SRAM 900 6 Bolt Disc Rear Hub - Shimano HG Splined - Black - QR-12x142mm - 6 Bolt - Rear - 24 Hole Out of Stock A1 levers have a silver

A1 levers have a silver knob and A2 have black knobs

and coated shaft and tube surfaces

these are designed to hold on to the chain while saving weight over a normal spider and ring combination

Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment

SRAM 900 6 Bolt Disc Rear Hub - Shimano HG Splined - Black - QR-12x142mm - 6 Bolt - Rear - 24 Hole Out of Stock A1 levers have a silverSram's new 900 level hubs bring all the technology from their class leading X0 hubs down to a lower price point. Features: Double Time Engagement 52 points of engagement via 4 pawls this equates to the freehub engaging every 6. 9 degrees. Fast! Seeker: Very clever the hub flanges are angled to point at the rim. This ensures the spokes are never getting extra stress put on them by rubbing on the flange. Side Swap: The end caps are the same on both