Ritchey's SuperLogic Zero Press Fit Headset is compatible with head tubes that accept internal headset cups. It's a sleek internal headset with Ritchey's proven angular-contact bearings, a special Ritchey grease and aluminum cups for super light weight. For smoothness and durability, the bearings are Ti-coated ceramic hybrids that carry a lifetime guarantee.
Stack Height: 12mm
Fits 1 1/8-inch threadless forks
Weight: 79 grams