- Durable aluminum alloy construction for wear resistance and corrosion resistance, providing a sturdy and strong structure and a long service life for your bicycle chain - Excellent craftsmanship with an anodized color and lightweight design, using just one screw; resists oxidation while maintaining a durable and vibrant appearance; features split zip double holes - Prevent frame scratches and improve reliability on the move; practical design reduces frame damage, chain tangling, and chain derailment; adjustable tension suits single speed systems - Quick setup and easy installation that does not require complicated tools; get your bike running promptly and you can easily adjust the chain for a smoother ride - Material and performance: aluminum alloy for durability; anodized finish for color fastness and corrosion resistance; single screw mechanism for simple operation; compatible with single speed systems - Use scenarios - Urban commuter bike using a single speed setup, needing reliable chain tension and frame protection during daily riding - Fixed-gear or track-oriented builds that require straightforward tension adjustments without complex tools - DIY bike upgrades or replacements when converting a multi-speed frame to a single speed, or replacing a worn tensioner for consistent performance - Compatibility and features at a glance - Function: chain tensioning for single speed systems - Compatibility: designed for single speed configurations - Size: designed to fit common single speed chains (no size specification provided) - Material: wear-resistant and corrosion-resistant aluminum alloy - Performance: durable, lightweight, easy to install, and maintains chain alignment while protecting the frame