Hub Brake Disc Spacer with Aluminum Alloy Screws Compatible with Most Mountain Bikes

Product dimensions?: The product has a distance between holes of 44 mm, a diameter of 5.5 mm, an outer diameter of 54.8 mm and a thickness of 2 mm. Measurements are taken manually, so a slight margin of error is possible.
Applicability: This product is suitable for most mountain bikes.
Product Function: This product can be used to optimize chainring spacing on mountain bikes.
Easy to Install: It can be directly replaced without adjustment, offering perfect compatibility and high reliability.
Product Material: This product is specially designed and manufactured from aluminum alloy, ensuring a long lifespan and resistance to damage.