Here's the Gist
I am an indoor cycling reviewer who decided to test out the budget-friendly Sunny SF-B1709 spinning bike firsthand. Here is my breakdown of how this mid-range indoor bike actually performs regarding build quality, assembly, and ride feel.
- At a current offer price of $400 with free shipping, this bike delivers exceptional value without feeling cheap or flimsy.
- The magnetic resistance lever is silky smooth, and the frame remains completely solid and stable even during hard sprints.
- Assembly took me roughly 30 minutes, includes all necessary tools, and is straightforward with very clear instructions.
- While adjustability is great and includes handlebar drops, the saddle itself is pretty uncomfortable and may need swapping.
- There is no smart app connectivity and the display is basic, though you can still independently follow apps like Peloton or iFit.
- Sunny backs the bike with financing options, a three-year structural warranty, and 180 days of coverage on parts and components.
Indoor cycling is growing in popularity every year, and we’re seeing more and more bikes hit the market all the time. One company we hear so much about is Sunny Health and Fitness. They are one of the biggest manufacturers of spinning bikes, and they get rave reviews left, right, and center.
We wanted to learn more, so we invested in one of their mid-range bikes, the Sunny SF-B1709. In this article, we wanted to tell you all about it and why you might consider it your bike of choice when it comes to indoor training. We will be discussing the following:
- Why The Sunny SF-B1709?
- Pros, Cons, and Verdict
- How We Rated The Bike
- Detailed Review Of The SF-B1709
- Is The Sunny SF-B1709 For You?

Why The Sunny SF-B1709?
The first thing to speak about is why the SF-B1709? Well, we had important criteria when we were looking for a spinning bike. We didn’t want to go down the route of what everyone else was doing and just look for the most expensive. We wanted a budget bike, which looked great, and was accessible to anyone.
Pros, Cons, and Verdict
Not only does it look great, but it offers such a lovely ride, and the experience it gives is very personal and does feel like a spin bike, not a cheap exercise bike.
Let’s get straight into it with the Pros and Cons and give you a verdict on what we thought. Here’s a quick rundown:
Pros
- Price Is Incredible
- It’s Easy To Build
- The Resistance Is Silky Smooth
- It’s a Very Comfortable Bike
- It Looks Fantastic
- It’s A Very Solid Bike
Cons
- Not Smart Connectivity And Basic Display
- Saddle Isn’t Very Comfortable
Our Verdict
The Sunny SF-B1709 is a great bike. It’s just as amazing as it looks. It’s excellent quality and is just such great value for the money you’re spending. It’s a pleasure to ride, and even in the sprints, it feels solid. Apart from not having any connectivity, we really can’t fault it. We love it!
My Video Review!
How We Rated The Bike
- Riding Experience & Performance
- Construction Quality & Durability
- Assembly Process
- Comfort & Adjustability
- Connectivity
- Support, Financing Options & Warranty
- Value for Money
Detailed Review Of The SF-B1709

Now for the fun bit, let’s break it down and tell you all about the Sunny SF-B1709 in detail. Here’s what you need to know.
Riding Experience & Performance 5/5
The Sunny SF-B1709 is a great bike to ride. It’s silky smooth to ride, and even when applying lots of power, it just works so well. The resistance lever is a lovely touch instead of having a dial, and the different handlebar positions, including the drops, work great.

Construction Quality & Durability 5/5
When we first ordered the SF-B1709 for the price it was, we didn’t know what to expect. We really didn’t want it to be flimsy or just rattly, but that wasn’t something we needed to worry about. It’s a solid bike, and it feels very well-built. It all goes together really well, and it just feels like nothing is over or under-engineered.

Assembly Process 4/5
The assembly I personally found very interesting. Although it looks overwhelming when you first open the box, it is actually a very simple bike to build. The instructions were very clear, and for me personally, it took around 30 minutes, but I would allow an hour. It comes with all the tools, and apart from putting it into place, there’s very little lifting.
Comfort & Adjustability 4/5
We scored the SF-B1709 a three on comfort. Although it has more than enough adjustability to play with, we found the saddle pretty uncomfortable. We appreciate it’s a personal thing when it comes to saddles, and everyone behind is different.

Connectivity 2/5
Then we have connectivity. The Sunny SF-B1709 doesn’t offer connectivity to applications. It doesn’t mean you will have a bad experience and can still follow applications like Sunny’s App, Peloton, and iFit. There’s always the option of investing in power meter pedals and doing so for applications like Zwift, but they are more than the bike.


Support, Financing Options & Warranty 4/5
The customer service gets good reviews if you require any after-sales assistance, and the support is better than other spin bike companies. They offer finance options on all their products, and the standard warranty is three years structural and 180 days on parts and components.
Value For Money 5/5
Coming in at $400 on an offer currently, the Sunny SF-B1709 comes in at a very low price. It’s incredibly cheap and even comes with free shipping. This is just a huge bargain to be had, and we couldn’t quite believe it cost as little as it did.

Comparison With Alternative
Sunny Tryden
A close comparison coming in around the same price is the Tryden, also from Sunny. It has Bluetooth Connectivity to some applications and a sleeker look. Ideal if you are looking to connect to applications, but it doesn’t offer as many positions on the handlebars and comes with a much heavier flywheel. It looks flashier but is slightly more basic under it all. Well worth a look at.
Verdict
Not only does it look great, but it offers such a lovely ride, and the experience it gives is very personal and does feel like a spin bike, not a cheap exercise bike.
The Sunny SF-B1709 is a great bike, and for the money, there’s very little that can step up to it unless it is a similar Sunny product. Not only does it look great, but it offers such a lovely ride, and the experience it gives is very personal and does feel like a spin bike, not a cheap exercise bike. We highly recommend it!
Quick Answers
How hard is it to assemble the Sunny SF-B1709 bike?
It is very simple to build. While it looks overwhelming right out of the box, the instructions are clear and it comes with all the tools. It took me about 30 minutes, though I would allow an hour. Aside from putting it into place, there is very little lifting involved.
Does the Sunny SF-B1709 connect to Peloton or Zwift?
No, the bike does not have smart connectivity and only has a basic display. However, you can still follow along with apps like Peloton, iFit, and Sunny's App on your own. You could invest in power meter pedals to use Zwift, but those will cost more than the bike.
How much does the Sunny SF-B1709 cost?
The Sunny SF-B1709 currently comes in at $400 on offer, and it even includes free shipping. We think it is a huge bargain and incredible value for money at that price.
What is the warranty on the Sunny SF-B1709?
The standard warranty gives you three years on the structural frame and 180 days on parts and components. Sunny Health and Fitness also offers financing options on all their products and provides good customer support if you ever need after-sales assistance.
How does the resistance work on the Sunny SF-B1709?
The resistance on the bike is silky smooth. Instead of having a traditional dial, it uses a resistance lever, which is a lovely touch. It performs great even when you are applying lots of power during hard sprints.