The type of cleat that you need is dependent on both the cycling shoe that you have and the pedals that you have on your bike, the shoes along with both the cleats and the pedals. For example if you have SPD-SL road shoes then you will need the SPD-SL road cleats and a pedal that takes that design, this is a 3 bolt cleat design.
Mountain bikes will usually be a 2 bolt cleat design and will again need to be compatible from the shoe to the pedal.
To see what we offer please click the respective product catagory, Cycle shoes http://www.wiggle.co.uk/cycle/cycling-shoes/ , cleats http://www.wiggle.co.uk/pedal-cleats-1/ and pedals http://www.wiggle.co.uk/pedals/ .
Please always ensure that you read the full product description and data on the items page but if you have any further questions then please feel free to chat with us via Live chat (Typically available between 06:00 and 21:45).