20 Pieces Bike Bicycle Bottom Bracket Spacer 7 8 9 10 11 Speed Cassette Aluminum Alloy Flywheel Hub Washer Flywheel Hub Spacer 1 mm 1.5 mm 2 mm 2.5 mm 3 mm Bottom Bracket Washer BB - Skylety, Skylety-89

• Durable material: the bicycle bottom bracket washers are made up of anodized aluminum, which fit for 7 8 9 10 11 speed card freehub conversion and button bracket BB adjustment. And the material is lightweight and durable, supporting long term use. They can help you get good symmetry with minimal effort, and you can use these bicycle handle washers safely Multi functions: the bike speed cassette washer can be applied for solving several problems. Firstly, you need to use the bike speed cassette washer to adjust when the the tooth plate of your bike touches the frame or the crank touches the frame. Secondly, the central shaft needs to be equipped with a speed cassette washer when the front shift gear can not come down Change the speed: these aluminum alloy flywheel hub washers can install 10 speed flywheel boxes to 11 flywheels, 7, 8 and 9 speed flywheel boxes to 10 11 speed flywheels, and 7 speed flywheel boxes to 8 and 9 speed flywheels Just in case: the bicycle bottom bracket washer is lightweight and easy to carry due to the small size. You can put the bicycle bottom bracket washer in your backpack just in case. After adding the washer, you will find that it can be locked by your flywheel cover to achieve shifting You will get: the package includes 20 pieces quick acting box type bicycle washers, including 4 pieces of 1 mm, 4 pieces of 1.5 mm, 4 pieces of 2 mm, 4 pieces of 2.5 mm, 4 pieces of 3 mm, the color is for you to choose