attack 20 porting?

bushbikeyz

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have a M7 162 with a attack 20 and was thinking of porting the track. anyone done this before? pros, cons? thanks
 

Slamnek

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Track porting used to be a"good thing" for a while and now it seems that a non ported track works better than a ported one.
 

snowdingo

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A20s are a pretty soft rubber, I think you would lose a lot of strength from porting
 
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