CHOHO Z13 Hollow Flattop 13‑Speed Chain

Product Overview CHOHO Z13 hollow‑top flattop built for modern 12‑speed and 13‑speed road / gravel drivetrains. Uses automotive‑grade material and heat‑treatment processes for strength and wear resistance. Key Features • Tensile strength exceeding 900kgf • Automotive‑engine‑derived material and heat‑treatment for thin‑plate strength • Chromizing‑vanadium surface treatment for improved wear resistance • One‑piece stamping, narrow plate design to reduce friction interference • Mirror‑finished chamfers for quieter running and reduced friction • Low‑noise shifting performance Specifications • Model: CHOHO Z13 • Speed compatibility: 12‑speed / 13‑speed • Link count: 126 links • Weight: approx 250g • Dimension: 1/2" × 10/127" • Colour: Silver • Master link included • Compatible with: 12‑13 speed road / gravel groupsets What’s Included • 1 x CHOHO Z13 116‑link chain • 1 x master connecting link