Reserve Wheels Reserve 31 DH Wheelset - 27.5" 20 x 110/12 x 157 6-Bolt HG BLK Chris KingReserve Wheels Reserve 31 DH Wheelset 27. 5" 20 x 110 12 x 157 6 Bolt HG Black Chris King. Lets face it modern downhill tracks are not for the faint of heart. From the moment you drop in its a hari cari mix of boulders roots bumps and jumps awaiting you and literally the only thing keeping you upright and connecting you to the ground is your wheels. Its serious business and the abuse of a day riding DH is no joke but the Reserve 31 DH wheels have your