[Rocketman]

I know this discussion took place a while ago, but I can't find it. Which Doo belt are most guys using? I need a new one for my 670.

 

[Machzzzz1]

The stock belt is the best.  I think its a gates extream.  

I have found that you will lose speed and accel going to anyother belt.

 

[Valley runner]

doo belt #067 is the best for your 670.I wouldn't use a gates belt even if they where free!