Its like they just used the same clearance from the bmx race frames that run like 1.5” tires. I posted a bike for sale last year and when I took the photos, I left it in the granny gear . I got criticized because of the length of chain on the bike. People who claimed to work in bike stores, or manage bike stores were saying it was too short. I sized it EXACTLY how shimano tech's tell people to size the chain. Be sure to check out our homepage for all the latest news, and follow Electrek on Twitter, Facebook, and LinkedIn to stay in the loop. Check out our YouTube channelfor the latest reviews. While HeyBike has a variety of bikes, from the beastly HeyBike Explore to the affordable HeyBike Ranger, the Mars Hyper inches the brand into something a bit more exclusive and higher end. With yellow and black matte finish paint, the bike looks incredibly good for such a unique frame. Check out that Facebook group for lots of tips. It's heavy, so a little difficult with a dead battery. Most important factor is to check your tire pressure frequently. Makes a huge difference in how hard it is to pedal. The bikes aren't very powerful, but as Class 1 e-bikes, are generally allowed to go anywhere that a regular bicycle is allowed. Their BMX bikes, which are at the origin of the company, are of superior quality. When the wheel turns the soundcard vibrates and makes the engine sound and the exhaust pipe makes the sound louder. Great for adding street cred to any kid with a bike. Makes your bike look and sound like a motorbike - very cool. Not a bad bike who is on a budget, or who is just starting out. Tires are ok to start with, but they are only 1.95. Wider upgrade is probably a good idea at some point. Walmart is generally synonymous with cheap things. The rule of thumb in the world of biking is that if it’s cheap, it’s probably not worth it. If you are an experienced cyclist or have the ambition to be one, it will be more optimal to go to a higher range, and buy a corresponding bike, which will obviously be much more expensive.