Reply With QuoteThis may be due to the fact that the primary is geared lower on the 12 than the 9. I have heard of people changing out the primary gears from the 12 and put the ones from the 9 in it to gain that top speed.
Hello everyone still new to the forum having issues with my xb12scg. I traded up from the xb9 but lost my top speed this bike tops out at 120mph and my xb9 topped out at 134mph is this normal.
This may be due to the fact that the primary is geared lower on the 12 than the 9. I have heard of people changing out the primary gears from the 12 and put the ones from the 9 in it to gain that top speed.
I think you have it backwards Firebolt. The XB9 is geared shorter then the 12, when people do the primary swap (putting the xb9 primary in the 12) they do it to get more low end oomph, but you lose top end speed. Something like 15mph slower.
Is it possible that someone did that swap on yours already Squatty? You may want to get an ECM Spy cable and see what's going on with the computer. Look for error codes, see what your AVF is set at.
Do you have any mods on the bike? What year? How many miles?
Yea I was just on asb and just realized it was the opposite because I was reading the description of the kit
even if the swap has already been done the bike should go about the same top speed. because then both bike would have had the 9 gears, and the lower red of the 12 wouldnt have that profound effect of top speed. there must be something else.
+1 to buellysses ecm spy cable and see whats going on.
i have a stock primary gear and chain from my xb12 firebolt , ill sell it to you if you want it? . cus i swapped mine to the xb9 and i love it. pm me if your interested.
if you wanted top speed you should have bought a rice burner..
this thread has been posted before...
http://www.buellxb.com/Buell-XB-Foru...ll-Top-Speed--
the big thing to remember is all speedos are off so unless you post a pic of your speed on a radar gun it kind of is pointless....
after all we own the corners
:)
you can get buells up to 150-160 with the correct sprocket ratio, you would have to do a chain and sproket conversion tho. maby raise your red line get different cams lifters maby a port job. but i c that as pointless like buddhabuell said shoulda bought a r1 or somthing
I just hit 138mph ten minutes ago on my 08 xb12Scg and I have not done any gear changes.
I don't know where you guy live, but I couldn't ever get my bike that fast. In phoenix our surface streets are too crowded and our freeways have photo radar.
I've had mine to 103, then almost got ran off the road.
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