Sunny Health & Fitness Smart Under-Desk Bike Exerciser, Low-Impact Cardio Cycling Equipment for Home/Office, Mini Paddler for Arm/Leg Mobility Training, Free SunnyFit App Connect, Optional Motorized

I a 73-year-old woman and fractured and dislocated my shoulder on 10/24/25. I was able to assemble this cycle in less than 10 minutes by using a 14mm ratchet. It’s nice and tight, no squeaks or noises. The directions tell you how to screw on the pedals in two places, I.e. the pedal itself and the printed manual. There’s no excuse for screwing it on the wrong way. It doesn’t slip on my rug when I use it for my legs. I put it on my knitting blocking squares to keep it from scooting on my table when I use it for my arms. I bought it because I needed a very basic cycle for my arm therapy. It really helps. It’s just the right size and doesn’t take up a lot of space. I will update if there is a need to, but so far, so good.

So the first thing you should be aware of is that Sunny makes full-size exercise equipment. They are quite well-built and this little unit is no different. With that said, I bought mine used as an Amazon Warehouse Deal, and had an issue right out the gate--which is why I assume it was returned to Amazon for the Warehouse Deal program in the first place. The pedals could basically move just a few degrees back and forth before they'd get locked up on something internal. I ended up needing to get a crank removal tool to open it up, as case removal is blocked by the cranks on either side. Immediately upon opening it, I was able to see the issue: the retaining bolt for the magnet arm had backed out and was interfacing with the spokes of one of the internal wheels. After I tightened this down, everything worked great. It also gave me an opportunity to see the insides of this thing. So looking at the internals on this... I'm glad I got this instead of the $40 friction-based machines scattered all over Amazon. Those things either use a bolt directly on the mechanism, or a strap that you tighten--both vastly inferior to the magnetic system this uses. Basically, YOU are the electromagnet generator, and the dial moves the magnet closer or further from the internal wheel. Friction-free resistance with little to no wear! For assembly, the instructions aren't too user-friendly, but are VERY detailed. Take your time; there's so few parts to install, you just need to make sure you abide by the 10 warnings about using the correct parts on the correct side. One side is reverse-threaded so that your movement doesn't loosen them. Don't mix them up (and DON'T cross-thread them if it's not going in correctly), torque everything well and you shouldn't have an issue. Sunny also appears to have parts for everything at the ready, which is great to know. Remember the warranty on the mechanicals is only 6 months (frame is 12 months), so make sure everything is in good shape. This is a mechanical device, so some basic care is still required--treat it like a bicycle. The manual (also available on their site) has a great explosion diagram of all the parts and their names. Down to use--this thing is great. Extremely quiet and the magnetic resistance system is great. Definitely a noticeable difference between settings, with the higher settings delivering a good challenge; I'm sure everyone who gets will find a range to use. The on-board computer is good for distance and speed, but doesn't interact with the resistance setting, so take the calorie counter with a grain of salt. Just get your heartrate and breathing up, and work up a sweat. Bottom line: it's great and if you're even looking at this one vs the cheap ones on Amazon, JUST GET THIS ONE!

Update 12/9/2019 I have been using my bike for almost 6 months and I wanted to update a few things: Battery Life for display: Batteries that came with it lasted for 660 miles 2- AAA Duracells lasted for 518 miles Caveat - When I first had the bike, when not pedaling I just rested my feet on the pedals. Now, I keep my feet on the pedals and rock back and forth a lot more now which keeps the display on without adding any miles. I also changed the batteries as soon as the display got dim so I would not lose my stats midweek. Another idea for the still lame display: The time function show minutes and seconds, when it gets to 99:59 it then resets to 0. As I usually keep my stats accruing for a week, it would be so much nicer if when it gets to 59:59, it would switch to hours:minutes and keep going. Mechanical update: After cycling for almost 1200 miles, the bike has not made that clicking in noise in a long time. Probably 2 months. Still super smooth and quiet. However, the plastic strap on the right pedal keeps popping off on the outside. Also, I have changed the way I keep my castered chair from rolling away. Before I used "bed and furniture stoppers," but once dust accumulates under the rubber, they no longer stay. I cleaned them a half dozen times and they stuck for a while after each cleaning. I finally just got 2 velcro straps that go around the front support and then around the front 2 wheels and it works a lot better. So all in all, I still LOVE this bike. In the 6 months I've had it, I've burned 29,000 calories while sitting at work and my leg muscles are pretty strong. ---------------------------------------------------------- I love using my bike at work. I do not know how accurate the measurements are, but by biking off and on during the day, it says I burn about 500 calories. I have racked up 660 miles since I got it June 1st (almost 3 months). The display has an upper and a lower number. I have no idea what the upper number shows. The bottom number cycles through: Distance, Calories, Odometer, RPM, and Time. Apparently if you buy your bike in the US, units are in miles. You can reset the values by holding the button for 3 seconds. By pressing the button you can also cycle through the options and choose one to stay on instead of scanning. Pros - so smooth to peddle. Very rarely there is a bit of a click as I peddle, but by shifting my angle it goes away. I can peddle while typing and using my mouse very well. When I need to do very careful adjustments with my mouse I have to stop. My swivel office chair does move side to side a bit when I peddle, but I am sure that is good for your core strength and is not distracting after you get used to it. - quiet. My coworker right next to me cannot hear it. My chair makes more noise rotating side to side a bit. I keep a can of WD-40 for my chair at my desk for it. - comfortable. Even while not pedaling, I like to keep my feet on the pedals - I find I naturally do this every time I sit. Sometimes I just rock the pedals forward and back as a kind of fidget device. - I can peddle backwards and it still counts towards miles. WARNING, peddling backwards may loosen the peddles, so I do this infrequently and have never had a problem. Cons - the display upper number. I have no idea what the upper number shows, So it is pointless. - the display does allow you to pick a setting to stay on, but each time you stop pedaling (if I'm on the phone or doing careful work with my mouse) it resets to scan. I would love to be able to have the top number be set on something and stay that way since it does not seem to have any use. - the display has faded over time and now I cannot see it at all. If I shine my cellphone light from the side, I can see the readout, but that is a pain. ***Update: The display quit working altogether the day after I wrote this and I realized my batteries had been dying and were now dead. I use it a lot but I would think 2 AA batteries would work longer than 3 months. Maybe the ones that came with it were really cheap. I'll see how long a couple of Duracells last. - did I mention the display? feels really cheap compared to the solidly built bike. There is a problem if your office chair is on casters of rolling away from the bike. I have seen that some people will attach a strap of some kind to the bike and chair. I have purchased a "Bed and Furniture Stopper" 4 devices that keep my chair wheels in place - I wish there were 5, but came in packs of 4. It works pretty well. though I do have to adjust them once in a while. To keep the bike from moving back, I cut a 2x6 to the perfect length to wedge between the bike and the wall. It stays put very well. Even though the bike is fairly heavy, there is no way to keep it from moving over time without a block of some kind. So in summary, I love the bike mechanics, hate the display. Since the bike function is by far the more important aspect I only took 1 star off from the awful, awful, display. I hope this was helpful.

