Hope Pro 2 QR Front Disc Hub: Hope's new Pro II hubs are the next evolution in disc hub designs for lightweight bikes, but they've still got the durability to handle aggressive use. Available axle conversion kits (sold separately) let you convert your Pro II front hub to 20mm thru axle, or your rear Pro II to 10mm or 12mm axle. The most amazing part? The rear hub is almost a full ounce lighter than a Chris King ISO disc hub!
Each hub features high-quality sealed cartridge bearings and a 6-bolt, ISO disc rotor mount. Rear hub uses a Shimano 8/9 speed compatible cassette body.