The FSA SL K Light Compact EVO 386 is an ultra light, compact 5034 tooth crankset that lends knee saving grace when you're tackling steep grades, also facilitating a higher cadence on the flats. Hollow carbon arms shave precious grams on your lightweight build, while the crank arms' unidirectional carbon finish provides extra stiffness for high power output. Complementing the SL K's extremely light, super stiff characteristics are ceramic bearings for smooth spinning performance. Furthermore, you'll find this compact crankset accommodates the BB386 EVO standard, which works with adapters that insert into most common bottom brackets. Check with FSA's compatibility chart for fitment with your specific bike frame.