Originally Posted by
TandemGeek
The 2007 Santana Arriva SE models were spec'd as 9 speed tandems using 105 STI shifters and an XT RD-M751 rear derailleur
I don't have the catalog in front of me, but if memory serves, the SE models were given a "free upgrade" to 10 speed in the second half of the year. I do not remember a free carbon fork upgrade on SEs (ever).