GOLDIX | GOLDIX XD Structure Mountain Bike Cassette 12 Speed 9-50T/52T Wide Range MTB Freewheel 12S Compatible with SRAM GX EAGLE XX1 X

SUNSHINE XD Structure Bicycle Cassette12 Speed 9T-50T Mountain Bike Freewheel for Sram XD freehub GX EAGLE XX1 X01 XDColor : BlackMaterial : High strength steel (9-42T) and 7075 Alloy(50T)XD-12S-50T  Tooth Distribution Range: 9T-11-13-15-18-21-24-28-32-36-42-50TXD-12S-50T  Weight : ≈ 535g±10XD-12S-52T  Tooth Distribution Range: 10T-11-13-15-18-21-24-28-32-36-42-52TXD-12S-52T  Weight : ≈ 541g±10gSUNSHINE Cassette offers a larger range, We provide the most practical and cost-effective products on the market. , our 12speed 9-50T L cassette has an improved structure for smoother shifting.Please note:The XD freehub body is designed for mountain bikes, while the XDR freehub body is designed for road bikes. They are not interchangeable. The spline length of the XDR freehub body is 7.2mm, whereas the spline length of the XD freehub body is 5.4mm — a difference of 1.8mm. Therefore, do not install an XD-type cassette onto an XDR freehub body, as it will result in a loose fit even after installation. We will not accept any disputes arising from this issue.