The Tange Seiki Terious ZST2 is a durable, semi-integrated (Zero Stack) threadless headset designed for 1-1/8" steerer tubes. It is widely recognized for its "Fully Sealed Mechanism," which protects the internal components from dirt and moisture, making it a reliable choice for daily commuting or mountain biking.

Features

• Zero Stack (ZS) System: This design places the bearing cups inside the head tube, allowing for a lower front end and increased front-end stiffness compared to traditional external headsets.

• Durability: Constructed from high-tension steel rather than alloy, it is built to withstand heavy use and high-stress riding.

• Fully Sealed Mechanism: Even though it uses ball retainers rather than cartridge bearings, it features a seal system (including a pre-assembled seal ring and lower seal ring) to prolong the life of the grease and bearings.

• Easy Installation: Features a Nylon/Plastic compression ring for simple adjustment and fitment.

Specifications