Author Topic: Serial number ID guide by Graham Weeks  (Read 103085 times)

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Offline disc_valve

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BS50 Sport - Known serials
« Reply #20 on: May 05, 2011, 06:29:16 AM »
Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web.


BS50 Sport    Production started in late 1964.

(Total of 82,200 Disc-Valve BS50s built)

Year   Month   Code   Serial
1964   June   13 F   
   July   13G   
   Aug   13H   
   Sept   13 I   
   Oct   13 J   
   Nov   13 K   
   Dec   13 L   


Year   Month   Code   Serial
1965   Jan   13 M   005717
   Feb   13 N   008300
   Mar   13 O   009533: 012598
   Apr   13 P   012783; 014868
   May   13 Q   015579: 017086
   June   13 R   017617: 018217
   July   13 S   018819: 020473
   Aug   13 T   021203: 021673
   Sept   13 U   022125: 022671
   Oct   13 V   023705: 024909
   Nov   13 W   025317: 026569:026574
   Dec   13 Z   028927


Year   Month   Code   Serial
1966   Jan   13 A   029371
   Feb   13 B   
   Mar   13 C   030390
   Apr   13 D   
   May   13 E   
   June   13 F   034320 : 034429
   July   13 G   036129
   Aug   13 H   
   Sept   13 I   
   Oct   13 J   043002
   Nov   13 K   
   Dec   13 L   

 
The production totals suggest that the 50 Sport probably remained in production until some time in 1968.  
« Last Edit: March 11, 2014, 07:41:16 AM by disc_valve »

Offline disc_valve

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BS60 Sport - known serial numbers
« Reply #21 on: May 05, 2011, 06:30:56 AM »
Here is the full list I have of known serials, taken from biokes I've actually seen and those I've seen for sale on the web.


BS60 Sport    Production started in Jan 1965
(Total of 25,800 BS60s built)

Year   Month   Code   Serial
1965   Jan   15 M   000963; 002029
   Feb   15 N   002200
   Mar   15 O   003764: 004263
   Apr   15 P   006064; 007267
   May   15 Q   008271; 009578
   June   15 R   010071, 010364
   July   15 S   010670; 011699
   Aug   15 T   012205: 012271
   Sept   15 U   013173: 014003
   Oct   15 V   014280: 014580
   Nov   15 W   017186; 017938
   Dec   15 Z   018145


Year   Month   Code   Serial
1966   Jan   15 A   020117: 020579
   Feb   15 B   021416
   Mar   15 C   021471
   Apr   15 D   
   May   15 E   
   June   15 F   023119
   July   15 G   
   Aug   15 H   023289
   Sept   15 I   
   Oct   15 J   023692
   Nov   15 K   024090
   Dec   15 L   


Year   Month   Code   Serial
1967   Jan   15 M   
   Feb   15 N   
   Mar   15 O   
   Apr   15 P   
   May   15 Q   
   June   15 R   
« Last Edit: May 06, 2016, 06:04:36 AM by disc_valve »

Offline disc_valve

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BS90 Sport Oil Injection - known serial numbers
« Reply #22 on: May 05, 2011, 06:35:22 AM »
****************************************************************************************************
****************************************************************************************************

NOTE:-
===

If you are looking for other 90 models (BS90 D premix, BS90 Sport premix and BS90D Oil injection), They are listed in a new post in this topic, entered on 16th May 2016. For BS90 Sport Oil injection, read on in this post.

****************************************************************************************************
****************************************************************************************************


Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web.

BS90 Sport (Jet-Lube)   Manufacture started in early 1966

(Approximately 11,000 Jet-Lube BS90 Sports built)

Year   Month   Code   Serial
1966   Jan   18 A   
   Feb   18 B   000185; 000684
   Mar   18 C   001620; 002440
   Apr   18 D   002856; 003351
   May   18 E   004672; 005735
   June   18 F   005970; 007482
   July   18 G   
   Aug   18 H   
   Sept   18 I   
   Oct   18 J   
   Nov   18 K   
   Dec   18 L   


Year   Month   Code   Serial
1967   Jan   18 M   
   Feb   18 N   
   Mar   18 O   010129
   Apr   18 P   
   May   18 Q   
   June   18 R   010172
   
