1 Pair Bike Guide Roller Durable Cycling Accessory For Mountain Bikes

Feature: \n 1. Adopting aluminum alloy and ceramic material, this product is very durable to use.\n2. Can be applied for most mountain bike.\n3. Supporting for various speed shifting.\n4. Suitable for use 4 / 5 / 6 mm guide wheel screws.\n5. Offers you a better cycling experience. \n\nSpecification: \n\nFeatures: \n\n--\n\nAdopting aluminum alloy and ceramic material, this product is very durable to use. \n\n--\n\nCan be applied for most mountain bike. \n\n--\n\nSupporting for various speed shifting. \n\n--\n\nSuitable for use 4 / 5 / 6 mm guide wheel screws. \n\n--\n\nOffers you a better cycling experience. \n\nSpecifications: \n\nItem: Bike Guide Roller \n\nMaterial: Aluminum Alloy + Ceramic \n\nColour: Black, Golden (Optional) \n\nDiameter: 4 cm / 1.6 inch (11 T), 5 cm / 2.0 inch (13 T) \n\nWeight: 21-23 g \n\nPackage Included: \n\n2 * Bike Guide Roller \n\n2 * Installation Hole Adapter Tubes \n\n(Other things on the pictures are not included) \n\n1. Our listing p: