The Helicon 1125 Rotax motor was specifically designed by Rotax for Buell and resides in the 1125r and 1125cr. Most industry insiders show this motor going into the Ulysses XB12XT and 12X and perhaps one other mount in the Buell line this year. As for the 1125 not selling well , it is actually just the opposite , it sells very well , and with the CR now dominating the track and winning so many races it is bringing alot of traffic to Buell showrooms.
Back to the Helicon motor , it is "similar" to our 990 , but is not simply an overbored and stroked 990. There are significant differences . Would it work in the spyder ? Yup. But lacks reverse and would have to have the cases redesigned to accommodate that. I would rate it as significantly more powerful than our 990 , it is really a great running motro but perhaps a bit more harsh. Look for BRP to source their 1200 triple basic design now used in the seadoo and skidoo line up for any "larger" spyder touring models in my opinion. The Helicon motor has more than enough snot to pull our bike or the larger touring model that is rumored around , but if they are going for the Goldwing experience , they will go to their triple.
Signed , a happy Buell and Spyder owner. :thumbup: