50-50 Grind, 5-0 Grind, and Nosegrind

50-50 Grind

The 50-50 grind is where both trucks are on the edge. This move evolved from the horizontal-stance carve grind in pools and was taken up on top of the lip by such skaters as Jay Adams, Tony Alva and Stacy Peralta.

5-0 Grind

Pronounced "Five-Oh". In this maneuver, the back truck grinds the rail/edge, while the front truck is suspended directly above the rail/edge. This move is similar to the manual, although the tail may be scraped against the obstacle as well as the back truck, which is not considered proper on a manual.



Nosegrind

In a Nosegrind, the skateboard's front truck grinds a rail or edge, while the back truck is suspended over the rail/edge. It is similar to the nose manual, except performed on a rail, coping, or ledge. Jamie Thomas is one of the few people who can balance a legitimate nosegrind down a lengthy handrail. This move originated on vert, initially in the form of Neil Blender's New Deal (nose pivot to disaster), then by his more advanced progression of said move, the "Newer Deal", which left out the disaster part and just pivoted all the way back in. The "nosepicker" is also a fore-runner of the nosegrind.