Profile Mini Cassette Driver Titanium Standard

These Profile Mini Cassette Driver Titanium Standard shave around an ounce of weight versus the chromoly versions. Their 4 pawl design ensures that at least 2 pawls are engaged at all times, meaning that when you apply power to the pedals, it is instantly transformed into power at the rear wheel, unlike lesser hubs that take a quarter to a half a crank's worth of rotation to engage.