The FSA Comet crank is a stiff, modular 1x crankset with a 24mm alloy spindle, delivering strong power transfer and solid value. Forged 6061 aluminum arms balance strength and durability while weight-saving channeling at the back keeps the build efficient. A no-pinch bolt design on the left crankarm makes installation easier and provides a clean look. With a modular configuration, the Comet is compatible with Boost 148 frames and multiple chainline setups.
Convertible spider design for different chainring and chainline configurations
Thick-thin tooth profile for secure chain engagement
Solid forged AL6061 crank arms
24mm chromoly spindle
Direct mount steel chainring
1x modular setup with 30T MegaTooth chainring
Specifications & Identifiers
Bottom Bracket Included
No
Bottom Bracket Shell Width (mm)
73
Chain Compatibility
10-Speed, 11-Speed, 12-Speed
Chainline/Hub Compatibility
141/148 Boost Hubs
Chainring BCD
Direct Mount - FSA
Chainring Setup
Mountain Single / 1x
Chainrings Included
Yes
Color
Black
Crank Arm Length
165mm, 170mm
Crankset Style
2-Piece
Defined Color
Black
Designed for ebike
No
Frame Interface
BB92, English Threaded
Intended Use
Mountain
Number of Chainrings
Chain Retaining Single
Number of Speeds
10-Speed, 11-Speed, 12-Speed
Pedal Spindle
9/16"
Rings
30
Spindle Interface Type
FSA MegaExo
Spindle Length (mm)
Integrated Spindle
Black - 165mm UPC
840031066701
Black - 165mm MPN
313-0337422050
Black - 170mm UPC
840031066718
Black - 170mm MPN
313-0337423050
Tree Fort ID:
333222470696
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