Building or repairing a 20-inch wheel? Check out the SE Bikes J24SG rim. It’s a 406 ISO size (that’s 20 inches), with a 24mm internal width and a double-wall construction for strength and durability. The bright blue finish looks sharp, especially on BMX, cruiser, or small-wheeled bikes.
Drilled for 36 holes, so it’ll lace up to most standard hubs. The ERD (effective rim diameter) is 390mm, which makes calculating spoke length a lot easier. It’s set up for Presta valves (SV in the specs) and is designed for tube-type tires only.
The sidewalls are non-machined (NMSW), which is typical for alloy rims in this style. It’s a solid, no-fuss rim that can handle street riding, park, or casual cruising.
Whether you’re replacing a bent rim or building a custom wheelset, the J24SG offers good quality at a reasonable price. Pair it with your favorite hub and spokes, and you’ve got a tough, good-looking wheel ready to roll.
From SE Bikes—a brand known for BMX and urban riding—this rim is built to last. Grab one (or two) and get your wheelset dialed.
