RD M4100 M4120 Rear Derailleur RD-M4120 2x10/11 Speed Mountain Bike Exchange Bicycle 10s 10v 11s

HIGH QUALITY AND FINE - The surface of the main body is anodized to withstand the weather without fading. Use special imported high-precision measuring tools for testing to ensure product quality. Made in China Gear: 10 speed Total capacity: 42T Components: Derailleur Model: M4120 100% Guarantee: Customer satisfaction is our top priority. If you have any questions, problems or dissatisfaction with the product, please send us an email and we will help you as soon as possible

• 【Material】Made of high-quality steel, . Precise gearing provides light and stable shifting performance for easy and comfortable driving.
• 【Application】Suitable for mountain bikes, road bikes, variable speed bikes, folding bikes and city bikes. It is a must-have bicycle accessory for your cycling trips.
• Type: rear derailleur
• Material: alloy
• Installation: These parts or accessories are easy to install with a hex key, just the screws that hold the pulley to the derailleur. Don't over-tighten as it will increase friction with the rear derailleur, reducing the performance of the bike's jockey wheel.