im new to this site and don't know anything about how to repair bikes. My Problem is I put my bike into my shed (the shed is cold and damp) and never used it for 3 weeks, it was ok when I put it in but when I took it out to use it the back wheel has become very stiff, you're not able to spin it freely its just stiff. Im not sure where to start, is it the brakes or can it be something else ???
Any help would be great, the bike is less than a year old so not sure why this has happened. Thanks