Rims: WTB DX18 26'' (ETRTO 559), inner width: 18 mm - Anodized black finish - CNC machined sidewalls - Stainless steel eyelets - Rim wear indicator - Pinned joint - Drilled for Schrader valve - 36 holes Front hub (041812-01-26): Alloy, Sealed, Quick Release, Hollow CrMo axle M9x100mm - Anodized black finish - Adjustable bearings - Quick Release Binders Included Front hub (041810-01-26): Alloy, Sealed, Bolt-On, Solid CrMo axle 3/8'' x 100mm (L:140mm) - Anodized black finish - Adjustable bearings - Flange Nuts included