 
« Last Edit: May 16, 2016, 06:04:22 AM by disc_valve »

Offline disc_valve

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BS100 Sport - known serial numbers
« Reply #23 on: May 05, 2011, 06:36:13 AM »
Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web


BS100 Sport    Manufacture started in Jan 1967

(Approximately 16,500 BS100 Sports built)

Year   Month   Code   Serial
1967   Jan   20 M   00200, 00832
   Feb   20 N   01195; 01300
   Mar   20 O   
   Apr   20 P   02450; 02550
   May   20 Q   03088
   June   20 R   04137   
   July   20 S   
   Aug   20 T   
   Sept   20 U   09917
   Oct   20 V   
   Nov   20 W   
   Dec   20 Z   12370


Year   Month   Code   Serial
1968   Jan   20 A   
   Feb   20 B   
   Mar   20 C   
   Apr   20 D   
   May   20 E   
   June   20 F   

 
« Last Edit: June 03, 2016, 06:02:09 AM by disc_valve »

Offline disc_valve

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BS175 - Known serial numbers
« Reply #24 on: May 05, 2011, 06:38:23 AM »
Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web.


BS175      Manufacture started in July 1965 (Dual Twin)
                early 1967 (Hurricane)

(Total of 35,400 BS175s built)

Year   Month   Code   Serial
1965   July   16 S   
   Aug   16 T   00338; 00675
   Sept   16 U   00810; 01264
   Oct   16 V   02077; 02229
   Nov   16 W   02813; 02913
   Dec   16 Z   03010; 03187


Year   Month   Code   Serial
1966   Jan   16 A   03736; 04340
   Feb   16 B   04739; 05743
   Mar   16 C   06227; 06355
   Apr   16 D   07020: 08328
   May   16 E   08892; 08920
   June   16 F   10289; 11768
   July   16 G   11761; 12466
   Aug   16 H   13583; 14588
   Sept   16 I   14833; 15908
   Oct   16 J   16424: 18154
   Nov   16 K   18343; 19555
   Dec   16 L   20324; 22256


Year   Month   Code   Serial
1967   Jan   16 M   22448; 23900
   Feb   16 N   
   Mar   16 O   26121; 27401; 27766
   Apr   16 P   28878, 29061
   May   16 Q   
   June   16 R   29655; 31816
   July   16 S   32387; 32400
   Aug   16 T   32454
   Sept   16 U   
   Oct   16 V   32608; 32688   
   Nov   16 W   
   Dec   16 Z   

I have seen a few frames with serial numbers up above 37000, which exceeds the number of BS175s built. These are early model BS200 frames, presumably usiing up the surplus stock of frames originally  intended for use on BS175's.
« Last Edit: June 02, 2016, 06:08:00 AM by disc_valve »

Offline disc_valve

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BS200 - Known serial numbers
« Reply #25 on: May 05, 2011, 06:39:38 AM »
Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web.

BS200 RS / SS   Manufacture started in late 1968

(Total of 7800 BS200s built)

Year   Month   Code   Serial
1968   July   23 G   
   Aug   23 H   
   Sept   23 I   00131; 00346
   Oct   23 J   
   Nov   23 K   
   Dec   23 L   00675: 01207


Year   Month   Code   Serial
1969   Jan   23 M   01275; 01650
   Feb   23 N   
   Mar   23 O   02004: 02695
   Apr   23 P   
   May   23 Q   
   June   23 R   
   July   23 S   
   Aug   23 T   
   Sept   23 U   
   Oct   23 V   
   Nov   23 W   
   Dec   23 Z   


Year   Month   Code   Serial
1970   Jan   23 A   02810: 03732
   Feb   23 B   04262
   Mar   23 C   
   Apr   23 D   
   May   23 E   
   June   23 F   
   July   23 G   
   Aug   23 H   
   Sept   23 I   
   Oct   23 J   
   Nov   23 K   
   Dec   23 L   

 


