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early hub
Posted: Sat Apr 06, 2019 7:50 pm
Author: needaz1100r
Help sorting a quandary,
I have a front wheel hub, it appears to be an early black one and the reliable source (Grubby from MTC Reading) clearly remembers it coming from a crashed Z1-A.
BUT, it has a 4 bolt disc, not 6.
Is there a cross-over? Were Z1-B hubs 6 or 4 bolt?
Incidentally, I haven't yet removed the disc to see if maybe it was re-drilled for a 4 bolt disc?? I will do that tomorrow.
Re: early hub
Posted: Sun Apr 07, 2019 2:15 am
Author: Philippe
Hi needaz1100r
all the Z1, Z1A and Z1B front wheel hubs had a 6 bolt disc. The 6 bolt hubs are larger in diameter than the 4 bolt hubs.
To my knowledge there were no 4 bolt hubs in those days (73 -74 - 75) for the Z1A.
Perhaps it wasn't the original hub in that Z1A .
GrtZ
Philippe
Re: early hub
Posted: Sun Apr 07, 2019 6:55 am
Author: needaz1100r
Thanks Phillippe
I knew about the Z1A and Z1. I've never been up close and personal with a Z1-B so just wanted to be sure.
Yours would seem to be the only logical explanation.
Are you located far from Raalte?
Re: early hub
Posted: Sun Apr 07, 2019 10:40 am
Author: Philippe
Hi needaz1100r
I live in Belgium, in the south of the province of East Flanders, in a small village: Lierde.
If you want pictures of the hubs, just let me know.
GrtZ
Philippe
Re: early hub
Posted: Sun Apr 07, 2019 11:43 am
Author: ADRIAN H
Some Kawasaki H1 had 4 hole front hubs.
Re: early hub
Posted: Sun Apr 07, 2019 12:33 pm
Author: z1bman
the kh500a8 & z900a4 where the first models to have a 4 bolt hole hub but they where bare aluminium not black
Re: early hub
Posted: Tue Apr 09, 2019 5:37 pm
Author: needaz1100r
280mm disc, original black finish, M8 boltsx4, 9K date code ie 1974.
I am thinking Adrain's H1 suggestion may be correct.
Would appreciate any input,
Thanks,
Re: early hub
Posted: Tue Apr 09, 2019 6:35 pm
Author: 8 Valve Mark
your date ties up with june/ july 74 mark..i have a similar disc in the store OT nov75. kh400 possibly? it measures 278mm. do you you need 6 bolt discs? m
Re: early hub
Posted: Tue Apr 09, 2019 7:40 pm
Author: needaz1100r
8 Valve Mark wrote:your date ties up with june/ july 74 mark..i have a similar disc in the store OT nov75. kh400 possibly? it measures 278mm. do you you need 6 bolt discs? m
I think S3, effectively KH400.
Thanks Mark, but this is just in my old stock, I can sell it now I know what it is.
Don't need a 6 bolt disc, but good to know you have one.
Re: early hub
Posted: Tue Apr 09, 2019 8:58 pm
Author: 8 Valve Mark
that's a good twin disc upgrade for the right person. m (I've got more 6 bolt discs than I'll ever need mark, gotta have a clear-out soon.
...
Re: early hub
Posted: Wed Apr 10, 2019 9:51 am
Author: needaz1100r
8 Valve Mark wrote:that's a good twin disc upgrade for the right person. m (I've got more 6 bolt discs than I'll ever need mark, gotta have a clear-out soon.
...
Looks like I am picking up another Z1 project at the weekend, so I'll be in touch...