It seems people either like this mod or hate it. I have no problem with the power or speed of my 600rr, but I do a lot more street riding then doing 160mph. I have no problem taking the top speed downfrom 167 to 140, if I'm going to gain some more pull low end. I just dont want the ride to become annoying like some people said it has become. I'm hearing horror stories of constantly having to shift,high revving and all around uncomfortable ride. Honestly, how does the ride become aftergoin 1 down 2 up with the sprockets?

 

I have -1 in the front and definitely noticed a power gain. The engine revs about 500rpm higher than normal. For example with stock gearing I would cruise at 80mph and the tach would read 7500rpm. Now when I cruise at 80mph the tach reads at 8000rpm. The only annoyance is having to hear the bike at the higher rpm. Not much of an issue for me. Another thing to consider is having to wire in a speedohealer so your speedometer reads the correct speed. It wasn't too bad of an install. Also your gas mileage will go down. Mine went from going 160 miles per tank to about 130 miles per tank. Big difference for since I have a 100 mile round trip commute.

 

I've got my conversion kit on the way. Will let you know after I install it and take her for a ride.

 

(on a 600) Don't expect huge gains in performance like you would going from a 600 to a 1000, but the altered RPMs and fuel milage offset will be worth it as long as preformance is what your after. Personally, I don't really notice any extra shifting involved with regearing, but thats just me.
I can tell you for sure that -2 front with stock rear sprocket on a 04 ZX10R measured 141mph. through the traps but indicated well over 170mph on the cluster. I think it might have been showing almost 180 but it was hard to tell. This gearing was nearly perfect for that bike even on the street.
I know this is a liter bike your looking for info. on a 600, but hopefully it will help.
By the way, -2 front is about like going 1 down 3 up.

 

ive got -1+3 on my 600rr, engine speed at 15krpm in 6th gear is 147mph, my quarter mile time is 2/10ths faster than with stock, and acceleration out of the corners is much sharper. a good track mod, maybe so/so for the street. some people actually like to go - on the rear for street riding.

 

Thanks for the responses. I'll probably end up doing sprockets anyway because a buddy of mine isthe head mechanic at aHonda place by me and he saysit's no problem going back to the old sprockets if you dont like it.I've been reading up ongetting the speedo healer along with the sprockets, so they'll be a definite as well. I'm not looking forcrazy power or speed,I just like the bike feeling real sharp in the lower gears (not that it doesnt already). I thinkI just like having **** done to my bike too. On aside note, I just had my PCIII put in this morning and right from the first ride outta the garageI noticed a huge difference.The power in themid-range RPM's now is sick. Theytuned the bike anddid up a custom map for me. The PC is well worth the money.

 

yea, real easy to swap between the different sprockets, we're talking 30 minutes at worst. i agree w/ you on the pc3, best money ive spent on the bike due to the tunability.

 

How does the speedohealer work? Why would you need to install this to read the correct speed--does changing the sprockets affect the the readout on the speedo?

 

When you change gearing ratios, the speedometer has to be recalibrated to correct any differences/errors.

 

yea, the speedo is on the crankshaft, and goes by engine speed and what gear you are in, it takes all of the gear ratios beyond the crankshaft as a constant. so if you change any one ratio, like the drive and driven sprockets, you will throw off the speedometer