Year   Month   Code   Serial
1971   Jan   23 M   05802   
   Feb   23 N   06123
   Mar   23 O   
   Apr   23 P   
   May   23 Q   06572
   June   23 R   
   July   23 S   
   Aug   23 T   
   Sept   23 U   
   Oct   23 V   07599 ???
   Nov   23 W   
   Dec   23 Z   


I'm not 100% sure about the serial "23V 07599". I originally had it noted in my list as "23V 10599", but that serial far exceeds the BS200 production run, which I believe was around 7800 bikes. I've made an educated guess that this serial was mis-read from the plate on the bike, and "7599" seems to fit in nicely with other figures.
« Last Edit: March 23, 2016, 05:59:15 AM by disc_valve »

Offline disc_valve

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BS350 - known serial numbers
« Reply #26 on: May 05, 2011, 06:40:37 AM »
Here is the full list I have of known serials, taken from bikes I've actually seen and those I've seen for sale on the web.

BS350 GTR / GTO   Manufacture started in June 1967

(Total of 10,200 BS350s built)

Year   Month   Code   Serial
1967   June   21 R   00244; 00576
   July   21 S   00853; 01374
   Aug   21 T   01667; 02045; 02662
   Sept   21 U   02957; 03983
   Oct   21 V   04000; 04667
   Nov   21 W   
   Dec   21 Z   04858: 04912


Year   Month   Code   Serial
1968   Jan   21 A   
   Feb   21 B   
   Mar   21C   05107
   Apr   21 D   05121
   May   21 E   05455
   June   21 F   05710; 06316
   July   21 G   06419; 06756
   Aug   21 H   
   Sept   21 I   
   Oct   21 J   
   Nov   21 K   
   Dec   21 L   


Year   Month   Code   Serial
1969   Jan   21 M   
   Feb   21 N   06800 **
   Mar   21 O   
   Apr   21 P   
   May   21 Q   
   June   21 R   
   July   21 S   
   Aug   21 T   
   Sept   21 U   
   Oct   21 V   
   Nov   21 W   06962; 07523
   Dec   21 Z   

 

Year   Month   Code   Serial
1970   Jan   21 A   
   Feb   21 B   
   Mar   21C   
   Apr   12 D   
   May   21 E   
   June   21 F   
   July   21 G   
   Aug   21 H   
   Sept   21 I   
   Oct   21 J   
   Nov   21 K   
   Dec   21 L   08476; 08753
 

Year   Month   Code   Serial
1971   Jan   21 M   
   Feb   21 N   08994: 09250
   Mar   21 O   09327, 09471
   Apr   21 P   
   May   21 Q   
   June   21 R


Serial number 6800 was taken from a Dealer Service Letter describing mods to the Carburettor Float Pivots on the production line. It mentioned that all bikes from "21..06800" would be fitted with the modified carbs. The serial didn't include the month code, but the Service Letter was dated February 1969 and so I originally guessed at "21N" (i.e. February 69) for ths serial. BS350s were built in discrete batches, and it is lokely that the service letter was issued while the 350 production line was closed down, and refers to carb mods to be made from the start of the next production batch. Thus I now suspect that 21..6800 hadn't been built at that time, and probably was the first of the production batch built at the end of 1969 - which would probably make it 21V6800 or 21W6800 (Oct or Nov '69) - unless, of course someone out there knows different!  Thanks to Brian the Brit for spotting this one.
    
« Last Edit: May 31, 2016, 09:41:44 AM by disc_valve »

Offline reed

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Re: Serial number ID guide by Graham Weeks
« Reply #27 on: May 05, 2011, 09:07:11 PM »
Graham
Thanks for information on serial number guide.
And we are still looking into the Bridgestone book
For you.
All the best.
Steve.

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Re: Serial number ID guide by Graham Weeks
« Reply #28 on: August 28, 2011, 11:01:42 AM »
> I have read the artical on frame and engine number ID,but still cant
> figger out the year of my 200cc bridgestone,can you help.
> 23 K 04859.(*23*... BS 200 Mach 2 "RS" and "SS" ) made in november????????
> Regards Paddy

Offline bsforever

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Re: Serial number ID guide by Graham Weeks
« Reply #29 on: August 28, 2011, 10:48:16 PM »
November, 1970 from what i can see.

