Made for spinning up fast and staying quick in rough terrain the Reserve 30 SL i9 Hydra 29in Boost Wheelset gets enduro rated marks at a trail-ready weight. These wheels come fully stoked with a lifetime warranty on the rims and hubs which allows endless trail shredding. Hydra hubs are equipped with superb . 52-degree engagement to quickly get back on the power out of every corner. We ride these wheels day in and day out on our favorite trail systems and aren't afraid to take them on big cross-country trips to rim-shattering terrain.