derbi flat reed airsal 50cc - 39.9mm piston
derbi flat reed 50cc piston
 
  $39.99

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derbi flat reed 50cc airsal piston!

39.9mm piston

taco rating taco rating 5 of 5 5 of 5 Total Reviews: 1 give your taco rating here

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5 of 5 super rad stock replacement February 18, 2014
taco eater : Anonymous Person from san francisco, CA United States  
this is the way to go for a stock replacement....there's no window on the intake side of the piston so you'll need to cut yer own. single 1mm ring = revs for days

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