Proterra Light i23 wheels check all the boxes for a fast and light alloy wheelset. The 23mm inner rim width provides the optimal tire profile for adventure road and gravel tires ranging from 30-42mm. Its open-cavity profile features thin, weight-optimized walls that provide the perfect blend of stiffness, resilience and efficiency. Subdued graphics on a bead blast finish ensure these wheels won't clash with the colors of your dream bike. We didn't skimp on hubs either. Top-tier EZO bearings, a swift 6-pawl freehub and 5 degrees of engagement provide the look, sound and feel you expect of a high-end tubeless wheelset.