Royal was a Sakae Royal line of forged handlebar stems (and other components) using high strength aluminum. Originally, it was the top line but was superceded by Fousir, which was meant for strictly competition (though it was not milled and drilled like the Royal ESL, which was actually lighter). There was also a slightly heavier, more robust forged line called Apex. Lesser lines, such as Custom and Jun, used more economical melt forging (actually a high pressure casting process) and lower strength aluminum alloys, resulting in heavier stems.