I have a Vitus Rapide FS CRX. I'm trying to find out if the 120mm linkage will work with my bike. I've emailed Carbonda and they were completely unhelpful (just gave me the price of the linkage but said they could not confirm it would work with my bike). I've trawled a lot of this huge thread but can't find any 100% confirmation that the 120mm frame is exactly the same and can be upgraded just by replacing the linkage. Has anyone actually upgraded their Vitus successfully?