Sunny SF-B1805 Review

This is my official Sunny SF-B1805 review, and in this review, we’re going to go through the ten separate categories of the TailHappy Score. Then at the end of this review, we’re going to see how the Sunny SF-B1805 stacks up and compares to other indoor cycling bikes I’ve reviewed. This Sunny bike is going to cost you about $600. Click here to check out the current specials and shipping times.

The Sunny 1805 is a belt driven magnetic resistance bike, and it does have magnets on both sides of the flywheel, which contributes to a high max resistance. The Sunny SF-B1805 has a 44-pound flywheel, it’s smooth and silent, and overall, I think it’s a great bike. There’s no electronics whatsoever. The frame is very robust and supports a weight of 300 pounds.

It is a four-way adjustable bike and for the money, I do believe the Sunny SF-B1805 is one of the best open platform bikes you can buy for the money. Overall, I think the Sunny SF-B1805 is better than the TailHappy score is going to reflect, and that is because of two categories that holds this bike back. And the two categories I’m talking about are metrics and features, and I’ll tell you why. I do think that if you spend a few extra dollars on accessories to beef up the metrics and the features categories of this bike, it really improves the top score overall.

The first category in the TailHappy score is Drive Train Feel. And simply put, that is how does the bike feel to ride? As I mentioned before, theSunny SF-B1805 has dual magnet stacked surrounding this 44 pound flywheel, and overall, this is a great feeling bike to ride. The Sunny SF-B1805 is very quiet and very smooth. The 44 pound flywheel on the stunning Sunny SF-B1805 is actually pretty close in weight to what is on the Peloton bike. Plus in general, when riding the Sunny SF-B1805, I’d say it feels pretty similar to the Peloton Bike+ in terms of feel. That’s why I give Sunny SF-B1805 an 8 out of 10 on drive train feel.

The next category is Maximum Resistance. There are a lot of bikes out there that lack on maximum resistance, but the dual magnet stack on each side of the flywheel on the Sunny SF-B1805 is one thing that I think makes this bike have such a good maximum resistance, similar to how the Peloton hardware works. If you crank the maximum resistance of the Sunny SF-B1805 up to max, I feel it equals about 85 or so on the Peloton Bike+. For most people in terms of anaerobic workouts, 85 on the Peloton Bike+ is definitely sufficient. Therefore, I give the Sunny SF-B1805 an 8 out of 10 on max resistance. Again, maximum resistance on this bike is actually really, really good and very close to the Peloton Bike+.

The next category in the TailHappy score is Metrics, and that is simply what kind of metrics can you get on the bike? Unfortunately, or fortunately, depending on how you look at it, the Sunny SF-B1805 does not come with any sort of electronics attached to this bike. So what that means is out of the box you do not get metrics such as your cadence or what your resistance is, and also you do not get your heart rate either. Additionally, you do not get your power output on this bike in comparison to the Peloton Bike+. Unfortunately, I have to give the Sunny SF-B1805 1 out of 10 for metrics. The good news is you can install something like a Wahoo cadence sensor on the crank arm of the Sunny SF-B1805, and then all you need to do is download the Wahoo app and you can get your cadence on the app, as well as your heart rate. All you need to do is get your own heart rate monitor.

The next category is Features. What kind of features does the bike have? Does it have automatic adjusting resistance? Well, no, not on this bike. Is there a leaderboard? Well, no. There’s not even a tablet that comes on this bike. However, because of that, there is no recurring monthly fees associated with Sunny SF-B1805. Also, the Sunny SF-B1805 does not come with clip-on pedals. You get a standard cage on one side and normal pedals on the other side. However, in theory, it does appear possible to add a clip to this pedal. The good news is the crank arm does have a standard threading, so if you want to add SPD pedals, you can do so, similar to the Peloton Bike+. Due to the lack of features on the Sunny SF-B1805 out of the box, I do have to give this bike a 1 out of 10 on the “Features” category compared to other features commonly found on indoor bikes.

It really hurts me to give this bike a “1” in the Features and the Metrics categories because I know at its core this bike is great! But looking at the bike just by itself, when you compare it to other bikes that I’ve reviewed, it really just doesn’t come with common things, however, I’ve told you easy ways around this.

Moving on to the next category of the TailHappy score is Adjustability. This bike is four way adjustable, meaning these handlebars can move forwards and backwards, and there’s also another max level for raising and lowering the handlebars. On top of that, there are no holes you need to click into in terms of those adjustments, so you do get micro adjustments. On the saddle you can see you get 24, plus an extra max in terms of raising and lowering the saddle. You can also move it forwards and backwards with micro adjustments. I’m 6’5″ and I find this bike to be comfortable with the adjustments. The handlebars come up quite high in comparison to where the saddle comes up to. With 4-way adjustability, I give Sunny SF-B1805 a 9 out of 10 for Adjustability. The Peloton Bike+ doesn’t even have the ability to move the handlebars forwards and backwards.

