Folding Bike Chain Tensioner for Brompton, Outer 1/2/3 & Inner 3 Speed Compatible, 10T Guide Wheel Rear Derailleur, Reinforced Nylon Quiet Design, Lig

Details

• Complete Compatibility Set: Designed specifically for folding bikes, supports inner 3-speed and outer 1/2/3-speed drivetrains to match original equipment .
• Reinforced Nylon Construction: Built with LONGLASTING engineering plastic that resists wear, reduces chain friction noise, and maintains consistent for tension over extended use.
• 10T Precision Guide Wheel: Features a 10-tooth guide wheel for smooth chain tracking, minimized derailment risk, and responsive gear engagement.
• Ultra-Lightweight Design: Weighs just 120.5g-adds negligible mass to your while preserving compact foldability and ride agility.
• Frame-Specific Fit: Tailored geometry insures secure mounting on frames without for modification; always refer to the MANUFACTURER'S SIZE CHART before ordering.