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Old 06-19-17 | 06:05 PM
  #16  
SylvainG
Senior Member
 
Joined: Apr 2017
Posts: 1,272
Likes: 11
From: Ottawa,ON,Canada

Bikes: Schwinn Miranda 1990, Giant TCX 2 2012

I punctured my Continental Grand Prix 4000S II with a glass shard after just 500 km. I can see the pinhole in the tire. I installed Mr Tuffy in both tires. Hoping this will help prevent future flats.
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