TheRace Face AEffect Cranks Direct Mount Single Ring. The all newAEffect crankset is designed to handle aggressive trail riding at a XC crank weight and attractive pricepoint. Featuring the Cinch System with its interchangeable spider options and our trusted 24mm EXI interface spindle, theAEffect is a rock solid crankset for today's modern XC and trail rider Race Face AEffect Cranks Direct Mount Single Ring Features Completely new for 2016 The crank arms are deep pocket net forged from 6066 aluminum to optimize stiffness Features our CINCH removable spider interface which offers the ability to convert between existing chainring standards while remaining flexible to future developments Bottom bracket sold separately. Includes Direct mount, 1 x 9/10/11 speed, narrow-wide chainring in either 30 or 32mm