Dolvitrny Alloy Chain Tensioner Arm for Brompton PLine Rear Derailleur, 5 6 7 Speed Guide Wheel with Nylon -Jockey Wheel Pulley, Folding Bike Gear Adj

Details

• Complete Kit Includes 1 Tension Arm Chain Tensioner: Everything needed for immediate setup-just one precision-engineered chain tensioner ready to install on compatible 5/6/7 speed derailleur systems.
• Lightweight Aluminum Alloy Build: Crafted from LONGLASTING aluminum alloy to reduce weight while maintaining structural integrity during aggressive riding and long-distance cycling.
• 8-Tooth Nylon Guide Wheel: Features a smooth-rolling 8T nylon guide wheel that cuts chain slap, lowers operational noise, and supports consistent chain alignment varied terrain.
• Optimized for 4-7 Speed Derailleur Systems: Designed to work seamlessly with common rear derailleurs on vintage and modern 4-7 speed bikes, including cruisers, commuters, and single-speed conversions.
• Compact 16.3 x 7.65 cm Profile: Sleek low-profile design fits tight frame clearances without interference-perfect for riders seeking clean aesthetics and reliable chain management. Please refer to the product's SPECIFIC SIZE CHART before ordering.