| Author | Message | ||
     Emptychambers |
Hey guys. Been out for a couple months due to a totalled bike. The 03 Xb9SL is gone, but I actually made some money on the deal, so whatever. Anyways, I've heard that the 12 is in many ways preferable to the 9. Judging from the sales, and just generally how common they are, I'd say this is true, so as I save my pennies, I'll be on the lookout to replace it. I digress. I heard a lot of people, especially Uly owners find the 12 to be geared too tall, and swap in the 9 primary for about a 10% increase in torks/acceleration. This does however bring top speed down, and while I'm no speed demon, banging off the limiter at 120 seems a little low. So I considered also gearing it up slightly with a chain conversion. From what I'm calculating, a 21/48 brings top speed back to around 140 assuming the bike will pull to that. Is this feasible, or would I just be undoing the transmission gearing? I'm just going based on the fact that the bike will still rev faster, and take off the same, but do more for each rev, than with the stock belt. Does this sound right? | ||
| Ducbsa |
What counts is your overall ratio of crank rpms to rear wheel rpms. By putting the conversion on, you would cancel out the 9 primary ratio. | ||
| Sifo |
If you are doing the chain conversion, just get the ratios you are looking for and save the cash from not doing the primary conversion. Worst case is you spend a couple more bucks for a different sprocket set it you want to change it again. You could probably just swap the front sprocket and still not spend much more. The chain conversion gives you a lot of flexibility. | ||
| Gschuette |
I agree with sifo but disagree with him at the same time. I say change the primary first as it is WAY cheaper than a chain conversion. If you don't like it then go to a chain. | ||
| Diablobrian |
not sure how much cheaper the primary conversion is than some of the home-rolled chain conversions. IIRC some were doing chain conversions in the neighborhood of $100. Not as fancy and rear axle isn't adjustable. but you do get changeable secondary ratios... I have the factory Buell racing chain conversion on my bike and LOVE it. | ||
| Greg_e |
If you can adjust the tension roller, does a person really care if the axle can be adjusted? | ||
| Hammer71 |
Tensioner can be adjusted on my Saintly conversion and have never had an issue with sprocket changes or the lack of axle adjustment. | ||
| Diablobrian |
agreed greg and Hammer. I was just saying that I run a little different set-up, but the saintly style conversions have a great track record as far as I've heard. | ||
| Deanh8 |
I put xb9 primary on my chain bike. I made up for it with rear gearing and my engine still feels better. Revs faster, seems more responsive in the feel and revs Really changed its character I love it |
