The Bicycle Bottom Bracket Washer 2mm 4.5mm Plastic Spacer for SRAM is designed to assist in critical middle axle repairs, providing an essential component for your Dub Crankset. Made of wear-resistant material, this washer ensures durability and longevity, reducing the likelihood of future brake failures. Its precise size accommodates SRAM's 4.5mm spindle, ensuring a perfect fit and minimizing wobble issues. The 2mm washer is ideal for wider cranks or stronger constraints, while the 4.5mm washer accommodates milder constraints or narrower cranks. Both washers are compact, lightweight, and easy to apply, making them an ideal choice for cyclists seeking to upgrade their bottom bracket assembly without having to replace their entire wheel. Invest in this high-quality, reliable product today and enjoy faster, smoother rides without the hassle of expensive repairs.