The SHIMANO RX880 carbon wheels are 64 grams per pair lighter than their predecessors and feature the same flat rim height of 32 mm for quicker acceleration and more agile climbing properties. The low profile also provides better control in crosswinds, and these tubeless-ready wheels have a modern inner width of 25 mm, making them suitable for tires up to 50 mm wide. The RX880 features a DIRECT ENGAGEMENT freehub design derived from the DURA-ACE wheels for additional ride stiffness.