Whether the goal is a finish line, epic adventure or simply getting back home again, our new 900 hubs are ready for the challenge. On the inside, our smooth and durable DOUBLE TIME™ drive mechanism ensures rapid lightning-fast engagement for quick and confident pedal responsiveness. SPEEDBALL™ bearings provide smooth, long-lasting rotation performance. Multiple spoke-count and cassette-capability options, as well as interchangeable end caps make the 900 hubs a perfect choice for any disc-equipped road, gravel, cyclocross, cross country, trail, or enduro bike.Features:- DOUBLE TIME™ mechanism offers smooth,quick and durable engagement- Versatile driver body can accept ROAD or MTB drivetrain, full spline or XD™ cassettes- BOOST™ variants- 24–28 or 32 spoke holes- Fully convertible with tool free end capsSpecifications:- Orientation: Rear- Axle type: Conversion Caps included- Spoke holes: 28- Brake compatibility: Disc (6-bolt)- Driver body type: SRAM/Shimano MTB and Road- Over Locknut Material: n/a- Driver Mechanism: Double Time - Four Pawl- Axle material: Tapered aluminum- Axle - Convertible: Yes- Driver body material: Aluminum- Hub shell: Aluminum - Seeker angled flanges - Oversized body- OLD: 135mm- Bearings: Cartridge - Carbon Steel