Crooked Grind, Overcrook Grind, Feeble Grind, and Smith Grind

Crooked Grind
Also known as Crooks, Pointer Grind, or the K-grind after the man to whom the trick is most commonly accredited, [[Eric Koston] or [Karl Watson]]. It is like a nosegrind, but the tail of the board is angled away from the rail/ledge on which the trick is performed, causing the edge of the deck's nose to also rub. Invented by Dan Peterka.

Overcrook Grind
The same as a Crooked grind but the skateboarder ollies over the rail at an angle. It is when the majority if the board is angled on the opposite side of the rail to a normal 'crook' grind.






Feeble Grind
In this maneuver, the back truck grinds a rail while the front truck hangs over the rail's far side. Likely invented by Steve Douglas around 1988.






Smith Grind
This maneuver entails the back truck grinding an edge or rail, while the front truck hangs over the near side of the object,leaving the edge of the deck to rub the lip/edge. This trick was named after its inventor Mike Smith. It is considered by many to be the most difficult basic grind trick.The backside version was originated by deaf Florida powerhouse Monty Nolder.