Nice BOX! The box section resulting from the differential in the rim height aids in lateral and torsional stiffness. RSL wheels improve the look and performance of every bike. Nice tight fit. All RSL rims have a slightly enlarged bead seat diameter to keep tubeless tires snug.
The RSL design not only resulted its stunning looks, it also gave birth to a box section rim that provides superior lateral stiffness and strength. The stiffness of the box section makes the wheel handle corners like a dream while providing greater overall wheel strength.