Discover the ultimate in mountain biking performance with our premium selection of RaceFace Aeffect Cranksets, available in 165mm and 170mm arm lengths. Engineered for aggressive trail riding, these cranksets deliver lightweight strength, durability, and cutting-edge technology designed to elevate your mountain biking experience. Crafted from high-quality 6066 aluminum, they combine robust construction with a sleek, black finish for a stylish and functional look. Featuring the innovative CINCH system, these cranksets offer unparalleled versatility with interchangeable spider options and a 24mm EXI interface spindle that seamlessly fits Race Face X-Type or Shimano Hollowtech II bottom brackets. The direct mount chainline options (51mm and 57.5mm when flipped, 49.5mm for 2X Cinch, and 52.5mm for Boost 2X) ensure compatibility across various hub standards, including 135/142 MTB, 141/148 Boost, and 150/157 DH hubs. This adaptability allows for precise chainline tuning and optimized drivetrain performance for any trail or racing scenario. Designed for 9 to 12-speed drivetrains, these cranksets support a range of gear configurations and are sold separately with no rings or spiders included, giving you the flexibility to customize your setup. The crank arms forged construction enhances strength while maintaining a lightweight profile, perfect for demanding mountain terrain. The inclusion of the CINCH removable spiders and direct mount rings, with a specialized 20-tooth ISIS cup BB tool for installation and removal, simplifies maintenance and upgrades. Whether you’re tackling XC trails, enduro descents, or all-mountain adventures, RaceFace Aeffect Cranksets are built to withstand the rigors of aggressive riding while offering exceptional performance and style. Elevate your mountain biking setup with this versatile, tech-forward crankset lineup designed for serious riders seeking durability, performance, and customization in one high-quality package.