Z1OwnersClub GB

hi, owning a tricked up z900 has been a childhood dream since i was 15 now i am 40 and a z1000 has been offerd to me!! i am going to do it. i am thinking of upside down forks with billet yolks, wavy discs, fat bars. standard headlight and clocks. ohlins shocks, big rear wheel my be 160 or 190, alloy swing arm, 4 into 1 pipe 2.4 seat or copy, standard paint work may be brown and gold. can any one tell me where i need to brace frame? thanks brian.

Hi Brian,if you do a forum search (top of page) you'll find a thread about frame bracing.Had a butchers myself the other day.
Good luck with your dream (project)
Here's the link to frame bracing:
http://www.z1ownersclub.co.uk/forum/vie ... ht=bracing

Thanks for info jack. Just got to wait and see if bike is any good. The chap selling it is on holiday for 2 weeks. The only info I have on it is, it has been modified a bit, with different rear shocks and a 4 into 1of some some sort, flatside carbs, The person that told me about it thinks the model is a 1975 Z1000. I will have to wait and see. It has a MOT so can't be to bad. price is £1500.00 is that about right?

Welcome Brian....

£1500 sounds good if its running OK.....

yes it runs ok he was riding it last summer. Does any one know if i would be able to go as wide as a 190 rear tire

hi brian ,hope things work out and its a good one ,by the way kawasaki only started the z1000 model in 76 ,so be sure its not a different frame ie from a 900
ollie

Hi, Good luck with the purchase, with regard to the 190 tyre check out the post what to do with new wheels wed 7th nov from me. Steve from Debbens posted this very useful info.


Hello KwackerZ1, I have rebuilt my Z1000 rear hub with a 6" rim and a 180x17 Shinko tyre, this rim needs to be offset to allow the chain to clear the tyre and then refit the wheel back into the centre line of the bike by fitting the hub over to one side. to do this you need to fit a wider swing arm and an offset motor sprocket, the 5/8 offset sprocket with a 530 chain gives enough clearance.
The widest rim you can fit without fitting an offset sprocket is 3.5" but this will not fit in the stock swing arm with the chain adjusters pulled forward.
Which ever wheels the first job is to ensure that the front and rear wheels line up, so many we see do not. Once you have the wheels aligned you can run a straight edge (long straight tube will do) off the face of the rear sprocket to see how much the front sprocket needs to be offset, sometimes it is possible to machine the rear sprocket carrier to move the chain line in.
The frame tubes will limit how far you can offset the chain line and therefore how wide you can go with the rear wheel, unless you run the chain on the outside of the frame tubes. The frame tubes are 240mm apart which gives a centre line for the wheel at 120mm, but as you need the width of the chain (non O ring 530 is 23mm) plus at least 1 mm each side for some clearance you need to allow a minimum of 25mm both sides of the tyre.
So with 120mm centreline for the rear wheel minus 25 mm you have a maximum 95mm centre of wheel to the edge of the tyre.
Regards, Steve

You can fit what you want if you've got the cash/skill/kit to do it...

Generally a 150/160 is max without going overboard on mods.....

I run a 180 with a JMC s/arm and an off-set front sprocket.... on me Z1000A2, and me ERL has a 160, aslo with an off set f/sprox

Stick with the STD 4.00 inch on the back.

It takes a real man to handle a bike with a wider tyre on the front than the back.

thanks for all your help lads, its going to be a long 2 weeks any chance of some pics of the 180 conversion

180 tyre

OOh er Chrisu
more pics , more pics

chrisu is that z1r yours ? that rear end is massive

that looks awsome....

i think i will go for 180 rear tire on gsxr running gear, where do i get a offset front sprocket from? god i hope this bike is ok when i see it!!!!! as i am soooo!! excited.