Offline disc_valve

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Re: Serial number ID guide by Graham Weeks
« Reply #30 on: September 02, 2011, 12:03:58 PM »
Hi,

Yes, your bike, serial number 23 K 04859, was built in November 1970.

"04859" lies between two known serial numbers "3732" (23 A - Jan 1970) and "6572" (23Q - May 1971). The only "K" month in the middil is November - hence November 1970.

Graham Weeks

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Re: Serial number ID guide by Graham Weeks
« Reply #31 on: March 19, 2012, 01:41:48 AM »
Here is a new one for you to add. from my yet to be restored sport 100. last rego was in 1974, been under the house ever since

Frame KO 033776

Serail # 20 Roo 4137

Offline RayK

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Re: Serial number ID guide by Graham Weeks
« Reply #32 on: March 19, 2012, 03:20:41 AM »
Welcome to the site another Aussie. Coxy and I are keen BS fans. Keep in touch.
RayK

I traded a 1968 Blue BS 100 Sport for a new Hodaka 100B+ in 1972-73 at Maypow Motors Parramatta. Is it a coincidence?

Here is a photo of said bike

http://bridgestonemotorcycleparts.com/index.php?action=gallery;sa=view;id=334
« Last Edit: March 19, 2012, 04:47:01 AM by RayK »
BS 175DT, BS 50 Sport x 2, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail, BS100 Sport.

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Re: Serial number ID guide by Graham Weeks
« Reply #33 on: July 04, 2012, 04:54:44 PM »
You can add my BS 50 sport to your list, the frame serial number is 13A029371
Which should make it a '66 even though it's titled 1970 (the year of sale or reconstructed title)

Offline disc_valve

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Re: Serial number ID guide by Graham Weeks
« Reply #34 on: July 05, 2012, 08:27:03 AM »
Your 50 Sport serial is now added to the list - Many thanks.

Graham

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Re: Serial number ID guide by Graham Weeks
« Reply #35 on: July 05, 2012, 08:40:49 AM »
Graham, here's a couple GTO's you can also add ........

21W06962
21W07032
Confucius say... "Better to have Bridgestone than Kidneystone"

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Re: Serial number ID guide by Graham Weeks
« Reply #36 on: July 05, 2012, 10:03:32 AM »
The frame that my SR175 racer came with is a 200. The one I race is a 175. I also have a donor 200 roller.

x-racer 200 frame       23I-00131    1968
current 175 racer        16T-00617    1965
200 donor                  23B-04262    1970


paul

Offline coxy

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Re: Serial number ID guide by Graham Weeks
« Reply #37 on: July 05, 2012, 03:54:07 PM »
Ray k can you remember the first year that the 175 came to oz  as it turns out my serial number is 16d07020 which is 1966 i know that this bike was last registered in  Queensland in 1976 so it has to be an original oz import? if was 1966  that bs started importation this bike would have to be one of the first to arrive here.
p.s
thanks Graham your numbers are fantastic cheers.

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Re: Serial number ID guide by Graham Weeks
« Reply #38 on: July 06, 2012, 05:14:25 AM »
Coxy
I know that there were 50s and 90s imported into Victoria from 1966, as for 175s ???
In NSW I think the first imports of BS bikes were by McCulloch in 1967. However, I stand to be corrected on this if anyone else knows.

Ray K
BS 175DT, BS 50 Sport x 2, BS 90 Mountain x 3, BS 90 Deluxe, BS 90 Sport x2, Chibi, BS 60 Sport, BS 90 Trail, BS100 Sport.

Offline bs90tank

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Re: Serial number ID guide by Graham Weeks
« Reply #39 on: October 25, 2012, 02:16:50 PM »
Hello, Here is another number to ad.

12 D 001650 rivet plate BS 90
12 D 001646 engine number
KD 002592  number on frame behind gas tank

I am new...feel free to look at my pics provided on my post.
I suppose my bike is April 64 what about the date?
Thanks
“To announce that there must be no criticism of the president, or that we are to stand by the president, right or wrong, is not only unpatriotic and servile, but is morally treasonable to the American public.”
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