Sunny Health & Fitness Belt Drive Spin Bike [2019 Review]

Sunny Spin Bike

Sunny Belt Drive Spin BikeThis Sunny Spin Bike may be the only Indoor Bike online, priced under $400 with the super quiet, much sought after, Belt Drive System.

On the face of it… It is a bargain.

But is it a one-trick pony?

What any bike rider will appreciate, and what I personally love is the heavy flywheel.

High inertia from heavy flywheels will give you a smooth realistic ride very close to your road or mountain bike.

Add to this the almost silent Belt Drive and Excellent Price…

Great Price!

Sunny Spin Bikes are often on special, making cheap bikes into a bargain spin bike…

At its current sale price around $329.99 down from $499!

Good Luck – finding a better deal?

Check Today’s Price On Amazon

Smooth & Quiet

A  smooth, quiet indoor cycling bike that makes home-based exercise convenient and effective.

What do I mean by smooth?

The heavy-duty 49 lb. Flywheel and Belt Drive together ensure a very smooth action when pedaling.

These are cool features, normally reserved for top of the line bikes, selling at premium prices…

The heavy flywheel, crank and steel frame ensure it is a sturdy, stable, bike for everyone, including larger riders.

Fully adjustable seat and up and down adjustment for the handlebars.

Easily adjustable resistance, [not my prefered option.] plus, top press down emergency brake, is a useful safety measure, especially if you often ride the bike around small children.

Main Features

  • Equipped with a metal bottle holder.
  • Transportation wheels make it easy to move.
  • Maximum user weight: 275 LBS.
  • Frame warranty is for one year.
  • 49 lb. flywheel.
  • Belt drive.
  • Fully adjustable seat – up/down – forward/backward.
  • Adjustable Handlebars – up/down.

One Small Issue

It’s a bit picky, but I don’t like the resistance tension knob, as it utilizes – continuously turning adjustment.

Turn right to tighten the tension (and make it harder to pedal), turn left to ease off and make it easier.

It’s the way all cheap spinning bikes work…

With this method, however, there’s no way to “Index” or “bookmark” a location so you know you returned to the same point each time you ride.

In other words, you turn the dial to make it hard to pedal one day but there’s no way to know if you have turned the dial to the same spot when you want to repeat the same workout the next day.

As I said, that’s awfully picky…

But it is the one checkmark, I would have liked to put in the plus column for this spinning bike.

Despite this, when you take into account the small amount of money, you would pay for this bike! – it is an amazing bike to ride.

Compared to some of the cheaper Sunny Spin Bikes I have test ridden in the past – it’s light-years in front!

I don’t like to use the term often, but this a “Bargain Buy” at this low price – with the full feature list that is standard on this bike!


  • Belt Drive – very quiet
  • Heavy flywheel – 49 lbs
  • Great  price – under $500
  • Emergency brake
  • Easy to assemble
  • Fully adjustable seat -up/down and forward/aft

Not So Great:

  • No fore or aft adjustment for the handle bars
  • Seat is uncomfortable for larger people
  • Pedals are not clipless – straps only
  • Warranty 1 year for the frame. 3 Months for parts

I would choose the  Sunny Health & Fitness Belt Drive Indoor Cycling Bike over all others mostly because of it’s reputation and solid reviews from past buyers on Amazon.

The belt drive is a welcome bonus.

Heavy Flywheel [49 lbs]

Also it has one of the heaviest flywheels in this price range.

For me, the heavy well-balanced flywheel is a must-have if you going to train often and long hours on your bike.

A heavy flywheel produces a smooth pedaling, especially if you are using cycling shoes, being clipped into spd pedals combined with heavy flywheel will help you keep correct form when spinning, this, in turn, reduces the chance of ankle or knee strain.

I find they are very similar to riding my mountain bike which is great as I mainly use the spin bike to maintaining my fitness between mountain bike missions.

Sunny Spin Bike With Belt Drive

This Sunny Spin bike uses a belt to drive the wheel instead of a chain, this is a major improvement.

I have always wanted a belt-driven spin bike.

I can’t believe I found one so cheap.

They are much quieter, need a lot less maintenance.

No more cleaning and oiling that noisy dirty chain.

Out Of The Box

I’m always happy when things actually fit together and work straight out of the box.

It’s great to save money on stationary bikes when buying online, but they need to be simple to bolt together and get riding.

I don’t have the patience for confusing complex instructions or dealing with a poor design…

The Sunny bikes being simple in design are easy to put together.

Replace The Seat/Pedals

If you are planning to spend a lot of time on this spin bike?

I would replace the cheap seat and pedals that it comes as standard.

Instead, install SPD clipless pedals with a Specialized or similar saddle – You will notice the difference!

Clipless pedals and SPD cleats fitted to your new mountain bike shoes will clip straight in to your spin bike.

I guarantee, a couple of small changes like these…

You will be in spinning heaven!

Saddle/Handlebars Adjustment

The saddle adjustment works well enough, as it went up and down and you can move the saddle fore and aft on its rails to get the right fit for your height and reach.

So this bike is easy to adjust for the average rider.

The handlebars only have an up and down adjustment which limits the bikes adjustment a little bit, it will only affect very short or very tall people (no adjustment fore or aft).

I’m 5-9″ and I’m very pleased with my fit on the bike it is very comfortable and I’ve had a few long sessions on it.


Sunny Belt Drive Spin BikeSunny Health & Fitness produce and sell some very nice spin bikes along with a couple of “cheap spinning bikes” in most cases you get what you pay for.

But with the Sunny Health & Fitness Belt Drive Indoor Cycling Bike you get much more…

To get Belt Drive, Heavy Flywheel, Solid build like this would normally cost twice as much.

So I have no hesitation in recommending this spin bike to anyone looking for a well priced reliable spinning bike for your home gym.

About the Author Ian

Ian is the Chief Editor here at OnlineBikesShop, a reformed Cycle Traveler... now a dedicated stay-at-home dad of a very active 5 yr old, a keen mountain biker with a passion for all types of bikes, the outdoors, and keeping fit...

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