I know everyone complains about the low RPM acceleration of cbr. Well i have a 05 600rr and im lookin for some more pull in the low end. What size are the stock sprocket and what size would be a good size to jump to?

 

search ebay for a -1 +2 conversion kit thatll be +5 over stock, which should be quite a bit noticable. dont do it if u like to go over 140 mph often. also leave your factory exhaust on, usually stock exhaust will give the most low end.

 

but going over 140 is where the fun is! j/k -1+2 should be exactly what ur looking for.. And for a better sound on a buget try cutting down that exhaust can.

 

FWIW - low end power was very intentionally sacrificed for top end rush. If you want to get moving keep the tach pointing up... On the track I sit around 10k RPM as much as I can (on the F4 that's where the nice rush really kicks in).

Having said that -1/+2 will increase the difference in ratios and will make each gear pull more. Just remember, you also sacrifice speed in each gear - you're simply shifting what speed you make torque to a lower speed.

If you do do this mod - seriously consider purchasing a speedometer correction device, such as speedohealer. Large changes in gear ratios will make the speedometer wildly over-read. That means more miles on your odometer when it comes time to sell it and you'll be guessing your speed more (or going slow).

 

+1

Keep in mind that these are not cruisers with low end torque. You have to use the upper end of the long rpm range on these bikes to really get the power band. I stay between 5-7k for regular riding and 8-10k for more aggressive twisties.

 

I agree, -1 + 2 seems to be a very popular combination. I wouldnt worry about killing the top end as there is no reason to be doing 170+ on the streets anyways.

 

170+ on what 600?

 

The stock gearing is 16 front 46 rear, many of us have done a -1 +2 conversion to make it 15/48 gearing. I konw when I picked my bike up after having it done the ride home was amazing, felt like a new bike.

Also something to keep in mind is it is highly recommended to replace your chain at the same time you replace your sprockets, so that they will wear evenly.