Sturdy 25 Pcs Chain Tensioner Fastening Bolt Bicycle Adjustment

Universal Usage Guidelines: Install by aligning with the horizontal rear fork, securing the fixing points firmly, then adjusting the tension knob to desired tightness; store in a dry, cool place when not in use; clean with a dry cloth to remove surface debris without disassemblyMaterial: Metal Size: As shown in the pictureQuantity: 25 pieces Package contents: 25 bicycle chain adjustment bolts Features and specifications Used as a fastening adjustment bolt for bicycle chains;- Made of steel, sturdy and durable in use;- Equipped with built-in sealing washer nuts to enhance fastening effect;Notice:1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Picture just as a reference.the actual delivered goods shall prevail2. Please allow 0-1inch deviation exists due to the different measuring way

• Precise Tension Control: Effortlessly maintains optimal bicycle chain tightness, preventing chain slippage from looseness or jamming from over-tightening to ensure smooth riding performance across daily commutes and casual rides
• Wide Vehicle Compatibility: Fits most single-speed bicycle types including fixed gear, folding bikes, and more, specifically designed for horizontal rear fork frames without the need for model-specific adjustments or additional parts
• Tool-Free Easy Installation: Compact and lightweight design meets bicycle space requirements, enabling quick and hassle-free setup even for beginners—no complex tools or technical skills required to complete the process
• Sturdy Structural Design: Robust construction delivers reliable resistance to daily wear and tear, ensuring stable performance during long-term use and maintaining consistent tension control over time
• Single-Speed Adjustable Function: Flexible tension adjustment for the chain around the sprocket, easily resolving common issues like loose chains and abnormal operation noise without professional maintenance