What is the best wheel size for zxr400

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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jake
zxr400 oc member
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Re: What is the best wheel size for zxr400

Post by jake »

zimm wrote:FWIW AMS have some (or did V recently) marchesini wheels for a zxr .. very tatty and in need of tarting up, but cheap ..

no idea how they compare to dymags/OE for weight though.
they look lovelly too!
did'nt know they made them smaller than ducati sizes!
im dubious about buying second hand carbon/mag wheels as ive heard of them failing and cracking and all sorts of nasty things! i would of thought they would of gone on leons ams bike if they where good...unless he already has some....
how much was cheap outa interest?
zimm
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My Bike: ZXR400-M4, ZX4, ZX6R.
Location: Herefordshire

Re: What is the best wheel size for zxr400

Post by zimm »

Image

5x17 20mm spindle, no spacers.. takes dymag sprocket .. blah foo etc ..
went for £97 on fleabay :( it was listed 2 or 3 times

i'd have mentioned it before but figured most would have spotted it ..

wary of second-hand mag wheels too.. that and £££ being why i didnt bid.

I figured it was either dangerous tat, or about to exceed my budget .. im hoping the former..
Last edited by zimm on Sat Aug 16, 2008 12:34 am, edited 2 times in total.
zimm
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Re: What is the best wheel size for zxr400

Post by zimm »

jake wrote: did'nt know they made them smaller than ducati sizes!
my ducati 750ss had marchesini's in the right sizes for a zxr400 .. was going to try an fit them as they were SO much lighter (and drilled for HUGE brembo discs :) ) .. but swapped the bike for more zxr's before i got round to it .. lol..
chief
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Joined: Sat Nov 10, 2007 7:08 pm

Re: What is the best wheel size for zxr400

Post by chief »

said wheel is for sale i bought of ebay minus tyre caliper and sprocket needs a repaint looks to be in quite good condition next to picture on ebay but is not the weight saveing i was hoping for so im now gonna cut my losses sell it and continue searching ?
zimm
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My Bike: ZXR400-M4, ZX4, ZX6R.
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Re: What is the best wheel size for zxr400

Post by zimm »

how much are you wanting for it ?
chief
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Joined: Sat Nov 10, 2007 7:08 pm

Re: What is the best wheel size for zxr400

Post by chief »

sorry zimm work daft hours? was thinking £40 plus p@p or could be picked up !
THE FLUTE
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Joined: Sun Aug 17, 2008 6:35 pm

Re: What is the best wheel size for zxr400

Post by THE FLUTE »

Just got a set of Dymags and the front is 1.4kg lighter and the rear 1.2kg lighter than standard If what I read is true every Kg that you take off the unsprung weight is the same as taking 6kg off the bike so will have to see what difference it makes :excited
LondonYank
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Joined: Mon Jun 30, 2008 11:30 am

Re: What is the best wheel size for zxr400

Post by LondonYank »

I was thinking of using a ZX6R F rear wheel which are 17x5" rather than the ZXR400's 17x4.5". It looks to be a fairly straight forward swap with, perhaps, only having the correct spacers made. Has anyone else done this?
AgentOrange
Posts: 31
Joined: Thu Nov 06, 2008 2:09 pm
My Bike: zxr 400 Track KTM950 road
Location: Hastings, East Sussex

Re: What is the best wheel size for zxr400

Post by AgentOrange »

I had a look at doing this.. you're right it looks like a simple job, either slip the ZX6 wheel into the 400 swingarm with spacers or get a complete ZX6 back end (I saw one go unsold on ebay for £150 recently and it had wheel disc swingarm brakes and shock!).. and space the swingarm pivot, which appears to be a few cm narrower than the 400 one. It means you can take advantage of 180 rubber which seems to be more readily available and often cheaper for some reason (I suppose because more bikes use it... 160 tyres are just us SS400's and SV650 minitwins and a few others aren't they? etc)... BUT I was told that wider tyres muck up the handling?? I'm not sure if this is just urban myth, as I've nevr actually ridden a ZXR on 180 rubber, but quite a few people seem to agree that this does nothing for the already great handling... and if it's not for bigger tyres/ better handling, I can't see a reason to do the conversion?

Talking of tyres... I see that MAXXIS the budget tyre people have brought in a race spec tyre which a few racers are using (mainly ones who have a sponsor deal going) so they can't be complete rubbish, and they do make excellent Supermoto tyres apparently... I have had a look around and they seem to only make a 180/120 set for road racing.. I'm wondering if they are going to expand their range of sizes this year to include 160 rears.. or if any of their Supermoto tyres (which do come in 160 size) would be any good...?? I am buying Pirelli Supercorsas at the moment but they soooooooooo shocking expensive!!!
LondonYank
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Re: What is the best wheel size for zxr400

Post by LondonYank »

I wasn't of thinking of going to a 180 section rear tire but still go with the 160 but on a wider rim. This should make the contact patch a bit wider and improve grip. I'm going to email Dunlop & Pirelli and see what rim width they recommend for the GP209 and Super Corsa Diablos 160 section rear tyres. I have a feeling that 4.5 is a tad on the narrow side but I'll wait to see what the experts recommend.
gar.l
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Re: What is the best wheel size for zxr400

Post by gar.l »

5 inch is the perfect size for a 160 tyre,i had dymags on a aprilia rs 250,rvf 400,(looking for a set for my zxr)in both cases i was advised to go 5 inch if i was using 160 rear with a 120 front,dymags are definitly much lighter 1.5 kilos in most cases,very hard to tell from picking up a standard wheel in one hand and dymag in the other,on a scales you'll see the real difference smiler
AFM327
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Re: What is the best wheel size for zxr400

Post by AFM327 »

I mounted up an older ZX6 wheel when I was running the Dunlop 165. It was just a matter of machining the correct spacers. I'm planning on a set of mag wheels with a 5.5 rear. It will fit easy enough and will still be lighter than the stock wheel with a 160.
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