Shimano Deore FH-M618/M615/M525A/T610 Rear HubsFeatures:Double contact sealing Super polished bearing races for low friction rollingSpecifications:Defined Color: Black Color: Black Weight: 512 g Hub Drilling: 32Spoke Interface: J-Bend Flange Diameter, Right: 61Flange Diameter, Left: 61Hub/Brake Compatibility: 6-Bolt Disc Center to Flange, Right: 20.5Center to Flange, Left: 33.5Skewer Included: Yes Rear Axle: QR x 135mm Bearing Type: Loose Ball Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed Cassette Body Type_1: Shimano/SRAM 8, 9, 10 Speed