Sram 900 hubs are ready for any challenge, from finish lines to epic adventures. These hubs feature durable drive mechanisms and smooth bearings.
The smooth and durable Double Time drive mechanism ensures rapid 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 suitable choice for any disk-equipped road, gravel, cyclocross, cross country, trail, or enduro bike.
The XD Driver Body is a cassette driver body design that allows the use of a 10-tooth small cog and provides an improved interface with the cassette. Boost is the standard wheel and drivetrain specification that opens the opportunity for improved frame geometry with shorter chain stays, wider and stiffer suspension pivots, wider range of chainring options, as well as more clearance for bigger tires and wider, stiffer wheels. Torque Caps make the bond between hub and fork dropout stronger, with an increased surface area connecting the two. This creates a stronger, stiffer interface, giving you a more responsive front wheel and more control. Double Time is a straight-aligned, 4-pawl design that turns the 26-tooth ratchet ring into 52 points of contact, resulting in smooth 6.9-degree engagement without reducing tooth size or offsetting internal geometry. Seeker flanges are 3D forged and machined for lightweight strength, angled towards the rim to allow spokes to be fully in-line when tensioned, reducing spoke head breakage. Side Swap allows for threadless side caps to be installed and replaced by hand, with no tools necessary. Speedball bearings are precision machined to fit the bearing race exactly, eliminating the need for play adjustment.
Features:
- Fully convertible with tool-free end caps
- XD Driver Body
- Boost specification
- Torque Caps
- Double Time drive mechanism
- Seeker flanges
- Side Swap tool-free axle caps
- Speedball bearings