e*spec Race Carbon Cranks are hand-crafted using e*thirteen's patented crank layout and molding technique. With alloy self-extractors, impact reinforcements, and vinyl protectors, they combine robust durability with a sleek profile and minimized weight, delivering both style and strength. e*spec Race Carbon Cranks are engineered to the same test standards used for World Cup DH components. Compatible Bosch, Brose, Fazua Ride50, and TQ HPR50 systems. Key Features:Chainring: e*spec Direct Mount Chainring available.Colour: Stealth Black w/Protective VinylCompatibility: Bosch CX Gen4 or Brose S Mag motor systemsFeatures: World Cup proven layup. Slim Q factor, overall profile, and volume. 8mm self-extractor in each arm.Included: Crankset, APS Adjuster, Installation Tools, Crank Boots (x2), Sticker, User ManualLength: 165mm Material: World-Cup DH-rated layup and construction, compacted carbon fiber, with additional 3k added to front and rear faces of crank for impact resistanceSelf Extracto