Full Speed Ahead SL-K 2x Modular Carbon Crankset – 172.5mm For Shimano HG+ 12-Speed 53/39t DM/90 BCD 30mm 386EVO Spindle Black. 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 FSAs 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.
FSAs 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 FSAs 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 53/39Number of Chainrings DoubleDrivetrain Speeds 12Chainring BCD Direct Mount FSAChainring BCD 90Chainline/Hub Compatibility 130 HubsChainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm ChainstayChainline/Hub Compatibility 135/142 Road Disc Hubs > 415 mm ChainstayColor BlackCrank Length (mm) 172.5Crank Intended Use RoadCrank Intended Use GravelWeight 650BB Included NoPedal Spindle 9/16″Spindle Interface Type 386 EVODefined Color Black
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