Synergy Magnetic Indoor Cycling Bike

Exercise Bike Synergy Magnetic Indoor Cycling Bike Model SF-B1879 Image 1
Exercise Bike Synergy Magnetic Indoor Cycling Bike Model SF-B1879 Image 2
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike
Exercise Bike Synergy Magnetic Indoor Cycling Bike Model SF-B1879 Image 6
Exercise Bike Synergy Magnetic Indoor Cycling Bike Model SF-B1879 Image 7
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike
Synergy Magnetic Indoor Cycling Bike

Synergy Magnetic Indoor Cycling Bike


39 reviews

Regular price

List Price:

Sale price $398.01 Save $200.99
156 in stock

Resistance icon

Adjustable Magnetic Resistance

Monitor icon

Performance Monitor

Pulse sensor icon

Pulse Sensors

seat icon

4-Way Adjustable Seat


Jumpstart your in-home fitness routine with the SF-B1879 Synergy Magnetic Indoor Cycling Bike by Sunny Health & Fitness. Indoor cycling can strengthen your cardiovascular health and engage your core, arms and lower body with proper and consistent exercise. Instantly boost your in-home cardio challenge with the magnetic resistance that makes your workout easy when you want it, hard when you need it.



Build new workouts when you effectively track your progress by using the battery-powered display. Easily check your speed, distance, time, RPM, pulse, and calories-burned at a glance while you cycle.


Pulse Grip Sensors

Monitor and maintain your target heart rate. Measuring your pulse rate is an important tool for exercising correctly and efficiently. The more steady and prolonged the elevated heart rate is during the workout, the more fat is burned. This important piece of health data will help you better understand your health and fitness status.


Device Holder

Improve your fitness experience by securely placing your phone or tablet in the tablet holder. Utilize this added accessory following along to fitness videos, or listening to your workout playlist. Whatever the use, you won’t be disappointed.


DumBBell HOlders

Use this cycling exercise bike with dumbbells (not included) to engage muscles in your upper body while you cycle. You can place them onto the built-in dumbbell holders when they are not in use (up to 20lb).


Magnetic Resistance

Revitalize your workout with integrated magnetic intensity which can amplify or reduce your cardiovascular challenge within seconds.


4-Way Adjustable Seat

Customize this bike around your individual height. Take advantage of the 4-way adjustable seat, 2-way adjustable handlebar and a wide leg inseam range of 27 inches to 37.5 inches.  


Caged Foot Pedals

Textured non-slip foot pedals will accommodate all sizes, while the remaining grip will ensure safe footing during the most demanding and vigorous workouts! Foot straps keep your feet saddled in so you can focus on the workout without feeling unbalanced.


Floor Levelers

No matter the surface of your home, you will have a stable, stationary workout. Adjust the height of each foot leveler to create a balanced riding experience, even if you have uneven floors! Exercise more intensely without worrying about rocking or tilting!


Transportation Wheels

The front-mounted transportation wheels make moving the bike easy and convenient around your house for easy storage. Just tilt the bike forward and roll.



30 lb flywheel

Magnetic resistance system

Belt drive mechanism

Pulse sensors

Performance monitor with table holder:scan, speed, distance, time, calories, odometer, rpm, pulse



Personalized fit

4-way adjustable seat

2-way adjustable handlebar

Transportation wheels

Ergonomic grips

Bottle holder

Dumbbell holder


275 lb. weight capacity

Adjustable inseam: min 27" / max 37.5"

Handlebar to seat distance: min 16" / 20.5"

Caged foot pedals

200mm Q-Factor

Floor levelers


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

(2) AAA batteries included

Product weight: 88.2 lb

Product dimensions: 49L X 22W X 50.5H

Ship weight: 102.5 lb

Ship dimensions: 41.5L X 10W X 34.6H

Warning iconCancer and Reproductive Harm -

  Warning iconCancer and Reproductive Harm -


User manuals have recommended maintenance for your equipment. Manuals can be downloaded from our website on each product page, please search for your product to visit the product page.

Please search the product by name or model in our website. Manuals can be downloaded from the product page.

Warranty information is available on here.

Workout videos can be viewed here.

Contact our customer service team here for parts and technical assistance.

Customer Reviews

Customer Reviews
4.8 Based on 39 Reviews
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Roman R.
United States United States
Synergy Mag metric Indoor Bike

My Synergy Magnetic Indoor Bike is the Top Notch exercise equipment. The quality of the product is outstanding, the design & engineering features are 2nd to none. My workouts are top of the line with the Sunergy Bike. My only regret, I should have ordered my bike earlier. Keep up the outstanding design. Congratulations to all departments on this brand.

United States United States
Love it!!

I was going back and forth between purchasing an affordable Sunny Health and Fitness bike with Leather resistance pads at $249 or a Schwinn IC3 bike at $599. Then I saw the updated IC4 bike that had magnetic resistance for $799! I soooo wanted it! Everything I read about the felt or leather resistance pads mentioned having to oil or lubricate it, problems with loud noises, and a lot of upkeep. Some bikes included the rpm monitors and some didn’t. But I couldn’t see spending over $500 for a bike! I was delighted after days and days of researching and shopping to see this bike. It only had a couple of reviews and I couldn’t really find anything written about it. But it seemed too good to be true. Magnetic resistance. Monitor for speed, RPM, distance, etc...adjustable seat and handlebars. Holders for hand weights. For $370! Yes, please!!! Put it together in about 10 minutes. I’ve done 8 hour long spin sessions so far and I love it!!! I added a $10 gel cushion cover to the seat. The seat wasn’t terrible but I like the gel cushion better. Not one single noise or squeak! Resistance is strong. I have been using free YouTube spin classes so far and follow along with the rpms and resistance instructions. So happy with my purchase!

Kathryn W.
United States United States
Great bike

I’ve only had it a week and so far I love it! I use to go to a gym and spin and decided to get one and use at home instead. Read all the reviews on many and this one had a lot of good ones. So far they have all been true. This is a very quiet bike and seems to have everything I need. I will have to say I did order a gel seat cushion for extra padding. The seat is a typical and I had to get one for the gym one too. You can’t go wrong with this for the price and it’s a good quality bike too!

Angela D.
United States United States
Bike Purchase

I'm very happy with the purchase. It is sturdy and provides a good workout. Good resistance. The fly wheel weight is good. I would recommend the purchase.

Sandi P.
Fell in love

Fell in love with my sister-in-law's Sunny bike so i had to get my hands on this model too. I love how quiet it is and it's fully adjustable to fit anyone.