Sunny Health & Fitness Stationary Bike, Synergy Pro Magnetic Indoor Cycling w Free SunnyFit® App - SF-B1851

With its belt drive and magnetic tension my new indoor bike seems more finely __quote__tuned__quote__ than my old, and certainly smoother and quieter, yet has the same stability and durability. I've made a good step up. I haven't learned the electronics yet but expect they will also result in better workouts.

I can't say enough good things about this bike. The shipping was quick, the assembly was easy, it's whisper quite and seems so well built. What a great value for the price!!! I'm so glad I did not pay 3x the money (or more) for a comparable bike. So much fun to ride and easy to move around from room to room, or indoors to outdoors. Love everything about it. The seat is padded and fine for most people, but I will replace it for a larger more cushiony seat only because I have no junk-in-the-trunk, other than that, I'm loving it!

I've had my Pro Magnetic Cycling Bike for about a month and I am extremely satisfied with it. I did a lot of research and shopping around before this purchase and I really feel like this bike is the best buy. While it's not __quote__connected__quote__ like a Peloton or Echelon bike (where the cost is much, much more in addition to a subscription), Sunny Fitness provides no-cost training videos that you can ride to. The price for the Pro Magnetic is very reasonable. My schedule forces me to workout early before any gyms open and this provides a great ride. It's smooth and extremely quiet and definitely a step above the trainer I'd been using for years. The ordering process was great and I received it a few days sooner than scheduled. It is heavy and cumbersome to handle and I had to open the package and carry it to the basement piece by piece. Assembly was pretty straightforward and took about an hour. There was one, slightly defective part (a plastic snap was broken), but Sunny has been right on it to get a replacement part. I would definitely recommend this bike to others.

The bike seat is an issue as it is not suited for all types of bodies. Other than that, it performes well. Easy to assemble, and a perfect size for our home.

So bar the bike is great. Quiet and sturdy. The only issue I have is that the Pulse Sensor on the handlebar barely works. I've tried multiple positions of my grip, but nothing works. It might display a reading (inaccurate) for a few seconds, but then nothing.

The bike/flywheel rides smooth and has plenty of resistance for a great workout. The price was excellent being on sale. The very horizontal angle of the handle bars is too extreme for me. I want to turn the stem around which would give the handle bars a slight pitch upward, but I would need to 'drill a hole' at the correct spot in the stem to insert the adjustment bolt/screw, so? And the seat is way too minimal like for a competition rider. I just use it for exercise. , so I guess I will have to buy a seat.

Have owned this model for a couple of years now, use it for winter and poor weather indoor rides. My main complaint is that the holes allowing seat height adjustment are spaced like an inch apart and I need the seat stepped up a half space. My riding geometry is off so I'm getting foot and knee pain. Other than that the spin bike works as a rudimentary Zwift trainer after switching pedals to allow an Assiomo Uno to act as a power meter. The lack of geometry fine tuning has me wracking my head for a mechanical tweak to the seat to give me an adjustment.

We purchased the bike as a way for my wife to continue to exercise during her chemo treatments for cancer. When I went to assemble to bike it went together easily with the exception of the left pedal. It was clear that the bolt was stripped and it would not screw into the bike nor would the nut that is supposed to hold it on screw on. I requested a new part be sent to me as part of the warranty we purchased and it has been under review for days. It notes you can leave a claim 24/7 but says nothing about how long it will take them to agree to replace a defective part or not. All we get are emails saying it is under review or to rate our purchase. Would love to use the bike and provide another evaluation. Let's hope that happens sooner than later.

Not sure if all the bike models are the same but mines came falling apart and making noises

I purchased this in 2020 during Covid (about 200 total hours on it) and already had to replace the bearings in 2022 (out of warranty), and now the magnetic tensioner just broke. As I twist the knob, it no longer stays fixed in the frame, but moves up and down, the entire assembly slides. Nothing bolts seem to be loose and see no way of fixing it adjust the tension. Be careful of long-term quality.