ive heard of company's making a kit that instead of shifting 1 down n 5 up they make it 1 up and 5 down. i really dont know what this is called that why i couldnt really search. does anyone use this and how do you like it?

 

Its basically just how the moto gp riders shift making it easier. I think this is a link that someone posted with the same question.
https://cbrforum.com/m_539727/tm.htm

 

http://www.600rr.net/vb/showthread.php?t=33626

I think this is a how to on it. I didnt really take the time to read it or see what year the bike is. Hope it helps

 

You dont need a kit, you can do gpshift with a normal stock 07-08 cbr. Dont know about other models..

 

all you do is flip over the bracket that connects that bar that is attached to the shifter peg to the gear box. (lack of real terms) quite simple

there has to be enough room, but i did it with an extra bracket and some elbow grease on my f4i. of course it does nothing but to say in cool lingo. "i shift gp style.." its kinda cool and if anyone ever tries to ride your bike they will look stupid, but not much of anything else

 

Most aftermarket rearsets give you that option, but its not practical for street use. The reason GP shifts like that is because when they are upshifting often times they are in a corner, tucked, and flyyyying. Clicking down requires less movement and effort, and thus gives the rider more balance when in a lean. If you notice most of the time when they are slowing down or entering a corner (downshifting) they are out of tuck and have much less of a lean angle. Since the rider is upright and now has more centralized balance, they can now afford the extra movement to downshift.

The reason this is not good for a street rider is that you will never have to emergency upshift. Its simpler to kick down, which is why its set up the way it is, if you need that extra braking, kick down and let off the clutch.

 

be vertical- hit the preverbial "head of the nail" with his description.

I think if you have a bike set-up for track use then it would be worth it. But only on the track, I know of a few people who have gotten themselves in trouble because they went to the GP style shift for the street. When they got into a sticky spot, their natural instincts kicked in and shifted up instead of down. Not good if your in a bad spot. Just my two pennies.