Does anyone know what acually is limiting the speed on the new 2008touring ultra classic? I can only get around 105 tops. I had a 2005 Road King , only 5 speed, and got to 130 before backing down andstill had more left. I know to some that 105 is fast enough, I just think with the bigger motor and 6 speed tras, it should get considerably more.

 

Larger frontal area = more wind resistance.

More weight means more horsepower needed to push it as fast.

EPA tuning keeps the power down.

 

Harley is limiting the speed somehow. I still have much more rpm left around 105. So I do not think it is power or wind resistance.

 

I know what you mean mine it he same way. Im over here in Germany and thats crusing speed some times I put in a 103 kit and it still will only go 110 in 5th or 6th gear. I think your right about harley limiting the speed some how. I have a Tmax on the way so hopefully that fill fix the problem.

 

105 is touring?

How fast do ya go when you're in a rush??

 

I think during a SERT tunning they can remove the top speed/RPM restrictions.

 

LOL
The Ultra and most likely most or all of the HD's engines are not able to pull that hard stock whether it is a 96" or 103" or 110"
There is only so much power available. How can you expect lets say 75hp engine to push a 850 lb bike more than 105mph? Give me a break will ya. If you want to cruise 105mph why did you get a Ultra? They are designed for touring and comfort.
Thats why I have 3 bikes
A touring bike 42mpg
A cruiser w/105 hp and 120 tq. 34mpg
a gas saver 60mpg

 

Wait till Thundermax comes out with their new unit in a few months.. Put it on yer bike, it will do over 105 then.

 

Thats funny. Some how i don't think the tundermax is going to be able to do that even if they get all the bugs worked out which will be fun to watch.

 

What bugs? I'm not aware of any bugs. Quite few users that shouldn't be messing with fuel injection but I don't know of any major bugs.