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Help needed on sprocket setup

There seems to be more and more members appearing that are racing the ZXR400 so i've created a special section just for you to show off results, discuss meets etc etc.

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p.lally
Posts: 122
Joined: Wed Feb 27, 2013 2:35 pm
My Bike: ZXR400 H2

Help needed on sprocket setup

Post by p.lally » Thu Jul 03, 2014 8:38 pm

Hello, I am needing some advise on sprocket setup, I am currently building a bike which I intend to use on the track.

I am wanting it set up more for acceleration rather than top speed (but not that much it runs out of go)
Can anyone please advise on which setup to go for???

I'm thinking of 14/47



kawazonkey
Posts: 128
Joined: Mon Oct 07, 2013 11:54 pm
My Bike: Kawasaki zxr400

Re: Help needed on sprocket setup

Post by kawazonkey » Thu Jul 03, 2014 10:48 pm

What tracks are you racing on? Different set ups for different circuits!



p.lally
Posts: 122
Joined: Wed Feb 27, 2013 2:35 pm
My Bike: ZXR400 H2

Re: Help needed on sprocket setup

Post by p.lally » Fri Jul 04, 2014 7:21 pm

kawazonkey wrote:What tracks are you racing on? Different set ups for different circuits!
Hi, hopefully first one on this bike at cadwell (next month), but then probably any of the ones up North, Anglesey, oulton park or donnington



wes
Posts: 90
Joined: Thu Aug 13, 2009 1:45 pm
My Bike: ZXR 400

Re: Help needed on sprocket setup

Post by wes » Sat Jul 05, 2014 11:36 pm

I used 14-46 for Donny and Brands Indy
15-46 for faster tracks like Snetterton and Silverstone



wes
Posts: 90
Joined: Thu Aug 13, 2009 1:45 pm
My Bike: ZXR 400

Re: Help needed on sprocket setup

Post by wes » Sat Jul 05, 2014 11:37 pm

Use search here to find other tracks and posts....



stuzx4r
Posts: 39
Joined: Sat Oct 03, 2009 2:48 pm
My Bike: zxr400sp race bike
Location: runcorn, cheshire

Re: Help needed on sprocket setup

Post by stuzx4r » Sun Jul 13, 2014 8:53 am

hi, obviously the amount of tuning and more importantly how hard you ride will affect what your gearing you require, however for both Oulton and Cadwell I would suggest 14/48.
(I'm assuming your on a standard L gearbox)

Good luck and have fun.

Stuart.



p.lally
Posts: 122
Joined: Wed Feb 27, 2013 2:35 pm
My Bike: ZXR400 H2

Re: Help needed on sprocket setup

Post by p.lally » Sun Jul 13, 2014 9:25 am

stuzx4r wrote:hi, obviously the amount of tuning and more importantly how hard you ride will affect what your gearing you require, however for both Oulton and Cadwell I would suggest 14/48.
(I'm assuming your on a standard L gearbox)

Good luck and have fun.

Stuart.
Hi and thanks, I am looking to hit cadwell shortly and I have just bought a 14 and 47. My bike is a h2 model.

Thanks
Peter



stuzx4r
Posts: 39
Joined: Sat Oct 03, 2009 2:48 pm
My Bike: zxr400sp race bike
Location: runcorn, cheshire

Re: Help needed on sprocket setup

Post by stuzx4r » Wed Jul 16, 2014 9:00 am

Hi Peter, you will be in the correct area with 14/47, it will probably feel as though its to short as you bimble round for the first couple of laps, but once you have it opened up at reving to 15k it will be fine. H2 gearbox is very close to the common L box so you will be fine, its only the H1 that's shorter.

Have fun, Stuart.



cargo
zxr400 oc member
zxr400 oc member
Posts: 3382
Joined: Sat Jan 08, 2005 10:33 am
My Bike: tomos moped
Location: Carrickfergus Northern Ireland

Re: Help needed on sprocket setup

Post by cargo » Wed Jul 16, 2014 9:27 am

I like to have a selection of sprockets to choose from. I've got rears from 40 up to 50 and fronts from 13 to 16

After an initial estimate and lap or two I can then select the best set up from the options available.

What you're actually trying to do is get the gearing so that at the end of the longest straight the bike is 6th gear on your bikes red line and your just about to brake for the next corner. You can of course play with the gearing to suit a particular section but that will come at a cost elsewhere.................as ever there is a compromise to be had.
Wind speed and direction can be a factor too as can wet or dry track conditions



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400y
zxr400 oc member
zxr400 oc member
Posts: 114
Joined: Tue Aug 30, 2011 11:32 am
My Bike: ZXR400H1 GSXR600

Re: Help needed on sprocket setup

Post by 400y » Fri Jul 18, 2014 1:40 pm

Cargo - what gearing do you run at Armoy on the 400?



cargo
zxr400 oc member
zxr400 oc member
Posts: 3382
Joined: Sat Jan 08, 2005 10:33 am
My Bike: tomos moped
Location: Carrickfergus Northern Ireland

Re: Help needed on sprocket setup

Post by cargo » Fri Jul 18, 2014 3:03 pm

400y wrote:Cargo - what gearing do you run at Armoy on the 400?

Good question. I've only done it once and I don't think I have a note of it in my book

Prob something tall ish Tandragee gearing might be a decent starting point.



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