harder more effectively.



Follow along to your favorite Sunny Health & Fitness training videos on your tablet or mobile device.



Stay hydrated to be ready to exercise for extended training sessions



265 LB max user weight with sturdy frame built to last.



4-Way adjustable seat to help you stay in proper form.



2-Way adjustable handlebars for fit and comfort.


Pulse Sensors

Monitor/maintain goal heartrate. The steadier & more prolonged elevated heartrate is during workout, more fat is burned.



Tilt and roll away for easy storage with convenient transport wheels allowing easy movement of equipment.


Floor Stabilizers

Stabilizers help create balance, even on uneven floors! Exercise more intensely without worrying about rocking/tilting.



Monitor: time, speed, calorie, odometer, RPM, pulse

29 lb Flywheel

Micro-adjustable resistance

Multi-grip handlebars

Caged foot pedals

Device holder

Pulse sensors

Floor stabilizer


Cushioned seat

Easy 4-way adjustable seat

Seat dimensions: 10.5L x 9.5W x 3H in

2-way adjustable handlebars

Non-slip handlebars

Bottle Holder

Transportation wheels


265 lb weight capacity

Adjustable magnetic resistance 

Smooth and reliable belt drive system

Adjustable inseam height: Min 27.5 in / Max 36.5 in

Handlebar to seat: Min 15.5 in / Max 20.5 in

Q-factor: 177.8 mm

Emergency stop brake


Warranty: 3 year structural frame 180 days other parts and components

Product weight: 95 lb

Product dimensions: 48.8L x 20.1W x 48H in

Ship weight: 82.9 lb

Ship dimensions: 40.7L x 9.4W x 34.6H in

Warning iconCancer and Reproductive Harm - www.P65Warnings.ca.gov

  Warning iconCancer and Reproductive Harm - www.P65Warnings.ca.gov


The Product Manual may be downloaded below. If you have any questions, please feel free to contact our customer care team.

This bike comes equipped with caged foot pedals that provide stability and safety.

Yes! We have a great library of workouts that you can perform on your indoor cycle, which can be found on the Workouts section of our website as well as on our YouTube channel.

Magnetic resistance uses magnets to add resistance which allows for smooth and quiet riding experience. Since it’s a magnetic brake and its pad doesn’t touch the flywheel, you won’t have to worry about wear and tear, replacement, or any friction-generated noise.

The durable belt drive provides smoother and silent pedaling and requires less maintenance.

The performance monitor helps track time, speed, calories, odometer, RPM, and pulse.

Feel confident sitting on our durable design with a 265LB max user weight limit.

Yes! The handlebars are 2-way adjustable (up and down) and the seat is 4-way adjustable (up, down, forward, backwards) for a fully customizable fit.

The best way to see if this bike would be suitable for you is to measure your inseam. This bike can accommodate inseams between 27.5" and 36.5".

There is a 3-year warranty on the structural frame and 180-day warranty on other parts and components.

Customer Reviews

Customer Reviews
4.8 Based on 14 Reviews
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Adriana J.
United States United States
Good but handlebar is not ergonomic

The handlebars are very very uncomfortable. There’s virtually no way to do a overhand position comfortably and my hands/forearms always hurt after use. Otherwise, the bike is great. If you have carpel tunnel or ever want to do a overhand position buy another bike.

Nicole F.
United States United States
Awesome Bike!

Was delivered right to my door. Assembly was very easy and straightforward. My mom helped me put it together and I was ridding it in a half hour! Very quiet, built well and really glad I did alot of research! Very happy! Nicole Fullman

Sunny Health and Fitness Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike Review
Robin E.
United States United States
Excellent cycle

We just love our new cycle. I used many at the gym (can’t go now due to Covid) and this is just as good. An excellent workout and fully adjust to our different heights. So glad we made this purchase.

United States United States
Dont buy bikes anywhere else. Seriously, dont do it.

Great quality bike, easy set up , great rides, smooth pedals, magnetic resistance cannot be compared. I can understand if you are a professional cyclist and need more from other bikes. Im not in great shape and me and my wife aren't cyclists, but this is an amazing bike to start. Mind you I can see myself in shape and still get alot out of the bike. Overall great bike and the price?! No one is even close. Thank you so Much Sunny!!

Sunny Health and Fitness Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike ReviewSunny Health and Fitness Endurance Belt Drive Magnetic Indoor Exercise Cycle Bike Review
Miguel H.
United States United States
We LOVE this bike!!!

This was the best purchase we have made as husband and wife. Couple this with some SPD pedals, a clip in cycling shoe, and a GREAT indoor cycling program on your big *** TV and you will get a whole lot of weight loss! Would buy it again in a heartbeat. Be the best version of yourself and shed those quarantine fats away.

Lance B.
United States United States
Good bike, great for the price

Bike seems very sturdy. No issues after a few rides as a 200 pound person. Seat and handlebars are comfortable and fairly adjustable, but would be nice if the seat could go back a little further. About 2 hours to assemble as one person. Directions could probably be improved by breaking them into more steps. Monitor is fairly simple, but easy to use.