Lower headset. Full complement stainless steel angular contact cartridge bearings packed with Ritchey high-webbing grease. Sealed cartridge bearings. Pressfit. Material: Alloy. ZS49/33. 55/49.
- Bearing: sealed cartridge
- Material: CroMo
- Lower Fit (S.H.I.S.): ZS49/33
- Lower HT OD/ID: 55/49
- Bearing: Ti coated, sealed Cartidge
- Weight: 40-52g
