Specification: MATERIAL: AL6061(Body)+AL7075(Axle) Spoke holes: 32 Gauge: 14 Sealed bearings: 4Pcs OLD: 141mm Endcaps: 5mm QR Brake interface: Disc IS (6-Bolt) Freehub body: 6pawls & 72HD system. For Sram 8-10speed &Shimano MTB 8-11S. And Shimano MS 12S & SRAM XD 11S 12S available(requires optional cassette tape and end cap). Weight: 299g Color: Black