Re: Cheap tires?
No. Friends don't let friends ride on Cheng Shins. If you were selling a bike, and it needed a new tire or 2 they would be the cheapest rim protectors you could get, apart from a used tire.
Look at Shinkos if you need an inexpensive tire. They are a deccent tire for the $ and they stick well. Like any tire, you need to choose the correct size and construction, speed rating, load rating, and rubber stickiness.