06 R6 Gearing

1. ## 06 R6 Gearing

Right now I have the 525 -1 +4 gearing. how much top speed will I loose if I go to +5 or 6? is it even worth adding a couple more ?

2.

3. So you say your running -1/+4 that would give you a 15/49 tooth setup since stock on a 06 R6 should be 16/45.

With your current setup the math shows that at 14000 rpm in 6th gear your top speed would be 213 if you add +5 to your current setup you would drop to 194 and +6 you drop to 190. This of course is only math, it all depends on rider weight, wind, etc. the chances that you see 213 are all dependent on other external factors it could be much less. You'll also be running through the gears fast on the way up to highway cruising speeds and running higher rpms which will cause more fuel burn and your range will drop.

It all depends on what your performance goal is here?

4. my top speed is not 213. its about 240-250 maybe a bit more. It pulls wayyyyyyyyyyyyyy harder then stock right now thats for sure

5. Are you sure about that? Do you have a speedo healer setup and calibrated or are you checking by gps? or some otherway?

6. Originally Posted by phantom2005
my top speed is not 213. its about 240-250 maybe a bit more. It pulls wayyyyyyyyyyyyyy harder then stock right now thats for sure
I'm pretty sure that's mathmatically impossible with your setup, your speedometer is off although it's a theoritical max speed depending on horsepower and wind resistance, riders weight, excess weight on the bike, the actual max speed usually in most cases falls under the theoritcal max speed. Unless your still running 16/45 stock sprockets then your top speed is calculated to be 248 in 6th gear at 14000 rpm. And it will pull way harder than stock, your producing more torque on the lower end. You will not be pulling harder than stock on your upper end.

The mathmatical calculations are just guidelines you can still see in theory what happens if you raise your rear sprocket tooth count by 5 or 6. You may also have to increase the links in your chain in order to get it to fit with this adjustment. You'll be -39.9 mm from the stock position.

7. 248 at 14000??? this is not a 05 bike or a r6s. redline is 17500 or correction 17200

8. Originally Posted by phantom2005
248 at 14000??? this is not a 05 bike or a r6s. redline is 17500 or correction 17200
You have to remember that redline is not the top of the power curve unless your running a power commander and have a different mapping than stock. At redline your producing less power as the curve starts to fall off. The max HP at the top of the curve for the 06 R6 on one dyno test was 111hp @ 14374rpm

9. I just calculated the percentage that your speedo could be out with the current setup and it came out to around 19% which would definitely account for why you think it's like 240 - 250 km/h. 213 + 19% = 253 so like I mentioned earlier your actual top speed is most likely less than 213km/h.

10. Originally Posted by phantom2005
248 at 14000??? this is not a 05 bike or a r6s. redline is 17500 or correction 17200
Try about 16000 actually, they fibbed a little that year.
http://www.motorcycledaily.com/01february06_redline.htm

Anyway the bike with the stock gearing should be capable of hitting around 250km/h (actual speed, not speedo reading), so with -1 +4 you're probably down now to about 215 km/h.
Going up 2 more on the rear would drop it to about 205km/h. Those are actual speeds, not indicated.
You probably won't miss the drop in top speed unless you're doing dumb stuff on the highway or at least a lot of highway cruising, but you'll be shifting a lot more under normal riding.
What you've done already is probably good enough though. Those gen r6's really need it as they make no power under 9000rpm and stock you pretty much have to ride a gear lower than other 600's.

11. sorry the speedo isnt out 45kms in stock form and definatly exceeds 250k.

12. So let get it straight:

Phantom comes on the forum, looking for help in further lowering his top speed. The performance goal, as I read it, given his current set up and possible future set up, is bottom end and midrange gains.

Scorpion provides very calculated advice, as he obviously knows his stuff. Mike chimes in also with calculated advice. Phantom had the right idea asking questions here, because this forum can be a great source of advice.

Phantom disagrees with simple math and physics, then argues that his R6, with gearing changes already, exceeds 250 km/h.

Just checking that I read that right. That's all.

13. didnt you read what he said ? saying that the bike in stock form can only do 250k. as if ... if you honestly believe that a 600cc bike only does 250k with stock gears then your an idiot sorry to burst your bubble. I asked how much would your speed drop if you add 2 more teeth to the back as in 20-30k etc etc and then saying you make more power at 14000 rpm.. I didnt ask for dyno numbers and sorry if you keep your bike at 14000rpm your not going to go faster then the guy that is at redline.

14. Originally Posted by phantom2005
didnt you read what he said ? saying that the bike in stock form can only do 250k. as if ... if you honestly believe that a 600cc bike only does 250k with stock gears then your an idiot sorry to burst your bubble. I asked how much would your speed drop if you add 2 more teeth to the back as in 20-30k etc etc and then saying you make more power at 14000 rpm.. I didnt ask for dyno numbers and sorry if you keep your bike at 14000rpm your not going to go faster then the guy that is at redline.

I can only surmise that the "2005" in your name is derived from your year of birth. You weren't born yesterday, but pretty damn close to it.

15. I've owned the bike and ran it with a GPS....265km'h.....me tucked in smashing the revlimiter DOWNHILL.

Yeah it was reading way high and the tach's out by almost 1500 rpm....

600's are still slow....I can see why you wanna lower the overall gearing....useless to have top end you never use. Sorry I'm not a Math Nerd.

Ummmmmm.....try running Nitrogen in your tires, set the pressures right, adjust the chain, change to synthetic blinker fluid (it's lighter) and let us know how it works out !!

16. Lets take the guess work out of this shall we?

http://www.gearingcommander.com/

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