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Standard Tyre Sizes

Posted: Thu Apr 09, 2009 5:52 pm
Author: martinz1b
Is this right for my standard Z1B tyre sizes. It's been so long since I changed them I have forgot.

3.25/19 = 100/90 x 19
4.00/18 = 120/90 x 18

Thanks

Posted: Thu Apr 09, 2009 5:56 pm
Author: tlc
I got 3.25 and 4.00 Bridgestone BT45`s on my Thou` from M & P.

They look and feel great :D

Posted: Thu Apr 09, 2009 5:58 pm
Author: Davy Doherty
How much did they cost Chris?

Posted: Thu Apr 09, 2009 6:00 pm
Author: tlc
Think they were about £125 delivered.

I wanted to go with the Z Power Japlops but they were £175.

Happy I did what I did :D

Posted: Thu Apr 09, 2009 6:36 pm
Author: martinz1b
Thanks Chris, I have been searching everywhere for the old sizes.

Posted: Sat Apr 11, 2009 7:01 am
Author: martinz1b
My local tyre fitter has been trying to push me towards Avon Roadriders for £130 fitted. Has anyone any experience of these on standard wheel fitment.

Thanks

Posted: Sun Apr 12, 2009 5:00 pm
Author: Monk
Just fitted 100/90x19 and 130/80x18 Bridgestone bt45's.

Seem real good....but still early days.

Don't ask me how much they were, they were all wrapped up with some other work I had done.

Posted: Sun Apr 12, 2009 6:36 pm
Author: martinz1b
Just fitted 100/90x19 and 130/80x18 Bridgestone bt45's.


And is there still enough clearance at the swinging arm. Does the profile change affect anything? Please let me know how you get on with that back tyre, I will not be able to fit mine for another few weeks so this interests me.

Martin

post

Posted: Sun Apr 12, 2009 6:40 pm
Author: ted1r
Road riders arn`t fit to tie to the side of a Grimsby trawler :!:

Ted

Dunlop Arrowmax best I found

Re: post

Posted: Sun Apr 12, 2009 7:04 pm
Author: martinz1b
Road riders arn`t fit to tie to the side of a Grimsby trawler :!:


Thanks for that, I have never been an avon fan. I am going to use my Lester mags until my original wheels are renovated, I don't suppose there is any difference in width if I wanted to fit a 130 rear. I looked at my old wheels and they are fitted with a nearly new rear ME99 and a Dunlop Red Arrow up front, I used to love that combination back then.

Also does anyone know what the front wheel cover/blank looks like on Lester mags, I have the six bolt version for the early Z1's. This is the cover for the side without a disc. A close up picture would be great :D

Martin

Re: post

Posted: Sun Apr 12, 2009 7:48 pm
Author: bigmac103
Road riders arn`t fit to tie to the side of a Grimsby trawler :

Ted1r I've got an Avon roadrunner on my Z1A so far it's been ok, what bad experiences have you had? Thinking of changing to Bridgestone bt45s when I get some money together, you've got me worried now! :mi

Posted: Sun Apr 12, 2009 7:54 pm
Author: tlc
Been out on my STD size BT`s today Bill. Nicely run in now and first time out in the wet.

All I can say is confidence inspiring in extremis :D

Posted: Sun Apr 12, 2009 8:03 pm
Author: bigmac103
Do you judge a tyre by how it handles just in the rain? 'cos I'm sh*t scared when I get caught in the rain which I'm glad to say is not often. Bad experience 30 odd years ago on my first Z1A :ghostface

Posted: Sun Apr 12, 2009 8:21 pm
Author: tlc
If tyres are the wrong profile, or mismatched in any way, then it will really show up in the wet as twitchy handling.

I know the rest of my set up is good so any change would be down to the tyre.

Took some muddy and bumpy roads on the way home at "cough, cough" MPH and no weave, no shake, just nice and predictable.

Any tyre will feel good on hot sticky tarmac until it lets go in a big way. If a tyre starts to squirm on tar banding in the wet and you can get it back by controlling your machine balance then that is as much info as you will ever get, or need.

Wet roads are how you test predictability :D

Posted: Sun Apr 12, 2009 8:50 pm
Author: bigmac103
Cheers Chris.