ZTTO 9/10/11/12 Speed Full-Hollow Bike Chain - 116/126 Links Lightweight Durable Steel Bicycle Chain with Connecting Link for Mountain Bike and Road Bike (Gold-12s)

Mass Compatibility One chain fits all. This high-performance bike chain is designed to be compatible with 9 to 12-speed mountain and road bike drivetrains. Whether you're riding with an 9-speed setup or a 12-speed performance drivetrain, this chain delivers smooth shifting and reliable performance. Comes equipped with a reusable quick-link for easy installation and maintenance. Lightweight and Accurate Available in different lengths tailored for each gear range—116 links for 9/10/11-speed and 126 links for 12-speed. Despite its strength, this chain is lightweight, with weights ranging from 239g to 274g (excluding accessories and packaging). Please allow for minor variations due to manual measurement. High-Quality Steel Construction Crafted from premium steel with a special anti-corrosion coating, this chain offers excellent durability and longevity. The hardened construction helps it resist stretch and wear, making it ideal for frequent riders who demand reliability over long distances. Stretch-Proof Durability Built to resist chain stretch, this component maintains its shape and function longer under pressure and heavy use. A stretch-resistant chain extends drivetrain life and reduces the need for frequent replacements, giving you better value and reliability over time. Smoother, Quieter Shifting With enhanced inner and outer plate designs, this chain improves contact with rear sprockets, resulting in smoother and quieter gear changes. The advanced surface treatment allows the plates to pivot seamlessly across cogs and chainrings, minimizing friction and increasing efficiency during rides.

• 【Lightweight and Full-Hollow Design】 Weighing between 239g and 274g depending on the speed configuration, this chain offers a great balance of strength and weight. Available in 116 or 126 links to ensure compatibility with your specific gear system without unnecessary excess. The refined hollow design reduces weight significantly without sacrificing strength. It’s ideal for performance riders who want to reduce drivetrain load and enhance climbing and acceleration efficiency.
• 【Durable Steel Material with Protective Coating】 The chain is built from high-grade steel and treated with a special anti-corrosive coating that protects against rust and environmental wear. This ensures a longer service life, even under rough terrain and wet conditions.
• 【Smooth and Quiet Gear Shifting】 Thanks to its optimized inner and outer plate design, the chain moves effortlessly across sprockets, providing seamless and near-silent shifting. It improves overall drivetrain efficiency while reducing wear on cogs and chainrings.
• 【Stretch-Proof Design for Extended Use】 Reinforced to resist chain stretch, it maintains its performance over time and helps prolong the life of your drivetrain. This feature is particularly beneficial for riders who log heavy mileage or frequently tackle climbs.
• 【Mass Compatibility】 Compatible with 9 to 12-speed drivetrains, this chain is suitable for a wide range of mountain and road bikes. Whether you're upgrading your existing setup or replacing a worn chain, this model fits most gear systems and includes a reusable connecting link for tool-free assembly.