![競賽級別] 德國馬牌公路車外胎Continenta gp4000S II grand prix 4000s 2代700 x 25c 幼胎單車維修, 運動產品, 單車及配件, 單車- Carousell 競賽級別] 德國馬牌公路車外胎Continenta gp4000S II grand prix 4000s 2代700 x 25c 幼胎單車維修, 運動產品, 單車及配件, 單車- Carousell](https://media.karousell.com/media/photos/products/2017/01/23/___continenta_gp4000s_ii_grand_prix_4000s_2_700_x_25c____1485183926_34769f73.jpg)
競賽級別] 德國馬牌公路車外胎Continenta gp4000S II grand prix 4000s 2代700 x 25c 幼胎單車維修, 運動產品, 單車及配件, 單車- Carousell
![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 4000 S Ii Folding Tire 700x23c Road Bike Tire+freeshipping - Bicycle Tires - AliExpress
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Continental Grand Prix 4000s Tires Clincher user reviews : 4.1 out of 5 - 102 reviews - roadbikereview.com
![Continental Grand Prix 4000s Ii 700x25c 28c Road Bicycle Folding Tires Bike Tire - Bicycle Tires - AliExpress Continental Grand Prix 4000s Ii 700x25c 28c Road Bicycle Folding Tires Bike Tire - Bicycle Tires - AliExpress](https://ae01.alicdn.com/kf/Hbcfc7bd5451d4effa0bdb0c22d135321Y/Continental-Grand-Prix-4000S-II-700X25c-28c-Road-Bicycle-Folding-Tires-Bike-Tire.jpg)
Continental Grand Prix 4000s Ii 700x25c 28c Road Bicycle Folding Tires Bike Tire - Bicycle Tires - AliExpress
EuroBikeParts: Set of 2 Continental Grand Prix 4000 S II Tires GP 4000S 700 X 23 Road, Discontinued Unavailable, CONTI-GP4000sII
![Continental Grand Prix 4000s II Cycling Tire (Bleck Set Of 2 Tires, 700 x 25C) : Amazon.in: Car & Motorbike Continental Grand Prix 4000s II Cycling Tire (Bleck Set Of 2 Tires, 700 x 25C) : Amazon.in: Car & Motorbike](https://m.media-amazon.com/images/I/61ylIcGsZ+L._SX425_.jpg)
Continental Grand Prix 4000s II Cycling Tire (Bleck Set Of 2 Tires, 700 x 25C) : Amazon.in: Car & Motorbike
![Amazon.com : Continental GP 4000S II Bike Tire, Black, 28-Inch x 22mm : Bike Tires : Sports & Outdoors Amazon.com : Continental GP 4000S II Bike Tire, Black, 28-Inch x 22mm : Bike Tires : Sports & Outdoors](https://m.media-amazon.com/images/I/81e-c761hyL._AC_UF1000,1000_QL80_.jpg)