So every 15 mm or 20 km hub I've ever used has end caps that just pull off with a bit of a yank. I've now got some giant branded hubs (P-XC2 wheel set) that I can't get off for the life of me. Have tried the usual methods, leverage, vice, molegrips, wd40 etc. Now I'm wondering if they are fixed in some other way... any ideas????!!!