Built off the proven Next R crank arm shape and spindle insert, the Next SL stands to be lighter, with major improvements in durability and carbon consistency. Made in Canada with American-sourced carbon, the Next SL is also stiffer, improving power transfer and giving you the competitive edge on your pedal-oriented cross country rig. - Increased stiffness and strength improves power transfer - Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments - Includes 30mm CINCH spindle, and is power meter compatible - Direct mount chainline: 52mm / 58.5mm (Flipped Ring) - 2X Cinch spider chainline: 50.5mm - Boost 2X Cinch spider chainline: 53.5mm - Number of Chainrings: No Rings Included - Chainline/Hub Compatibility: 135/142 MTB Hubs, 141/148 Boost Hubs, 150/157 DH Hubs - Crank Intended Use: Mountain - Pedal Spindle: 9/16" - Spindle Interface Type: RaceFace/Easton CINCH - Chainring BCD: Direct Mount CINCH - Weight: 418 - BB Included: No

The Race Face Aeffect crank is designed to handle aggressive trail riding at XC crank weight and an attractive price point. Features the CINCH system with its interchangeable spider options and a 24mm EXI interface spindle. - Crank arms forged from 6066 aluminum - Compatible with all CINCH direct mount rings and spiders to easily convert between existing chainring standards - Compatible with direct mount, 1x, 2x with - and without bash, and 3x configurations - 24mm EXI spindle compatible with Race Face X-Type bottom brackets or Hollowtech II compatible bottom brackets - CINCH removable spiders and direct mount rings utilize a 20-tooth ISIS cup BB tool for removal and installation - Bottom bracket sold separately