- Material: Constructed from CNC aviation aluminum alloy, this chain tensioner is highly durable and rustproof, ensuring long-lasting performance. - Compatibility: Designed as a direct replacement for the original BROMPTON 1-3 speed chain tensioner, this part seamlessly fits into your existing setup. - Customization: To utilize this tensioner with a 6-speed system, you will need to replace the original chain pusher with a custom option. In its default configuration, it functions effectively as a 1-3 speed tensioner. - Dimensions: Measuring 18x13x6 cm (7.1x5.1x2.4 inches) and weighing approximately 128 grams, it is compact and lightweight, making it easy to handle and install. Use Scenarios: - Ideal for BROMPTON owners looking to enhance the performance of their 1-3 speed bikes, ensuring smooth and reliable gear shifting. - A practical choice for those seeking to upgrade their bike's components without the hassle of a complete overhaul. - Perfect for cyclists who require a robust and dependable tensioner that withstands outdoor conditions, extending the life of their drivetrain. This chain tensioner stands out for its high-quality material, precise engineering, and compatibility with BROMPTON bikes, making it a reliable choice for enhancing your cycling experience.