FSA SL-K Crankset
FSA

FSA SL-K Crankset

4.5

Best lightweight upgrade for dedicated road cyclists seeking performance.

This crankset balances stiffness and weight, making it an ideal upgrade for road cyclists seeking efficient power transfer. The hollow carbon construction and precision-machined chainrings ensure reliable performance during sprints and long climbs alike.

$384.78

In stock

at

Backcountry

Crank Arm Length Mm
Drivetrain Speed Compatibility 11-Speed
Bottom Bracket Interface Type 386EVO
Number Of Chainrings 2

Who it's for

  • Competitive cyclists seeking lightweight performance without sacrificing pedaling efficiency
  • Riders who want a future-proof component for various frame types
  • Road racers demanding crisp and dependable front derailleur performance

Who should skip it

  • Home mechanics who prefer universal parts and easy maintenance
  • Aesthetic-conscious riders who want their gear to look new longer
  • Budget-focused enthusiasts looking for the best value-to-performance ratio

Performance breakdown

Power Transfer Efficiency

Internal alloy spine ensures minimal flex during high-wattage sprint efforts.

Excellent

Weight Optimization

Hollow carbon construction keeps rotational mass impressively low for climbing.

Excellent

Shifting Precision

CNC-machined chainrings deliver crisp, reliable gear changes under heavy load.

Excellent

Frame Compatibility

The 386EVO interface adapts seamlessly to almost any modern road frame.

Excellent

Pedaling Ergonomics

Road-tuned Q-factor promotes a natural, efficient stance for long rides.

Excellent

Structural Durability

Reinforced carbon layup balances race-day lightness with long-term structural integrity.

Excellent

Key Specs

Arm Material

Hollow unidirectional carbon, alloy spine

Arm Lengths

165mm, 170mm, 172.5mm, 175mm

Chainring Sizes

50/34t, 52/36t, 53/39t

Bolt Circle Diameter

110mm

Number of Chainrings

2

Bottom Bracket Interface Type

386EVO

Spindle Diameter

30mm

Q Factor

147mm

Chainline

44mm

Weight

600g

Know before you buy

Still have a question?

Ask Metto anything about the FSA SL-K Crankset before you decide.

FSA SL-K Crankset

Ready to buy?

Backcountry
Backcountry
In stock
$384.78
Buy
Level Nine Sports
Level Nine Sports
In stock
$384.78
Buy