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 CheckoutSpec= Air shaft Compatible with Shimano and SRAM

Compatible with Shimano and SRAM 7 8 9 10 11 12 speed chains and single-speed style chains

Press-fit end caps allow tool-free maintenance and conversion Rear Axle 12mm Thru x 142mm Cassette Body Type Shimano Micro Spline Color Black Skewer Included No Bearing Type Sealed Cartridge Defined Color Black Spoke Interface J-Bend Hub Drilling 24 Hub/Brake Compatibility Center-Lock Disc

An elastic waistband with a drawcord

Made in the USA Length 209 Flange No Lock On No Shape Round Color Red Grip Material Silicone Defined Color Red Outside Diameter (mm) 32

CeramicSpeed's OSPW Aero system has been developed in close collaboration with one of the world's leading aerodynamicists

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 CheckoutSpec= Air shaft Compatible with Shimano and SRAMEngineered 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