Note: Only include foams, the tires are not included The white foam will turn yellow due to oxidation, this is not a product quality issue.
Features:
Double-layer design,perfect for enhance the support of the tire.
Single weight is 74g, increase the weight of the tire.
TPE material filler, incredible grip and sidewall support.
This foam is suitable for 1.9 inch tire diameter 100-110mm.
Extremely durable foam,unique red color & white color, improved performance and appearance.