Sunny SF-B1709 Bike Review (Hands-on)

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robbie ferri headshot
By Robbie Ferri

Personal Trainer & Cycling Instructor

Robbie from “Riding with Robbie” is a Personal Trainer living in in Norfolk, UK. He has bikepacked all over the World, and also raced ultra distance at a top-level. He has worked closely with industry leaders such as Shimano.

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?
Sunny SF B1709 zoom out

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

Sunny SF-B1709 Rear Drive Bike

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.

Price & Reviews Check Holiday Sale

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:


  • 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


  • 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!

YouTube video

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

Sunny SF B1709 rear view

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. 

Sunny SF B1709 resistance handle

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. 

Sunny SF B1709 rear flywheel

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. 

Sunny SF B1709 seat adjustment knob

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. 

Sunny SF B1709 while riding 2

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. 


Sunny SF-B1709 Rear Drive Bike

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.

Price & Reviews Check Holiday Sale

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!

Robbie Ferri CPT

A Personal Trainer and Ultra Cyclist living in King's Lynn in Norfolk, UK. From Ultra Cycling World Records to Bikepacking Races and a huge amount of time on the gym floor training myself and clients my experience when it comes to Health and Fitness is vast.

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