I measured my rear shock on my trek y26 and i got 6 and 3/4 inches. I want to put a rock shox ario air shock with lockout for those hard climbs. Is there anywhere i can buy online? I can get it locally for $245, but im sure i can get it online cheaper. Can somebody help me out? Also am i making the right decision with this rear shock? I saw others with lockout feature a lot more expensive! What you guys think.