ZTTO MICORNEW Bike Speed Chain Tensioner Bicycle Replacement Accessories - 10 Speed

• Constructed from a composite material of plastic and steel, seamlessly molded for lightweight design and excellent compatibility
• Featuring a steel guide arm and wear-resistant PA nylon pulley, combining high strength and hardness for smooth rotation, minimizing chain wear, and ensuring seamless gear shifting
• Easy to install and remove
• It can keep your bike chain tight
• It is a great accessory for driving enthusiasts

Specification:

• Applicable: mountain bike/road bike
• Material: plastic steel main material+steel guide wheel arm+PA nylon guide wheel
• Installation method: Direct-mounted eye derailleur (the frame needs to have a rear derailleur tail hook)