I was very excited about this purchase, but after a short time of using it, the resistance break started making a horrible humming noise. As you increase resistance, the break presses against the wheel and creates a very loud humming noise that makes it very hard to enjoy your work out. I unfortunately cannot increase resistance because the noise it makes is so irritating! I would not recommend this bike to anyone. I've only used it for 2 months and I'm already regretting this purchase.

It's a great bike! Keep in mind it's simple so if you're looking for bells and whistles, I'd recommend checking out their other bikes. This is perfect for what my son and I needed it for which was to just hop on and get some exercise in.

Bike rides well. I was worried it wouldn't be enough of a challenge for me but there's a good range of resistance that's suitable for any skill level.

Resistance is good and feels smooth when changing tension and I like that the bike comes with a bottle holder.

I really loved this bike, purchased in late April, and used it almost every day for 3 months. I even got a couple of friends to purchase Sunny bikes after my initial experience. Fast forward to a month ago, when my left pedal crank snapped at the axel during a normal ride. I contacted support as this should be covered under the warranty. Once I received my replacement parts, there were no instructions included and it was not a repair included in the manual instructions. I contacted support again and eventually received repair directions via email and also had to purchase a tool. Because the crank snapped a metal piece it is completely stuck inside the center axel, and even by following the instructions, asking support for help, and getting help from my husband and people stronger than me the broken axel will not budge. I’ve tried to be patient (my initial warranty request was a month ago) but at this point I’m very frustrated with the customer service I’ve received so far. Between reaching out to customer service multiple times and trying to repair the broken part multiple times I have spent hours on this and still have an unusable bike a month later. Simply receiving a replacement part for a part that physically cannot be removed is an unacceptable warranty policy. I’ve reached out to customer support via email to request a different solution and have not received a response back yet. If Sunny makes this right and sends a usable replacement I will change this review but as of now I cannot recommend to anyone.

Assembled this unit in 30 minutes. Loving the bike after my first few rides. I was looking for something that was affordable but can still provide a good cardio workout. This bike fit the bill. So far I'm satisfied with my purchase.