Brief History of the Marque: OK and OK-Supreme
Prior to the First World War, OK motorcycles were fitted with De Dion,
Minerva, Precision and Green engines. Subsequently the company fitted its
own 292cc two-stroke and Blackburne 250 and
350 engines in both sv & ohv configurations. There were also 348cc
machines with oil-coooled Bradshaw engines and
JAP
versions from 246cc to 496cc. The 248cc racing models were famous. Walter
Handley completed the fastest lap in the 1922 IOM TT 250 class at 51.00
mph on a Blackburne-engined OK Supreme.
From the mid 1920s the racing bikes had JAP engines. OK Supreme fitted
their own 248cc engines in the early 1930s, retaining JAP engines for the
larger capacities. During this period they added a 348cc OHC engined machine.
Among the last OK-Supreme models were ohv JAP engined high-camshaft
versions with 248cc, 348cc and 498cc single-cylinder engines.
Although production ceased in 1939, a limited number of JAP 350cc racing
machines were available until the death of John Humphries, the son of Ernest
Humphries who was one of the two founders of OK, Humphries & Dawes.
Sources: Tragatsch, IOM History
Sat Mar 01 2008
json.ulf<at>gmail.com
petroltank 1929
OK SUPREME 1929
Am looking for an 1929 petroltank for OK Supreme.
Stockholm
.........
I actually have pictures of a similar tank!
OK-Supreme_1929_Tank_1.jpg will be posted shortly.
Fri Nov 09 2007
rogermarg<at>hotmail.co.uk
VALUATION
OK SUPREME FLYING CLOUD 1932
WOULD BE GRATEFUL FOR ANY HELP WITH VALUATION
CYPRUS
Thu Oct 04 2007
json.ulf<at>gmail.com
ok 1929
Does anyone have any info about what modell this Ok is?
Paper says 1929 500 sidevalve.
All kind of info is welcome!
Ulf
sweden
Fri Sep 07 2007
rfhharvey<at>hotmail.com
1939 O.K. Supreme 350 cc Jap engined
In1966 when I moved to Canada ,the above bike went "Missing" from my
lock up .Plate #AUS 894 .Does any one know if this bike is still running.
Ontario
Sat Jul 28 2007
goldwing643<at>yahoo.co.uk
Motorcycle Sport Magazine PIC
1937 350 OK Supreme
Hi
I am having a clear out of 4 decades of Motorcycle Sport magazines I
own and in the November 1976 edition there is a wonderful full page colour
picture of a 1937 OK Supreme registration number DXL374. I can'not find
an owners club for these bikes but was wondering if the owner/bike still
exist and whether he/she would like the Mag for nothing. I am a restorer
myself and know what it is like to have memorabilia particularly, of your
own model. I am not looking to make money, I just thought it would be a
nice thing to do. Should this note find an owner or a tip about how to
locate the person then please reply.
Many thanks
Al
London
Sun Jul 15 2007
ericthehorbol<at>yahoo.com
OK Supreme Motorcycle
1931 OK Supreme Lighthouse 250cc
Would like to correspond with other OK Supreme Lighthouse owners.
My wife & I have 2 & would like to exchange information.
Thanks. Eric & Teresa
USA
Mon Jun 25 2007
becky<at>drawert.fsnet.co.uk
electrical
ok supreme silver cloud 250cc 1934
wiring diagram for coil ignition .particularly headlight/ignition switch
devon
Thu May 31 2007
slaapstad<at>hotmail.com
OK Supreme using BSA hubs
OK ?? - BSA C11
I understand that some OK Supreme motorcycles just prior to WW2 used
the BSA C11 wheel hubs. Can anyone confirm this for me please??
Cape Town
Mon Jun 04 2007
chris-675<at>hotmail.com
1938 OK Supreme
500cc
I have the opportunity to buy a 1938-39 OK Supreme. I believe it was
the only year model that had a 500cc Matchless engine. The engine, clutch
and gearbox is excellent and its all there other than the magneto. Its
very rough cosmetically and needs a thorough restoration and I was wondering
if this bike would be worthy of the time and money needed to restore it
back to its original condition. Any help in this matter would be greatly
appreciated. Regards Chris.
Gold Coast, Australia
Wed May 09 2007
peter.jackson39<at>tiscali.co.uk
query bike's suvival
OK Supreme 250cc 1933
I owned this 1933 250cc Jap engined Ok Supreme Reg. no.HV 2971 in the
1950s. Does anyone know if this bike has survived. I have one
photo of it. Peter
Falmouth UK
Fri Apr 06 2007
bevkee<at>bigpond.com
OK Supreme N34
Would you have any contacts who could help me restore my N34. Thanks
Trevor.
Australia
Wed Feb 21 2007
salesqld
primosmallgoods.com.au
Humphries & Dawes OK
1913 OK
I have inherited a 1913 OK (last interim registration 1960) and was
wondering about value for insurance purposes. My father was involved
in the VMCC NSW for many years (1950's & 60's) and this was the only
bike he kept.
