The Shaman Racing Drake Chain Guide is particularly useful for all the daredevils out there! It performs reliably and will keep your chain from falling even after severe jolts. Plus, it is very durable, thanks to the sealed ball bearings. It is compatible with ISCG05, ISCG or BB and is easy to install. The Shaman Racing Drake Chain Guide is a fantastic little add-on that is perfect for both racing and commuting.