I have a 06 cbr 1000. I'm thinking about doing down (-1) on the front sprocket. Has anyone done this if so how do you like it.

 

On my 05, I went up 2 in the rear. Going down 1 in the front is equal to about 2 1/2 up in the rear.Your bike should benifitabout the same as mine did.....and I like it. It gives the bike more usable and more noticable power. It only changes the rpms by a few hundred. But it really woke up my 05. If you don't get a speedo healer, your going to be running about 63 mph speedo when your actually doing about 55. the fudge factor is raised a bit.

But, well worth it.

 

Have done that mod on every single bike i have ever owned, and will do it on any new one i ever get. IMO best mod you can ever do, and one of the cheapest.

 

I went +2 on the rear of my 06' also. It really was a good mod. I was able to keep the samechain also. Anymore than +2, and I am sure you'll need a longer chain. I really need a speedo healer though. I only had 1500 miles on the bike when I did the mod. Now, its showing 7500.

 

yes this will cause you to rack up the miles faster, unless you have a speedo healer.a

 

do it. i went -1 in the front and the bike was way better all over the rpm.

the original drive 16/42 = 2.625
-1 drive 15/42 = 2.8

this is a 6.25 reduction, not really adding that many more miles to me


Bishop WOW you were able to go up 2 without changing the chain?

 

Yep, I was able to keep the same chain. I actually found out I could keep the same chain by a link I found on here. It moves the front tire further foward about a half inch or so. But, to anyone that does this mod, be careful. I just had new tires put on my bike. I guess the guys at that shopweren't smart enough to know the chain is suppose the have 1.25" of slack.Evedently,theywere trying to get the blocks to line up with the adjustment marks on the swingarm. But, since the tire is moved foward, it is just aheadof the first mark when the chain is adjusted properly. I left the shop and the bike was making a funny humming sound. The chain was the first thing I checked. And, it was tight as a banjo string. I had to fix it when I got home....

 

Where did you buy your plus two sprocket, I take it the sprocketwill also fit my 06 1000?

 

06 is already +1 in the rear from the 05.

I was really nervous about going -1 (front) on my 06. I was afraid that it would be revving too high for my taste, especially since I am on the interstate alot.

I am so glad I did it! So much fun! average interstate speeds still keep me at around 5k rpm (which is perfect for the charging system on the CBR's) and the first 3 gears are SO much more fun now!

Get a speedohealer.

The only sprocket that I have heard bad things about is Vortex. I know a lot of people swear by Driven and AFAM. I got my setup through CycleGear.

 

I got a DRIVEN rear sproket Aren. Yes, it should fit on your 06' 1000 rr without any problems. My bike was pretty much stock when I got it. I can't remember exactly where I got it. I believe it was Superbike Supply. I was going to get an AFAM sproket. I was just going to get a steel sproket. I know most peolpe upgrade to aluminum. But, I had heard that they wear out quicker. So, I just went with steel. But, the sales rep informed me that AFAM didn't make a 44 tooth "steel" sproket. Thats why I went with a Driven sproket. It has been on the bike nearly 2 years and looks fine....