2 PCS Durable Bike Derailleur Hanger Extenders - Rear Gear Hook Extension for Bicycle Frame, Compatible with Most Bikes (Easy Installation & Reliable Performance)

• 【Make gear more smoother】When your rear mech gum up in mud, the extension hanger will fit easily and performs well. It is an easy way to expand your gearing capacity to make your gear smoother than before. No more trouble will be bother your cycling time at outside.
• 【Sturdy material】The rear derailleur hanger, which adopts aluminium alloy material, this material is robust, lightweight, anti-rust, anti-corrosion. After some tests, the hook works well with road bike, and has better performance than original one.
• 【Work well for rear cassettes】The hook compensates for fitting an extra wide range rear cassette, makes you can use a larger cog on the cassette, as for cycling lovers, it is a good genuine part to your bike.
• 【Save Energy for Installation】Decent rear hanger extension, screwed in first time with no cross threading, you can easily fit the hanger rides very well and fits very strong to the derailleur.
• 【Wide Applicability】Fits most bikes, can be replaced, and reduces frame maintenance costs. Also suitable for electric bicycles and city bikes

Features: ● Made with aluminum alloy that ensures maximum strength and durability with the least weight ideal for cycling lovers. ● Moves the position of the shift back and thereby improves the behavior and reach of the change in larger crowns than usual, thus facilitating the change of speed. ● Accessory or replacement very easy to install with an allen key. Simply by changing the screw that holds the change to the bicycle plate. Specification: Material: aluminum alloy Size: 44 × 11.5 mm / 1.73 × 0.45 inch Color: black, blue Package includes: bicycle tail hook extension*2, one for each color