I was excited to get this in the mail! It was easy to put together and I have arthritis in my hands as well as poor strength (not many steps were needed to put together and it cam with tools). I live a sedentary lifestyle and I was wanting to be more active, but start gradually. I experience random knee pains, muscle fatigue in legs, hip pain, and othe msculoskeletal problems. I use this cycle 3-4 times a week sometimes more and it has helped me with my mobility as well as reduce joint pains and muscle fatigue. After reading all of the good reviews on this product, I decided to give it a try. I had planned on buying a $20-$30 cycle, but found low ratings and poor quality. So this is the one I went with and I am so glad I did. This cycle does not slide like many have commented on. I use it on carpeted floors, but I don't keep it on high resistance...usually 2-3 setting.This cycle is a bit on the heavy side, but it is easily transported by the convenient handle. I started out using the bike on "2" and it was very fluid without any problems.The readout is easy to read ( although I wish it had a light to read at night or in darker areas). It is extremely quiet!! I don't use the feet straps, but my feet do not slip at all. I have no other cycles to compare this item to other than the stationary vertical and horizontal bikes I have had in the past. This bike by far surpasses those other bikes because it doesn't irritate my groin area or put my back in an awkward position and cause back pain and fatigue. My only problem is finding a "comfortable" chair to use this with. For now I simply have a folding chair and that works fine and supports my spine. I would rather use a recliner, but that would probably not be good for my back because I use the cycle for 30-60 minutes at a time...usually while watching tv or taking a break from housework. If you are in search of a quality lower body floor cycle, this is a great investment

I rarely write reviews, but since I like to see others experiences with items before purchase, and am especially interested if someone has had a poor experience, I decided to write something as a warning for anyone interested in purchasing this mini exercise bike. It's very nice in concept, not difficult to put together, quiet when working properly, not too heavy to move around. But it will move around on the floor as you pedal. There are two things a prospective buyer needs to know. First of all, the rubber end caps on the horizontal bars which rest on the floor leave a black residue which is pretty much impossible to get out. We have the bike resting on a white basement carpet. As the bike moves while peddling, there is some sort of black ooze that stains the surface below. I would recommend putting it on a surface that you don't care so much about. But the main reason for this review is that after a bit more than two months of use, the bike started making a clanking sound after about 30 minutes of peddling, which would get progressively worse the longer one would peddle, until the loud racket makes it hard to listen to it gets so loud. Since it was passed the return option date, Amazon gave me contact information for the company since it was under warranty. After a couple days the company got back to me, indicated that it was likely an internal issue, and they would need to replace the bike. I even emailed them an audio recording of the noise. That was the last I heard from the company. So, three days later I contacted Amazon again, and after sending Amazon my email correspondence with the company, Amazon contacted the company and were told that they - Amazon - should remedy the issue. We still have the defective bike, but were issued a refund. So, kudos to Amazon for taking care of this. I honestly don't know that I would have trusted a replacement, and the rep from Amazon felt the same way. This is on my wife's Amazon Prime account, but since I was the main user of this bike I wanted to write the review.

Cycling isn't smooth, but somewhat jerky unless you are going fast. Easy to put together. Stable.

So quiet. Works well for our wheelchair bound son. Keeps his blood flowing. Instructions could use a little help.

I use this on my arms with a non-slip pad underneath. It works great! Easy assembly. Great workout.