I want more acceleration, not a huge amount more but I don’t need 160+ top speed, would rather have a bit more pull.
I know some people go -1 at the front and +2 or +3 at the rear, but just wondering if I can go -1 at the front without having to buy a new chain ? Sprocket is £7 from B&C which is quite reasonable but if I need a new chain too that’s not so great.
Will -1 at the front make much difference ? Will I feel the difference ? It’s going from 16 to 15 teeth, so 6 and a bit percent lower.
Taking a tooth off the front sprocket is roughly equivalent to adding 3 teeth on the back sprocket.
As long as you have enough movement left on the chain adjusters you shouldn’t need to touch the chain.
It’s a good mod to do on litre bikes, not so sure about 600s as you will be changing gear even more often than you do now:w00t:
Give it a go mate, what have you got to lose?
Hi, to be on the safe side I would change the whole lot but if your chain is newish then go for the drop you will still have to cut the chain.
It does make alot of a difference I was 3 up on the rear and it was just great, after brands my rear sprocket lost a few teeth 
so I have to return to the standard one and now I can really see the diffence even the engine braking has become mellow.
A good mod to go for
It’s an almost new ZXR6 so chain should be in good nick still. I’ve gone down a tooth on many bikes and never had to take a link out of the chain unless it was stretched anyway.
I’m with stupid ^^^ 
Chop it in for that ZX 10 
Change gear less too :hehe:
Go down one tooth on the front to start with, Kwakas are generally overgeared and its a great mod to get up to speed faster and use the revs across all gears.
As for keep changing gear, thats part of having a 600, you learn to hussle a bike instead of being lazy.
Chain should be fine as long as you can tighten it ok, the problem will come that as it stretches, you won’t be able to adjust it as much before you run out of adjustment.
I went up 3 teeth on the back of my CBR6 and love it! That and a dyno was like a new bike! 
Grunt trumps Changes all day long;)
Thanks for the suggestions, the ZX10 will cost a lot more than a couple of sprockets !
B&C Express have suggested going -1 at the front and +1 at the back to keep the chain length the same as they say there is very little adjustment.
Does mean I need two sprockets though and more gear changing will be good 
Thanks
What about the LEDs?
My 170bhp gixxer is -1 on the front and +2 on the rear. It’s a lot of fun Though as others can atest, it now eats rear sprockets for breakfast with the torque.
As nearly all “race spec” rear sprockets (increased teeth) are Alloy, not original steel ones - happens to all of them - had 7 teeth left on my last Renthal rear (out of 41) - should still last a good few thousands miles
Good mod - I’ve done it again.
do you have an electronic speedo…doesnt it screw up the speedo…
Yes, looking at a speedo healer but that’s another £60 
The speedo was tracking the Garmin to within 1mph up to about 70 odd mph and the sprocket change will only make it over read by 8.4% so I’ll leave the speedo for the time being.
Wrong speedo isn’t a problem once you get used to it. I went +3 on the back and now speedo is about 5mph over at 30 which goes up to about 10mph over at 100mph.
It’s always reading over and not under so there no real issues cos if you forget you end up going to slow rather than to fast anway (when passing cameras etc I mean).
Cheers, that’s what I thought, should be OK once I know how much it over reads by.
What gearing did you go for? I have the same bike.
Silly question, if this keeps happening would you not be better off with a steely Jay?
