Based in Xiamen, China we have the advantage of being at the heart of the carbon fiber industry. Our international team brings expertise in engineering and design. While the Consumer Guarantees Act and Fair Trading Act provide the basis for The Warehouse’s returns policy, we in fact go above and beyond the expectation of these two statutory laws. The Warehouse has a 60 day Money Back Guarantee with printed proof of purchase. For a product to be returned under our policy, that product must be in a resalable condition unless faulty or otherwise defective. It's this policy that provides you peace of mind while shopping at The Warehouse. The bike gears and peddles are slightly stiff, but I am sure it will loosen up with a bit of oiling and riding. I would recommend this bike if you are on a budget and need basic transportation for getting around because it does the job and serves its purpose. As far as cheap mountain bikes go, overall the Havoc Hyper FS mountain bike isn’t really all that bad. A few problems I found with the bike are as follows-First, I don’t like how the handle bars are designed because you need a wrench to tighten them up and put them on. It has a lightweight aluminum frame that lets users ride harder for longer, providing a reliable experience. I was a bit surprised by this because the manufacturer should have sent us the part since the bike was just ordered brand new and we had the order number and receipt. For a product that would have cost the company a minimum of $10 to ship out, I did find it a bit frustrating that their customer service was so poor and we ended up having to pay for the replacement ourselves. The Back tire isn’t fitted in place correctly and is slightly too high up on the rear tire axle shaft. It appears to be tightened in place and secure by the nut screw, but it creeps me out a bit that if the nut were to unscrew a bit the tire would fly out…. I tried to unscrew it and snap it in place, but the machine that put the nuts on really did a job and got that thing on really tight, so I decided to leave it alone.The last and probably the biggest problem was that there was no quick release for the bike seat, it was missing from the set. This Shimano bike also has powerful linear pull front and rear brakes, a deluxe padded MTB seat and an alloy quick-release seat clamp for easy height adjustment. Other components include spoked wheels, resin platform pedals, a rear derailleur and a three-piece high-performance crank. The authentic Hyper graphics complete the look and give this 20? boys’ bike a stylish appearance. The Hyper Havoc FS mountain bike is 26? in size, it is a 21 speed mountain bike, with Shimono gear shifters. Before I get into all the cons with the bike, I will first tell about the pros.The most obvious pro is the price, this bike is very cheap and affordable for what you get in the box and for most purposes of daily commutes to the store or to work, it will do perfectly. So far I have owned this bike for close to a month, so I will tell my thoughts about all the pros and cons I have found.The bike is easy to ride as long as you adjust the seat, oil the chain, and keep the bike maintained, you shouldn’t have too many problems with it straight out the box. Make sure you use your machine properly and maintain it regularly. Proof of purchase is required in order to get an exchange or a refund.