Contact us

FSA Bosch Gen4 KFX crank arms CK-9011/IS

Add to basket

Seen this cheaper?


    The new KFX range brings a new selection of lightweight and stiff components to e-mountain bikes.

    Revolutionary manufacturing process
    Each KFX crank arm starts out as two separate forged blanks. Then precision CNC machined into two pieces, the hollowed-out halves feature a series of three main ridges & grooves down the outside of each arm that form a tightly interlocking single piece.

    The KFX superlight aluminum E-MTB crankset is created through an innovative manufacturing process that dramatically reduces weight while increasing stiffness. The hollow construction begins with forging, then precision CNC machining, and finally culminating with advanced bonding technology. The blend of strength and stiffness gives a performance and lightweight that is an ideal option for riders seeking a professional level, top of the line, crankset.

    • Forged and precision CNC machining with advanced bonding technology
    • Manufacturing process dramatically reduces weight while increasing stiffness
    • Length: 160, 165, 170, 175mm
    • ISIS Drive
    • Compatible with: Bosch Gen4, Yamaha, Fazua
    • Weight: 350 grams

    • Bosch Gen4: 173mm
    • Yamaha: 164mm
    • Fazua: 171mm
  • Rate this product

    Rate this product

    Unfortunately, there isn't any review yet. Be the first one and share your experiences with thousands of other riders! 😀
    • 1 Set Crankarms
  • Show all items from FSA
on order (delivery date unknown)

on order (delivery date unknown)

ready for sending in 1-2 business days

on order (delivery date unknown)