Your kids will hang with the big dogs on this legit xc tyre for kids the bontrager xr1 24 wired mountain bike tyre has the identical tread of our notorious x1 racing tire perfect for multi purpose riding on trails or pavement with fast rolling and predictable corning the xr1 24 tyre excels in hardpack and loamy conditions with a durable compound that may still be in great shape when they have outgrow the bike