Not at all. We ran a similar belt drive open primary on our race bike back in 2006 and I know a customer ran one on their road bike in Italy with no problems at all.
I can understand minimalistic tails but they have gone to the extreme on too make bikes lately. The two that come to mind are this one and the Ducati I saw on Cafe Racer the other night. Just too small, IMO.
True Danny, but car alternators varies the field strength (thereby varying the amount of power generated) based on demands of the vehicle. And car alternators have fans built into the front pulley.
I wasn't asking because I thought it impossible, I was just curious if it created problems.
Now, I do have concerns regarding the way the XB charging system works. Since the stator output is a function of speed of rotation and number of passes the rotor makes, excess power is shunted back to the stator and bled off as heat. Since the stator is no longer in an oil bath but is rather air cooled, is there sufficient cooling?
I know the transfer rate of air is far less than water. I have to assume that the heat transfer rate of oil is higher than air.
The advantage of the open primary is that there is always fresh, cool air. Is this airflow sufficient to absorb the heat caused by the shunted energy?
Lots of interesting features, but as a whole not so wonderful for me. Bike as a whole is too incongruous in form.
Tim's (NoRice's) and some other custom XBikes are more to my liking. The Confederate look, while interesting to see and study, was never something that appealed to me either.
Fatty... Another factor in heat transfer is heat differential. So air cooling would pick up some help there as well. Cool air versus hot transmission fluid...
There's two visa on YouTube of him riding it from and back to the shop, with one in the day and one in the night. I figured he logged at least some break-in miles on it.