Full Speed Ahead SL-K 2x Modular Carbon Crankset - 172.5mm For Shimano HG+ 12-Speed 50/40t DM/90 BCD 30mm 386EVO Spindle BLK

Engineered with advanced materials and fully in-house manufacturing the SL-K combines durability innovation and style making it the ideal choice for both professional cyclists and passionate enthusiasts looking for the best equipment. At the heart of the SL-K Light Direct Mount lies FSA’s Hollow technology which creates ultra-light hollow carbon crank arms. This design offers the perfect balance of lightweight construction and exceptional stiffness ensuring top performance and long-term durability. The sleek UD carbon finish enhances its aesthetics making it a visually striking and technically superior choice for demanding cyclists. The revolutionary MEGATORQ technology from FSA redefines the standard for chainring performance ensuring an unmatched combination of chain retention smooth shifting and durability. This innovation is the result of meticulous design and collaboration with professional athletes tested in extreme conditions to meet the highest expectations. The advanced tooth profile design creates an optimized contact point between the chain and chainring reducing chain drops even under maximum load. The updated derailment angle on the non-contact side further enhances shifting efficiency allowing for faster more precise gear changes without compromising retention strength.

FSA's Hollow Technology creates ultra-light hollow carbon crank arms design that offers the perfect balance of lightweight construction and exceptional stiffness ensuring top performance and long-term durability

UD carbon finish enhances its aesthetics making it a visually striking and technically superior choice for demanding cyclists

Cold forged CNC machined 7075 aluminum chainrings with FSA's MEGATORQ technology redefine the standard for chainring performance ensuring an unmatched combination of chain retention smooth shifting and durability

Updated derailment angle on the non-contact side further enhances shifting efficiency allowing for faster more precise gear changes without compromising retention strength

Premium 30mm CNC machined 7050 BB386EVO spindle

174mm Q-Factor / 44mm Chainline

Rings	50/40
Number of Chainrings	Double
Drivetrain Speeds	12
Chainring BCD	90
Chainline/Hub Compatibility	135/142 Road Disc Hubs > 415 mm Chainstay
Color	Black
Crank Length (mm)	172.5
Crank Intended Use	Gravel
Weight	650
BB Included	No
Pedal Spindle	9/16"
Spindle Interface Type	386 EVO
Defined Color	Black
Crank Length	172.5Mm
Chainring Size	50/40T