Ok- I been on this forum and seen all the post. I know plenty of you use darksided tires. I was wondering if it is worth it. I don't hear many of you talk about the amount of miles your getting between changes. I am on my second set of stones. I have 25k on my bike these stones went on at 14k. I'm thinking these wil do better so I may make it to 30k. Average 15k per set of stones, ain't so bad. So why should I switch to Darkside the back tire? Basically, is it worth it? It's not worth it unless it saves me significantly. Meaning not changing the tire every 30k. Just a little savings is not going to do it. I'd rather just stick with the stones. Let's see the figures, not opinions. Hard facts.