11T 219H sprocket with 12 mm bore (hardened)Note: for X1 Stealth drive in pressfit version with freewheel 2.0, a special sprocket version is required to maintain correct chainline.

Features and specifications

• Drive compatibility: X1 Pro Gen.2, X1 Pro Gen.3, X1 Stealth (Gen.1), X1 Stealth Gen.3