Whats up everybody. Wow, its been a while since I've been here. Alright I need your help, my buddy bought a Specialized M4 and uhhh.... what the hell is an M4?! I can't find a review for it. I've seen reviews for Specialized M4 hardtails, but its not a hardtail its a dually with air. On the pivot points it says "S-Works" on it but thats the only kind of identification I saw. I was just curious if you guys could tell me a little about it. Thanks.