What is the biggest barell size you can use in little league?

In Little League Baseball, the maximum barrel size allowed for bats used in the Major League Baseball division (ages 9-12) is 2 1/4 inches in diameter. However, for the Intermediate (50/70) and Junior League divisions, players can use bats with a barrel size of up to 2 5/8 inches. Always check the specific league rules as they may vary slightly based on the divisions and local regulations.