✅ 【Double Pulleys Chain Tensioner】: Want to build a single speed without having to buy a dedicated frame? Try our Single Speed Chain Tensioner, it has two pulleys design, just like a rear derailleur, while maintaining proper chain tension.
✅ 【High Quality】: Made of aluminum alloy and stainless steel, with upgraded CNC process, and have sealed bearings for durability. Our bike chain tension is anti-rust, which can ensure a longer service life.
✅ 【Compatible 8-11 Speed Chains】: The pulleys are 1.8mm thick at the tooth which fits most 8 through 11 speed chains. Easily assemble on the derailleur hanger whether QR axle or thru-axle you're using. It takes care of the chain tension and lets you run a single speed wheel on vertical dropouts with a derailleur hanger.
✅ 【For use with vertical drop-out frames】: The bolts to the frame where the rear derailleur would normally go and allows the use of a single speed rear wheel on bikes with vertical dropouts.
✅ 【Reliable Customer Service】: MUQZI always focuses on product quality and service. Any questions, please feel free to contact us. We are here ready to help.