due to covid restrictions product availability may be delayed by up to 30 days

SKU: RMSFSACRASLK_4215761 Categories: , , ,


FSA’s brand new range of high quality mountain bike cranksets are designed according to a fully-modular system. This means that any rider or mechanic can easily, quickly, and safely swap out the spider, spindles, and chainrings from one set to another. It also features a built-in chain-line adjustment system. This allows for Boost and traditional non-Boost configurations with the same cranksets. Essentially, one crankset works across any bike. The Modular system allows for the perfect combination of components, tailoring exact specification requirements to the individual rider and the type of terrain they’re facing, and for when the time comes to renew and upgrade components. Compatibility with all current and future standards mean that the flexibility – and value – of FSA’s modular cranks is unparalleled and the benefits can be shared by all riders, future-proofing your ride.


  • Convertible spider design for different chainring and chainline configurations
  • Hollow carbon composite arms with UD finish
  • 30mm forged AL7050 BB392EVO spindle
  • AL7075 100% CNC chainrings
  • Thick-Thin tooth design for maximum chain engagement
  • Optimized for new 11 speed system


Type Cranksets
Technology BB392EVO, DirectMount, Megatooth, Modular, No
Discipline MTB
Series SL-K
Color Neutral
Weight (gr) 517
Compatibility BB392
Bolt Circle Diameter (BCD) DIRECT MOUNT
Crankset Type Single
Drivetrain Compatibility Shimano 9-11S, Shimano 12S, Sram 10S, Sram XD 11/12S, Shimano 9-11S, Sram 10S, Sram XD 11/12S
Material Carbon

Additional information


– You can cancel the purchase at any time, just click on "cancel" and you will not be charged anything at the deadline. – The total amount will be put on hold on your credit card but you will be charged the lowest price reached by the offer when it expires.


30T, 32T, 34T

Crank Arm Lenght

170mm V17, 175mm V17


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