Hey there,

I hope to help you on your thule clamp question. Now, without the book being right in front of me it makes things hard to be exact, but the Fat Mouth Clamp is sold to be a Ski/Snowboard accessory adapter only. its not intended to be used on other accessories, which have their own "universal" adapters, like their water sports accessories. further more they aren't really "universal" Thule sells larger kits for larger load bars, for example Nissan X terra and ever growing number others. Last i checked with Thule, they couldn't help me with a rack for my VX