Bicycle Derailleur Set – Aluminum Alloy 21 Speed Shifter & Transmission

Details

• Material: Our mountain bike derailleur is made of high-quality aluminum alloy, . ABS and carbon steel, high precision, and high strength.
• Easy installation: Our bicycle transmissions are equipped with easy installation , novices can also replace them. Left is the turn without numbers, and right is the number position.
• Universal Type: Our bicycle derailleur sets are suitable for all brands of the mountain bikes, city bikes, recreational bikes, road bikes, and folding bikes
• Safety and Flexible: In order to adapt to different weather and road conditions, the bike's rear derailleur can be adjusted slightly in multiple places to ensure accurate speed change performance.
• Convenient Storage: The speed rear derailleur can be stored and fixed when they are not in use, which really does not take up space and is easy to store.