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Sunny Health & Fitness SF-B901 Pro Indoor Cycling Bike Review

Last Updated on February 10, 2021 by Jeff

Sunny Spin BikeLet’s Get Started:

The very popular Sunny Health & Fitness SF-B901 Pro Indoor Cycling Bike is both an affordable and practical indoor bike for anyone, beginner or advanced indoor bike enthusiast, looking to get into shape or simply improve their level of fitness. The SF-B901 Pro is a no-frills, basic, durable indoor bike, perhaps overshadowed by fancier models of indoor cycles and Spinning bikes on the market boasting an array of computer features and little luxuries, but it is ideal for anyone who simply wants a reliable, sturdy bike to work out on in the comfort of their own home.

The Sunny SF-B901 indoor bike is a lightweight model but solid and durable, and its 40lb flywheel is perhaps its best feature as it enhances the efficiency of any workout. Its adjustable seat, handlebars and level of resistance allow it to be customized to suit any rider, and its stylish silver and red design means it certainly looks the part. The Sunny B901 comes in both chain drive and belt drive versions.

Click here to check the price of the Sunny Health & Fitness SF-B901 Indoor Cycling Bike on Amazon.

Sunny Health Fitness SF B901 Pro Indoor Cycling Bike

Technical Info:


  • Height: 46.5” (118.1 cm)
  • Width: 20″ (50.8 cm)
  • Length: 48.5″ (121.9 cm)
  • Item weight:  108 lbs. (48.98 kg)
  • Max user weight:  275 lbs. (124.7 kg)


Sunny Health Fitness indoor cycling bikeFeatures:

  • Resistance: Adjustable via a small knob
  • Handlebars: Horizontally adjustable, thickly-padded handlebars
  • Seat: Lightly padded, adjustable seat for maximum comfort
  • Computer features: None
  • Transport: Wheels provided for easy transportation around your home or office
  • 40lb (18.14 kg) flywheel with chain drive
  • Heavy duty crank
  • Steel frame
  • Chain or belt drive options


  • 1 year warranty on the frame
  • 90 day warranty on parts


Shipping and Assembly:Sunny Spin Bike

The Sunny SF-B901 Pro ships for free (and quickly) if you have Amazon Prime. The indoor bike is extremely easy to assemble; the fly wheel and bike’s main structure come ready assembled.  Customers only need attach the pedals, handlebar, seat and bottom support which should take around 20 minutes at most.

What We Love About the SF-B901 Pro Indoor Cycle:

Nice Price

With the SF-B901, you’re getting a very solid indoor bike for well under $300.  If you’re looking for something that simply gets the job done, there’s little point in paying through the nose when the SF-B901 Pro offers an effective workout and a durable, easy-to-assemble frame at such a low price. It may not have the fancy electronic features of many other bikes, but if you can live without these added extras in favor of saving a pretty penny, it may be well-worth the sacrifice.

Heavy Flywheelsunny health and fitness pro indoor bike

Secondly, we love the bike’s heavier-than-usual 40lb flywheel. The effectiveness of a workout is largely impacted by the weight of the flywheel, and a 40lb flywheel helps mimic a real feeling of road-bike momentum.

Easy Assembly and Storage

The Sunny SF-B901 comes mostly assembled and doesn’t take long to finish putting together. We’d estimate around 30-45 minutes to complete. As far as storage, the front wheels are excellent for moving the bike to a corner when not in use.

Other Considerations:


Sunny Indoor BikeNot a big surprise for the price but one thing to mention about the Sunny B901 Pro Indoor Cycle is its lack of computerized features. Although not by any means essential for a great workout, there are plenty of other indoor cycling bike models on the market that have these added luxuries that enable riders to fully customize their workout and track their progress, and this puts the SF-B901 at a bit of a disadvantage. That being said, if budget is your main concern, the workout the SF-B901 can provide is just the same as many of its rivals, and its lack of computer features may not prove such a hardship.

The Sunny SF-B901 Pro includes the lightly padded seat which, like most other indoor bikes it’s suffice to say, can prove somewhat uncomfortable, especially over the course of a long workout. That said this can be remedied easily enough with a gel cover.  Or give the bike a few days and see if you don’t get used to the ride.

Sunny Indoor Bike - B901Final Word on the Sunny Health & Fitness SF-B901 Pro:

Sunny Health and Fitness is a solid, California-based company that has been distributing a quality line of fitness equipment for over a decade. Customer support seems to be a priority and their warranties cover a good amount of usage time.

If you’re seeking value for money and a bike that’s simple but able to provide a great workout, you can’t wrong with the Sunny Health & Fitness SF-B901 Pro Indoor Cycling Bike. Comparable in quality to much more expensive bikes, this bike is the epitome of uncomplicated design, from its initial assembly to its jump-on-and-get-cycling workouts, making it ideal for anyone looking for a basic bike on a budget.

Click here to check the latest price on the Sunny Health and Fitness SF-B901 Indoor Cycling Bike on Amazon.


Check out our unboxing and assembly of the featuring the SF B901 indoor cycle:


  1. Stacie

    I like this bike a lot. It didn’t feel much different from the one at the gym. I ride almost everyday and had this bike for over 2 years. I just bought the newer model with the belt drive because it was very quiet and i have a baby at home. My husband got me iCyclerpm app for $3 to monitor my rpm(cadence) so no need to buy an expensive bike computer or expensive bike. I hope this helps you with your decision. Good luck.

  2. Maureen Schwartz

    Do the pedals have options whether you want to strap your feet in or use spin shoes that you step and twist to lock in?

    • Jeff


      The pedals do have shoe-holds but there is not an option for the clip-in style.

    • Julio C Cuadrado-Ortega

      You can easily install clip pedals!!


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