I need spikes/studs for my motorcycle tyres, they look like this:


There is only really 1 company in the UK that supplies them and they charge an absolute fortune for them. I hear they are cheaper (a lot more common) in the northern lands however I do not even know what you would call them. So, can a bro from one of the aforementioned countries tell me either; what they are called or where to buy them (online). I would be much obliged. In return I will supply pictures of my motorcycle. (!)