Description 70g front road hub with ultra wide flange spacing, available in 20, 24, 28, or 32 holes. QR included. 202g rear road hub with a high/low flange design for optimal weight savings, available in 28 or 32 holes, with a Shimano 8/9/10, 11, or Campy 11 speed freehub. QR included. BWW Pure Ultra Road Hub Set Specs Ultra X70 / R210 Front Wheel Rear Wheel Wheel Weights (approx) Hub Info BWW R-X70 BWW SL R-210 Hub Weight 70g 202g 70g F, 202g R Hub Shell Aluminum Alloy Axle Info QR 9mm x 100mm OLD QR 10mm x 130mm OLD Hole Ct 20, 24, 28, or 32H 28 or 32H DriveS PCD 31 49 DS Ctr to Flange 41.5 16.5 Non-DriveS PCD 31 38 NDS Ctr to Flange 41.5 37.5 Axle Material Aluminum Alloy Bearings Sealed Cartridge Taiwan EZO Bearings Bearing Size TBA TBA Freehub Shimano HG Shimano/SRAM Road 8/9/10 speed Freehub Shimano Road 11 Shimano/SRAM Road 11 speed FH Campagnolo Campagnolo 8/9/10/11 speed FH Material Aluminum Alloy All options include QR levers.
