SRAM X5 PG1030 10 Speed Cassette provides silky smooth shifting precision and rugged reliability found normally on cassettes costing much more. Aluminum carrier is gentle on ultralight hubs while reducing overall weight of the cassette. Excellent debris-clearing abilities thanks to it's cross-drilled low gears and wide-spaced spider arms.
Awesome value and so far bombproof !
Not that heavy, just not the lightest for the cross country racer !
But paired with a good X-7 or X-9 rear derauiler it simply is bombproof for the trail or all mountain rider !