GURANTEE:Suitable for mountain bikes,folding bicycles, commuter bikes.If you have any questions, please contact us, we will provide you with the best solution. Applicable Occasion: Compatible with 6/18 Speed 7/21 Speed, suitable for mountain bikes and road bikes. Premium Quality:Accurate gears provide light and stable shift performance,and making riding easy. Easy to Install: Adopt ergonomic design, with simple design, easy to install and remove, convenient to use. MODEL:RD-TZ31-A bike rear derailleur.This is a mountain bike derailleur, which is basically suitable for mountain bike, and can adjust the speed of 6 / 7.

Auto Part Position: Rear. Color: Black. Brand: BATULLO. Date First Available: June 29, 2020. Best Sellers Rank: #123,270 in Sports & Outdoors. Customer Reviews: 4.3 out of 5 stars 1,465 ratings 4.3 out of 5 stars. : B08BZR8KDS. Size: ?SD. Part Number: ?TZ32. Manufacturer: ?LINUGR. Color: ?Black. Brand Name: ?BATULLO. Package Weight: ?0.28 Kilograms. Item Package Dimensions L x W x H: ?6.22 x 4.69 x 2.32 inches.