Single Speed Bike Chain Tensioner And Guide With Derailleur Hanger, Premium Aluminum Alloy Chain Stabilizer For Folding Bikes, MTB And Road Conversions, 10mm Rear Axle, 4.5mm To 5mm Width, Black
✔️ 1 x tensioner included; fits 10mm rear axle; 4.5-5mm width
The single-speed chain tensioner and guide is a premium aluminum alloy device designed to keep your chain aligned on folding bikes, MTB conversions, and road setups. It bolts onto the derailleur hanger for a clean, secure upgrade.
✅ Fits single-speed bikes with 10mm rear axle
✅ Supports 4.5mm to 5mm chain width
✅ Premium aluminum alloy construction for light weight and strength
✅ Corrosion-resistant anodized finish with sealed pulley bearings
✅ Automatic tensioning with floating pulley and spring mechanism
✅ Bolt-on to derailleur hanger for clean install
💡 What is a chain tensioner used for in single-speed bike setups?
This handy device keeps the chain tight and aligned on fixed-gear and single-speed builds.
- Maintains proper chain tension during pedaling and gear shifts
- Helps prevent chain slipping and dropping on rough terrain
- Simple bolt-on to derailleur hanger for quick install