BOX Four Prime 9 Chain 8-Speed Narrow-Wide, Durable Steel, 116 Links Compatibility_Trek Rail coated finish for increased life

coated finish for increased life span in tough conditions

Must use with specific OS20 frames and rims

Its inner hole is precisely sized to fit standard 1/2" threaded rods-making it versatile and compatible with any press featuring a 1/2" diameter rod

- Use: Take 2 capsules before meals

Constructed with flat seam technology

BOX Four Prime 9 Chain 8-Speed Narrow-Wide, Durable Steel, 116 Links Compatibility_Trek Rail coated finish for increased lifeUpgrade your bike's drivetrain with the BOX Four Prime 9 Chain (8 Speed) 116 Links, Natural Gray, engineered for durability, precision, and seamless compatibility. Crafted with advanced Prime 9 Technology, this chain offers a wide gear range without added complexity, making it an ideal choice for versatile cycling disciplines including mountain biking, commuter riding, and adventure touring. ### Materials & Construction Made from hardened solid pins