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The SRAM DUB Road bottom bracket with a 73 mm shell width allows installation in a Cannondale frame with a PF30 receiver and a wider end section. It is asymmetrical and has been specially developed for Cannondale bikes. The special spacers create space for the pedal spindle, thereby widening the chainline. This positions the electronically controlled AXS front derailleurs further outward in 2x12 speed system setups, enabling the use of wider tires, e.g., for gravel applications. The DUB technology offers an ideal balance between large bearings and spindle stiffness.
DUB Technology: The spindle and bottom bracket unit are the core of DUB technology. Stiffness and durability are combined. SRAM has taken one step further, making everything easier and better. The system-based approach through the integration of the crankset, spindle, and bottom bracket is crucial for optimal drivetrain performance.
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