![2Pak Continental Grand Prix GP 5000 700 x 25 IMPROVED GP 4000s ii Road Bike Tire 4019238007824 | eBay 2Pak Continental Grand Prix GP 5000 700 x 25 IMPROVED GP 4000s ii Road Bike Tire 4019238007824 | eBay](https://i.ebayimg.com/images/g/FrcAAOSwWgNfttTW/s-l500.jpg)
2Pak Continental Grand Prix GP 5000 700 x 25 IMPROVED GP 4000s ii Road Bike Tire 4019238007824 | eBay
![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? :
![Continental Grand Prix 4000 S Ii Folding Tire 700x23c Road Bike Tire+freeshipping - Bicycle Tires - AliExpress Continental Grand Prix 4000 S Ii Folding Tire 700x23c Road Bike Tire+freeshipping - Bicycle Tires - AliExpress](https://ae01.alicdn.com/kf/UTB8.3jxvE_4iuJk43Fqq6z.FpXap/Continental-Grand-Prix-4000-S-II-Folding-Tire-700x23c-Road-Bike-Tire-Freeshipping.jpg)
Continental Grand Prix 4000 S Ii Folding Tire 700x23c Road Bike Tire+freeshipping - Bicycle Tires - AliExpress
![Continental Grand Prix 4000S II Folding Road Tyre & Tube Twin Pack - Black - 700c x 25mm | ProBikeKit.com Continental Grand Prix 4000S II Folding Road Tyre & Tube Twin Pack - Black - 700c x 25mm | ProBikeKit.com](https://static.thcdn.com/images/large/original/productimg/960/960/11137474-1434304175544236.jpg)
Continental Grand Prix 4000S II Folding Road Tyre & Tube Twin Pack - Black - 700c x 25mm | ProBikeKit.com
![Continental Grand Prix 4000 S II Tire Folding Bead w/ Reflective Stripe (700x25) - Performance Bicycle Continental Grand Prix 4000 S II Tire Folding Bead w/ Reflective Stripe (700x25) - Performance Bicycle](https://images.performancebike.com/cdn-cgi/image/f=auto,width=950/images/large/bikes/continental/c1023025.jpg)