I'm quite new to cycling so you'll have to forgive me..
I was riding home today when I heard a loud clunk from my rear wheel.. closer inspection revealed that one of my spokes had dropped out.
I have no idea if this is a serious problem and I'd rather not pay for a service my bike might not need..
I'd really like to fix this myself if I can but I have no idea how to do this or if its even advisable for me to try.
Any advice would be really appreciated,