Nakornthai Bike - ยางนอกเสือหมอบ Continental ขอบงัด - Grand Prix 4000 S II - Grand Prix 4-Season - Gatorskin - Ultra Sport II ขอบฮาร์ฟ - Sprinter Gatorskin - Grand Prix 4000 S II Tubular | Facebook
![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?auto=webp&s=c195cabb75a5d54281bb1839d9095ed71c3a74be)
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? :
![Continental Grand Prix 4-Season Black Edition Road Tire Excel Sports | Shop Online From Boulder Colorado Continental Grand Prix 4-Season Black Edition Road Tire Excel Sports | Shop Online From Boulder Colorado](https://images.excelsports.com/public/large/117444-2.jpg)
Continental Grand Prix 4-Season Black Edition Road Tire Excel Sports | Shop Online From Boulder Colorado
![Amazon.com : Continental Grand Prix 4 Season Road Clincher, 700 x 28-Inch, Black : Sports & Outdoors Amazon.com : Continental Grand Prix 4 Season Road Clincher, 700 x 28-Inch, Black : Sports & Outdoors](https://m.media-amazon.com/images/I/516pYGc+BbL._AC_UF1000,1000_QL80_.jpg)