Not too long ago..I went retro through AGD by trading in my old valve. At that time...the lvl10 just barely came out. I was kind of hesitant about trading it in because I thought they will offer they two together. But I did it anyways. To my dismay, the X-valve came out a few months later. I was wondering whats the main difference...besides that the X-valve is made out of mostly aluminum and includes the lvl10 bolt. And whats the price of trading in the retro-valve for the X-valve....plus, I haven't even played with the retro-valve either.
retro vs X-valve
Collapse
X

Comment