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Continental Grand Prix 4000 S Ii Folding Tire 700x23c Road Bike Tire+freeshipping - Bicycle Tires - AliExpress
![Bought a set of 28c Continental Grand Prix 4000S II tyres exactly 1 year ago from Wiggle, they're already cracking. Is this normal, and how do I avoid this in the future? : Bought a set of 28c Continental Grand Prix 4000S II tyres exactly 1 year ago from Wiggle, they're already cracking. Is this normal, and how do I avoid this in the future? :](https://preview.redd.it/my6xmpzttsq41.jpg?width=640&crop=smart&auto=webp&s=d07053f183687fe5f700b2c726780866a3d6d10c)
Bought a set of 28c Continental Grand Prix 4000S II tyres exactly 1 year ago from Wiggle, they're already cracking. Is this normal, and how do I avoid this in the future? :
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Continental Grand Prix 4000s Ii 700x25c 28c Road Bicycle Folding Tires Bike Tire - Bicycle Tires - AliExpress
![Continental Grand Prix 4000s Tires Clincher user reviews : 4.1 out of 5 - 102 reviews - roadbikereview.com Continental Grand Prix 4000s Tires Clincher user reviews : 4.1 out of 5 - 102 reviews - roadbikereview.com](https://content.roadbikereview.com/channels/roadbikereview/images/products/large/product_411202_29676.jpg)
Continental Grand Prix 4000s Tires Clincher user reviews : 4.1 out of 5 - 102 reviews - roadbikereview.com
EuroBikeParts: Set of 2 Continental Grand Prix 4000 S II Tires GP 4000S 700 X 23 Road, Discontinued Unavailable, CONTI-GP4000sII
![Continental Grand Prix 4000 S II Tire 700x25 Black Folding Bead and Black Chili Rubber - Retro City Cycles Continental Grand Prix 4000 S II Tire 700x25 Black Folding Bead and Black Chili Rubber - Retro City Cycles](https://cdn.shoplightspeed.com/shops/617129/files/34779965/1652x1652x2/continental-grand-prix-4000-s-ii-tire-700x25-black.jpg)