Sunny Health & Fitness SF-RB921 Magnetic Recumbent Bike

State of the Art Magnetic Recumbent Bike with Pulse Sensor

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Description & Features+

The Sunny Health & Fitness Magnetic Recumbent Bike gives you a powerful cardio workout thanks to the fast and reliable resistance system with eight adjustable levels of manual resistance. The convenient Sunny Health & Fitness Bike has heart-rate sensors that allow for natural hand-positioning. The adjustable frame on the Sunny Magnetic Recumbent Bike allows you to control distance from your seat to the pedals. This Sunny Bike has oversized stabilizers and levelers that provide a solid workout platform. An easy-to-read LCD display lets you know your speed, distance traveled, hand pulse, time, and calories burned so you can easily set goals and track results.
• Fast and reliable magnetic resistance system
• Adjustable 8-level magnetic resistance system
• LCD displays: Speed, Distance, Pulse, Time, Calorie, Scan
• Heart rate sensors’ location allows for natural hand positioning
• Adjustable pedal straps
• Adjustable frame allows you to control distance from your seat to the pedals
• Oversized stabilizers and levelers for a solid workout


Adjustable handlebar
Number of resistance levels
Adjustable tension
Folding design
iFit technology
Fitness goal
Accessory tray/reading rack
Additional items included
Emergency brake
Manufacturer’s warranty length (months)
Targeted muscle area
Lower body
Bike type
Built-in fan
Assembly required
Assembly required
Adjustable seat
Water bottle holder
Resistance system type
Foot straps
Maximum user weight (kg)
Not Applicable
Adjustable resistance levels
Assembled Product Length
57 Inches
Assembled Product Width
24.5 Inches
Assembled Product Height
35.5 Inches
Assembled Product Weight
59 Pounds
Sunny Health & Fitness
Product Identifiers
Walmart Item #
Model #

Store Availability+

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From the Manufacturer +

Ratings & Reviews+

Sunny Health & Fitness SF-RB921 Magnetic Recumbent Bike is rated 4.613207547169812 out of 5 by 106.
Rated 5 out of 5 by from Terrific Bike!! This bike is comfortable, quiet, and easy to assemble. I did it by myself and had no problems. I bought the bike to try to strengthen a bad knee.
Date published: 2016-09-27
Rated 5 out of 5 by from stationary bike I needed a stationary bike as I have had knee replacement surgery. I needed to have a way to exercise the knees without worrying about weather conditions. It was simple enough for my husband to put together without any problems, so now I can ride everyday in the safety of my own home
Date published: 2016-09-26
Rated 5 out of 5 by from Easy Assembly! I just brought this home. Instructions to assemble were fantastic. And it is so quiet. Live in an apartment. This is important.
Date published: 2016-09-25
Rated 5 out of 5 by from Excellent for the money! Shipped all the way across the country for free. Very simple to assemble. Looks and works just fine. Only time will tell how durable it will be but so far it has handled my 230 lbs. easily.
Date published: 2016-09-22
Rated 5 out of 5 by from I love my bike Where should I begin in my rating? Well, it arrived five days earlier than specified. I was most apprehensive after unpacking the numerous parts since I am a moron when it comes to putting anything together that has more than two parts. Seriously, did you ever see a tricycle with the two wheels in the front? I did that with my son's first bike. That was the last time I was allowed to assemble anything in my house. Well, I examined all the alien pieces and the directions that could have been written in Chinese Mandarin, said a prayer to the god of construction and jumped in the fray. Did I say I love this bike? In less than a hour I had performed the unthinkable; a functioning, sleek-looking, sturdy recumbant bike with no parts left over. An engineering masterpiece. Now if I can accomplish this task without injuring myself anyone, and I mean anyone, can do the same. It was an absolute pleasure assembling this wonderful piece of machinary. But would it work? I didn't hesitate, on that sucker in a flash, and lo and behold, I was pedaling like a pro. And the bike didn't fall apart. I could read the metrics- speed, distance, calories burned, pulse, time- without my glasses. The firm back support was a blessing for my injured disc and the seat carressed my bony butt. I told you I love my bike. For the more adventuresome cyclist, you can hunch forward and use the handles on the side of the computer and pretend you are Lance Armstrong pedalling through the French countryside. And my bike has a sleek, dashing look. If it were an animal, it would be a jaguar. I have been riding my bike for only nine days but I have lost several pounds, my injured meniscus is improving, and I am more handsome. I love this device so much I may buy another just for the fun of building it!!! This purchase will be the best $145.00 you have ever spent or my name is not Wolverine. Buy it, you'll love it.The Alchemist
Date published: 2016-09-16
Rated 5 out of 5 by from A very good recumbent bike It was packaged extremely well and received well ahead of schedule. I took my time assembling it, making sure to look at the parts and read the instructions properly. Assembly was relatively easy and a couple of hours later it was ready to go. Very comfortable and quiet. The low profile is great for watching tv and even though it is quite long, it is very unobtrusive in my living room. I chose this model based on the positive reviews from customers and its affordability. I'm very pleased with my purchase.
Date published: 2016-09-12
  • 2016-10-17T07:12CST
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