The number to count on—240 with Ratchet EXP. The new 240 is developed for riders with the most extreme ambitions. The latest version of the hub is equipped with the Ratchet EXP system to maximize reliability. The increased bearing distance increases bearing lifetime, the straight spring provides more direct engagement (which reduces wear), and a smaller number of parts not only makes maintenance easier, but also reduces weight.
Direct power transmission in every riding situation—240 with Ratchet EXP. With the latest generation of the 240 hub, the strengths have been further enhanced. The latest Ratchet EXP freehub system increases the bearing lifetime thanks to the increased bearing distance. The new version of the end caps simplifies tool-free disassembly and makes maintenance easier. The hollow-machined ratchets transfer your energy directly into acceleration thanks to the 36 teeth.
SRAM's 506 hub borrows technology from its more expensive brethren to bring you a solid hub at a great price. An aluminum hubshell with hi/lo flanges provide no-nonsense durability and even spoke tension. Dependable cup and cone bearings with polished races roll smooth for the long haul and a strong, steel quick-release axle holds up under pressure.
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