The BMC Timemachine 01 Disc Headset Box is the complete integrated headset assembly designed for the Timemachine 01 Disc frames. It houses the sealed bearings and hardware in a precision-machined interface that maintains the bike’s aerodynamic profile and ensures smooth steering performance. The unit is sold as a ready-to-install box that replaces the entire headset stack without additional parts.

• Compatibility: BMC Timemachine 01 Disc frames
• SKU: 301646
• Included components: integrated headset box assembly with sealed upper and lower bearings, crown race, split ring, headset bolt, and socket bolt
• Material: anodized aluminum housing with steel bearings and stainless-steel hardware
• Weight: approximately 300 g for complete box assembly
• Installation: installs directly into frame head tube—no separate bearing cups required