KFX Modular 1X Crankset

What Our Gearhead® Experts Are Saying:

“This crankset blew me away the first time I rode it. It’s stiff, super light, and the modular design makes swaps and upgrades so much easier. If you’re looking to shave grams without sacrificing durability, this is the crank to trust.”

The FSA KFX BB392EVO Modular 1x Crankset was engineered for riders chasing peak performance on the trail or racecourse. Forged and CNC-machined from AL7050 aluminum, then bonded into a hollow arm design, it delivers exceptional stiffness at a remarkably low weight. The modular interface allows riders to quickly swap chainrings, spiders, and spindles, tailoring the setup to different terrains or drivetrain preferences.

Designed with precision chainlines and Q-factors for modern MTB geometry, and available in multiple chainring sizes from 30T to 38T, the KFX crankset is ready for both cross-country racing and aggressive trail riding. With its blend of cutting-edge engineering and race-proven reliability, it’s a lightweight powerhouse built to last.

Details

• Ultralight modular MTB crankset for XC and trail performance
• Forged and CNC-machined AL7050 arms with bonded hollow construction
• Modular design for easy swaps of spiders, spindles, and chainrings
• Compatible with Shimano and SRAM 11–12 speed drivetrains
• 100% CNC AL7075 chainrings for precision and durability
• Item #FSAD12F