This is the Superlight version of the 24x 1 1/8" - 24 x 1 3/8" tube.
It is the 24x1 1 /8" - 1 3/8" Presta valve tube found on 98% of Mini, Jr. and Expert size BMX bikes.
This is the LONG Valve for use on the Deep Dish Carbon Fiber Rims.
It is used for Racing, Jumping, any type of riding.