Hi, this is my first entry, i consider that this one can represent your project very well.
- The green figure can represent energy and movement, but represent a ramp or skate too, is an abstract idea but with a meaning.
- The letter x represent the person, participant, is a person in movement, like jumping with an skate or in a ramp
- This is an entry with a lot of movement and energy, i have no doubt that are very important aspects in your project, for that reason i design an entry in ascendent direction, moving, jumping etc...aspect related with the xtreme sports.
One of my favorites, very dynamic idea with all the elements for represent your project.
This option generates identification with the people with the letter "x" like a person or xtreme sport participant.
This logo look like if always stay in movement, that is good when we talk about a brand of xtreme sports.
I use orange and blue, i consider that orange have more "xtreme energy" than green but if you prefer other color just let me know. I want to make a good job for you, thanks.