Caswynlife Folding Bike Chain Tensioner For Brompton, Outer 1/2/3 & Inner 3 Speed, 10T Guide Wheel, Reinforced Nylon, Quiet Operation, Lightweight 120

Details

• All-in-One Tension Solution: Single chain tensioner supports full range of gearing-inner 3-speed and outer 1/2/3-speed setups-no extra adapters needed.
• LONGLASTING Nylon Body: Reinforced engineering plastic withstands repeated folding, urban commuting stresses, and variable weather exposure.
• 10-Tooth Guidance System: Precisely sized guide wheel promotes consistent chain tension and smoother power transfer on stop-start city rides.
• Weight-Conscious Build: Lightweight 120.5g construction 's emphasis on carryability and quick transitions between transport modes.
• Frame-Fit Precision: 143mm length tailored to 's unique geometry-installs securely without modifying frame or altering fold dimensions.