The DCTech BB86-92 crankset for Sram Dub is designed for cyclists who demand the best in performance and durability at the best price, whether they´re riding rough mountain trails or cruising smooth roads.Thanks to our Dual Cup Technology (DC Tech) and premium steel bearings, our bottom bracket will give you the smoothest ride.For wide Sram Dub cranks, you must purchase a Dub wide adapter kit.For proper compatibility, mountain cranks should always be mounted on mountain frames and road cranks on road frames.Mountain crankset specifications:Crankset diameter:29 mm (Sram Dub).Frame width:86.5 mm to 92 mm.(Compatible with mountain and road bikes).Frame diameter:41 mm.Weight:86 grams.DCTech BB86-92 for Sram Dub Features.Double Cup Technology.Two aluminum cups that perfectly align the bearings on both sides, creating a solid center seal that eliminates any noise or movement.This bottom bracket uses Chronium steel bearings (ABEC5 / P5 - 2RS).The cups of our bottom brackets are made of 7075 aluminum, a high-strength aerospace-grade aluminum to which we apply a T6 treatment.This makes the material harder and more durable, ensuring our cups maintain peak performance over time.Fully Sealed.Axial seals on the bearings and fully sealed on all surfaces.This bottom bracket is compatible with the following spare parts:30407 Steel Bearing.30407 Bearing Kit for Sram Dub.30mm to Sram Dub Adapters