SL-K ABS chainring 4H


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Shifting performance has helped Full Speed Ahead to become a world leader for high-end chainrings. No one studies the design and manufacturing of each system, and each tooth, as carefully as we do. Our dedication shows in every revolution of the crank, and every perfect shift achieved. To meet or exceed the needs of any drivetrain, Full Speed Ahead has developed sophisticated design, testing and manufacturing protocols. This allows Full Speed Ahead to match your needs as perfectly as our chainrings match a chain. We offer more options, levels, and finishes than our competitors. We use the best materials available, imported from the USA, Europe, or sourced from our qualified vendors in Asia, to guarantee the durability, performance, and appearance will out perform, and outlast the competition. Full Speed Ahead chainrings have powered multiple World, Tour de France, and Olympic champions, and will exceed your expectations.


  • Precision CNC machined AL7075/T6
  • Shifting ramps and stainless steel pins on outer rings
  • Black anodized
  • Laser etched logo


Code Type
371-0014002051 AAA CR ROAD K-FORCE/SL-K/PBOX ABS 4h 110x34T WB282
371-0012003050 CR K-FORCE & SL-K ABS 4H 36T
371-0011005051 CR K-FORCE & SL-K ABS 4H 39T
371-0002004050 CR ROAD SL-K ABS 4h 110x38T (52T) N11 WB321
371-0023005010 CR SL-K ABS 4H 50T
371-0024006010 CR SL-K ABS 4H 52T
371-0022007010 CR SL-K ABS 4H 53T


Type Chainrings
Color Neutral
Series SL-K, K-FORCE
Discipline ROAD
Compatibility SL-K ABS, K-FORCE ABS, Powerbox ABS, SL-K ABS