Sandra (Brisbane, Qld Aust)
Australia
See the page on Vintage
Motorcycle Prices
Mon Feb 19 2007
pearsonrileyxtra.co.nz
Ok Supreme 1937 Phantom
trying to find information about this motorcycle. we bought at
the same time as a T100, and haven't used it much. Its going to be
turned into a classic racer, and has a 500JAP engine - koz/f [serial number
/s
can any one direct me to more information about this model? i
know it was never raced, at least not at IOM, however, with the sports
JAP engine, it will have some decent legs.
also - does anyone know how many were produced?
cheers
NZ
Thu Jan 11 2007
pencadbigpond.net.au
retoration
1938 250 cc flying cloud deluxe OK Supreme
Can anyone help me with information which will allow me to accurately
restore this bike.
australia
Mon Jan 08 2007
geordie.gonadtesco.net
Please see atachments
OK
Can yu helpme I'm tring to find some infomation on a OK motorcyle that
my randfather rode over Mount Helvellyn in the Lake District UK in September
1921 I will atach the only infomation I have a photostat of a paper cutting
from the time plus a photo of him with the bike at the end of his feat,
This photo is over 80 years old and the quality is poor if you can tell
me the model or any info on this machine I would be very grateful the info
I have sent you can be used by yourselves to show more of this marque.
Thanking you
G.Harland
Durham-UK
Wed Nov 22 2006
infoeurobrit.com.au
ok supreme
rcb/321 ? silver cloud
I,m looking at purchase of a blue painted racer with bronze head-eng.
no rcb/321.is this a 250 or 350-its cammy-not jap-thanks franc australia
Wed Aug 23 2006
forceaccessus.net
OK Supreme Engines
OK Supreme mid 30's
Can anyone tell me if OK SUpreme were fitted with JAP and AJS engines
around the mid 30's? Are these engines the same? Would appreciate
any info or clues on where to search. Thanks, Raymond
USA
Sat Apr 29 2006
dfroggattjamaol
I'm trying to find out where the ok supreme had there pemises in birmingham,i
would be grateful for any info
staffordshire
Sat Apr 08 2006
the.abelsxtra.co.nz
Information
OK Gladiator
I was wondering how much information you have on these bikes as my
Grandson has just inherited one and would like to restore it, I'm not sure
of the year of it .
PLEASE HELP ME
NZ
Thu Mar 16 2006
LANDPOWERSERVAOL
INFORMATION FOR RESTORATION
CAN ANY BODY ASSIST ME ON ANY INFORMATION WITH REGARDS TO A 1931 500CC
JAP ENGINE OK SUPREME THAT I WOULD LIKE TO RESTORE.
JOHN HIGHLAND
Many thanks for you reply,
Stupidly I dismantled the bike a few years ago, which I have stored
safely.
At that time all that was missing (I think) was the magneto, which
I would think is pretty standard as there seems to be no trace of mag driven
lights been ever on the bike.
My main questions are on what shape and form the bike should be restored
in, and where would people recommend to put such things as the wheels for
example, to be restored.
The engine requires assembly and its been that long since I dismantled
it that I cant remember how to put it back togther !
Hope someone one can help ?
Regards John
Tue Mar 14 2006
jheijdennl51wanadoo.nl
O K motor bike
Hallo, Can you tell me more about a O K bike this bike has a flattank
and tanktransfers with the name Humpries and Dawes with the year
1923 on it,a 500cc J.A.P motor,is ther a website that i can look,is chuc
a bike expensive,what prices can i expect,is suche a bike Rare
greetings from the Netherlands H vd Heijden
Meijel
Fri May 27 2005
camerondadodo.com.au
OK Supreme
Hello there
I have a 1935 Road Knight 600cc, after any info regarding this model
or the 500cc Hood.
Sat May 28th
Here is a shot of the bike, they were sold as a sidecar only bike.
But how it came to Australia could be different as apparently the sidecars
were generally not imported with the bikes but one supplied locally, due
to shipping costs. These were also basically a larger capacity version
of the 500cc "HOOD" So a lot of the cycle information should be similar.
Currently I am chasing info through the VMCC of NSW and awaiting on
the previous owner to detail his restoration. They have mentioned to me
in the past that they have "Knights Head" symbol that apparently came from
a sidecar which had been attached to an OK Supreme. This I am trying to
get a reproduction one made if possible.
I am learning a bit about the bike as I go, one thing I should not forget
is that the timing side of the crankshaft is a "left hand" thread.
Thanks for the interest
Dave Cameron
5th February 2005
1935 OK Supreme Motorcycle Sales Brochure on Ebay UK
April 25, 2002
OK SUPREME OWNERS: Hello, I am looking to buy a mid to late 1930's
OK Supreme motorcycle. I would like to make contact with anyone in the
USA who owns one of these machines. I have some literature on this marque
I would gladly make copies of for fellow owners. Bill Hooben, hooben
at usa
If you have a query about OK-Supreme motorcycles, or wish to share your
knowledge of these classic British machines, please contact
us!
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