The next category of the TailHappy score is Comfort, and this takes into account the points of contact you have with the bike. The first point of contact you have with the bike is the handlebars, and the grip material is nice. It’s a nice rubberized coat and you do get these really long stretched out handlebars, so you get a lot of different variety and where you can put your hands. The handlebars have a nice thickness to them, and the rubber material feels really nice to the hands. The next main point of contact you have with the bike is the saddle, and it’s a pretty wide saddle. It has a little bit of cushion to it. It’s not too squishy. I do think that most beginners would be very happy with this saddle. The next point of contact you have with the bike are the pedals, and these pedals are perfectly comfortable to ride. There’s no sharp teeth sticking out. They’re not too small and they’re not too big. Good quality material. They work just fine. The resistance knob is a plastic material, and it feels perfectly fine to touch and rotate and adjust your resistance. Another thing I like to take into consideration for comfort is how high do the handlebars come in relation to the saddle height? And on the Sunny SF-B1805, I do feel like the handlebars do come up sufficiently high to be comfortable while riding this bike. So in terms of Comfort on the Sunny SF-B1805, I give it a 9 out of 10.

The next category is Style, basically, what does this bike look like? Is it aesthetically pleasing? You know, it’s going to be in your home, after all. I like the standard flat black that the Sunny SF-B1805 uses. The red accents are pretty similar to most other bikes, it’s a good looking bike, and the metal accents give it a nice touch. The exposed flywheel on the Sunny SF-B1805 does look pretty good. While the dual magnet stack up on the front of the bike is very effective, I have to admit it’s not the most beautiful thing I’ve ever seen. Overall, I give the Sunny SF-B1805 a 7 out of 10 for style.

The next category is Convenience, and that is basically how easy is it to just jump on the bike and start riding it? Also taking into account how easy is it to join an instructor led class and get your metrics and all of that? So since the Sunny SF-B1805 does not come with a tablet or any metrics whatsoever, you do need to hook up your own device if you want to get your metrics, such as cadence and heart rate. And if you did want to do the Peloton Digital app or Apple Fitness Plus, you do need to add your own tablet or set it up in front of a TV. So there is a little bit of a process here if you want to join an instructor led class and also get your metrics – it’s not quite as convenient as just hopping on the Peloton Bike+ and having all of your metrics right up here on the screen. So you are going to need to remember to keep your tablet charged and keep your devices charged and hook all that stuff up. Overall, I give the Sunny SF-B1805 a 4 out of 10 for Convenience, but of course, it is easy to hop on this bike and just start riding if you don’t care about doing instructor led classes or hooking up any metrics.

The next category is Initial Quality Impressions, and this is basically just how do I feel about the quality of the bike? The frame of the Sunny SF-B1805 is actually very robust and has a nice metal material, and it feels like it would last a long time to me. Looking at the mechanics of the resistance, it looks pretty robust and like it would last a long time. The brake pad is leather and the 44 pound flywheel feels very robust and good quality. And looking at the mobility wheels, they are a high quality wheel very similar to what you would see on a roller blade. Out of the several Sunny bikes I have reviewed, I do feel like these Sunny bikes are a high quality bike in general and the Sunny SF-B1805 I give a 9 out of 10 for Initial Quality Impressions.

The final category is Value, and that’s basically what do you get for the money? The Sunny SF-B1805 will cost you about $600, and the drive train feeling and the maximum resistance on this bike are great. It’s one of my favorite bikes to ride, and since it does not come with any sort of electronics or anything, there are no recurring fees required – you just pay that money up front. Taking all the previous categories into consideration and then considering it only costs $600 to buy the stunning Sunny SF-B1805, I give the Sunny SF-B1805 a 7 out of 10 for value.

Adding up all of the separate categories of the TailHappy score, the Sunny SF-B1805 earns a 63 out of 100. And while 63 out of 100 doesn’t seem like a super high score, I really do feel like the Sunny SF-B1805 is one of the best indoor cycling bikes I’ve reviewed. It just lacks in the Metrics and the Features category. As I mentioned in the beginning of the review, if you just add a few extra dollars to spend on things like a Wahoo cadence sensor, it really boosts up the Metrics category. And also, if you added some speed clipping pedals to the spike, I really think that would add to the Features category. The thing to focus on is that this bike is mechanically sound and it has good bones to it.

So if you’re looking for a bike that is open platform and doesn’t have a bunch of electronics on it, the Sunny SF-B1805 is a really good bike for that. The 44 pound flywheel carries a lot of momentum through and evens out your cadence. And it feels really good in and out of the saddle and has a really good maximum resistance with 2 magnets on each side of the flywheel. The resistance feels very smooth and very linear, and it’s very quiet.

As always, I’m not trying to convince you to buy the Sunny SF-B1805. You can check out my other reviews and comparisons to make an informed buying decision. There are a lot of great bikes out there, and I do believe the Sunny SF-B1805 is mechanically one of the better ones.