XDR freehub can be compatible with XD Cassette after installing 1.8mm gasket, but there are many brands of XD Cassette, and the data of each brand is slightly different, so we provide 2 gaskets, 0.8mm and 1.8mm. Please select the thickness of the gasket according to your own Cassette data. Conversion kit to change the DT Ratchet System rotor of 180, 240, 350, EXP hubs to XD / XDR 12-speed rotor standard. Version for Thru Axle 12x142/148 mm. To make DT Ratchet System hubs XD /XDR compatible, the freehub body and the end cap needs to be replaced by the new MTB 12-speed freehub body and end cap. Made of high-strength 7075 aluminum alloy, 3D CNC process The freehub is brand-new designed and treated with new hollow out design. It reduce the weight to 43g on the basis of maintaining the same strength

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