Going down a tooth up front on my R-6

[Cr1MiNaL]

Dude ffs, stay true.

[homer]

wouldnt you think the bikes gearing is made the way it is for a reason ?

After all when you start changing the gearing , sure youll get more top speed if your lucky , or you may not , maybe even less top speed .
You may make the gearing higher so you get longer accleration in each gear .
Its all a personal thing really .
I do know this from experience , you may end up with vibration at the spot you dont want it .
It could have been there at 5000rpm. Change the gearing and now you may get it at the exact speed you need to sit at, previously you rode thru it didnt notice it .
You may find you have enough power in top gear , get some extra top end speed . What will happen in a strong head wind .
from experience i wouldnt alter the sprocket size .
I dont exactly know , just some thought .

[FkNAmerican]

Im not looking for more top speed. My R-6 tops out at around 155-160 indicated. Im looking for more acceleration.

Im not really worried about vibration either as the R-6 is generally smooth throughout the rev range........

Top speed blasts are fun and all.....but can also get you into BIG trouble. Im more interested in accelerating as quickly as possible to legal speeds (cough cough).

[discotex]

I've been debating dropping a tooth on the front on the CBR... I ran the change through a gearing spreadsheet and basically I'd be converting 6th gear to 5th gear as far as cruising RPM goes. Tried motorway riding in 5th and it was fine so I'm not worried about buzzyness. Would make powerstands at safer speeds easier

[Unit:Me]

This is a standard mod we do to all our new bikes. No experience on a 600, but have done it to the following bikes:
Aprilia RSVR 1000 Factory; ZX10, GSXR, TL1000s, SV1000s, ZX14, Ducati 900ss, but not sure if we did it to the KTM Superduke.
Most of these bikes have been too long in first gear, so totally improves around town riding, and gives much quicker response out on the open road. Scrubs a bit off the top end speed, but hey, thats already 150kms over the road legal limit anyways, so not such a bad thing.

[discotex]

This is a standard mod we do to all our new bikes. No experience on a 600, but have done it to the following bikes:
Aprilia RSVR 1000 Factory; ZX10, GSXR, TL1000s, SV1000s, ZX14, Ducati 900ss, but not sure if we did it to the KTM Superduke.
Most of these bikes have been too long in first gear, so totally improves around town riding, and gives much quicker response out on the open road. Scrubs a bit off the top end speed, but hey, thats already 150kms over the road legal limit anyways, so not such a bad thing.

Hmm might have to do it then. 125km/h in 1st really is too much for around town and I think it'll be a wee while before I can top out my bike on the straight at Taupo so losing 10-20km/h in 6th is no problem.

[homer]

Im not looking for more top speed. My R-6 tops out at around 155-160 indicated. Im looking for more acceleration.

Im not really worried about vibration either as the R-6 is generally smooth throughout the rev range........

Top speed blasts are fun and all.....but can also get you into BIG trouble. Im more interested in accelerating as quickly as possible to legal speeds (cough cough).

oh i sees whats you mean
yeah the legal road speed limits that we as riders all obay.

cough cough

[robertydog]

I went -1 on the front and it is like riding a different bike. Bloody awesome.

[Cr1MiNaL]

I went -1 on the front and it is like riding a different bike. Bloody awesome.

but you ride the king of kings mate, respect.

[FkNAmerican]

hey robertydog.....yeah man thats what everyone tells me. Its literally like riding a new bike according to the peeps I know who have done it.

I've posted some pics of my friends '08 CBR600RR on here awhile back.

He and I are competitive freaks (and best friends since high school) so when I mentioned, off hand, that I was considering going down a tooth in the front he went off the same day and ordered sprockets so his would come in before mine. Bastard.

His sprockets are gonna be in next week and prolly installed before next sundays ride. I've ridden his CBR before when it was stock so Im gonna ride it again after the sprocket is in and let you all know how it goes.

Then, assuming I like it, I will have the same thing on my R-6 within two weeks or so depending on my schedule.

[discotex]

His sprockets are gonna be in next week and prolly installed before next sundays ride. I've ridden his CBR before when it was stock so Im gonna ride it again after the sprocket is in and let you all know how it goes.

Mate PLEASE make sure you tell us. Would be great to have a comparison for my CBR

[FkNAmerican]

Dont worry....he's gonna let me ride it ounce he gets them installed so I can feel the difference before going ahead with the same mod on my R-6.

I'll let you know what I think. I have a feeling its gonna be some good shit.

[crash harry]

I went 1 down on the front and 2 up on the rear on my old 95 ZX9R. It was the best mod I ever did to a bike. I would have done it already to the R1 except that it's got a gearbox speedo drive and a speedo healer makes the whole thing a bit more expensive...

One other thing though, you're gas mileage will get worse. It'll go harder, so you'll go harder. And motorway cruising will be thirstier. But still, you never get something for nothing.