The ZeroQ crank from Qu-Ax is one of the few crank sets on the market that is built for vigorous jumps and heavy impact. These cranks are compatible with all ISIS hub systems (found on most MUNI and advanced Freestyle unicycles) and will also work with your favorite pedals. The 'ZeroQ' part of the name refers to the amount the crank 'bends' outwards - in this case Zero! That makes this a crank better suited for fast riding. The crank is also wide enough to support feet for some advanced freestyle tricks. Please note that you'll need a crank extractor to remove these from your unicycle. Price is for one pair.