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Messages - L.A.B.

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1606
British Bikes / Re: Bent Frame - who can help?
« on: October 18, 2005, 10:16:21 PM »
Chris

With this type of question it does help a lot if you could say where you live?

I'm guessing you may live in the UK?

But you could be in the USA/Canada/Aus/NZ/anywhere?

Also knowing North/South/East/West can help?  

1607
British Bikes / Re: Help with BSA
« on: September 30, 2005, 05:06:28 PM »
Engine prefix 'A50D' would seem to identify the model as a 1965 'Cyclone'  http://www.acay.com.au/~shanep/catalogs/1965/65c-5.jpg  

The frame prefix I would expect to be 'A50B' not 'D',
the 'RR' I can find no information about.

http://www.bsaoc.demon.co.uk/post1960.html


Possibly the BSA Owners Club could give you more information.

http://www.bsaoc.demon.co.uk/

1608
British Bikes / Re: Period Competition Photos BSA '49-69
« on: October 11, 2005, 05:19:25 PM »
Peter,
I'm not sure if the 'Isle of Man museum' you are referring to is Murray's Motorcycle Museum as this has now closed, and the contents of which are in the process of being sold off?
http://www.iomguide.com/motorcyclemuseum.php

1609
British Bikes / Re: 1961 matchless
« on: October 09, 2005, 06:00:11 PM »
You should be able to get what you need here:

http://www.amalcarburettors.co.uk/

1610
British Bikes / Re: Is this a A50 or A65?
« on: August 03, 2005, 02:13:55 AM »
Factory manual and parts book copies (and other BSA books) UK:
http://brucemain-smith.com/frames.html>Photocopies =B>Manufacturer = BSA>Date Range = 1958 - 1967.

Haynes manual:
http://www.motolit.com/bsatwina50a6.html

Clymer manual:
http://www.themotorbookstore.com/vinbritstree.html

1611
British Bikes / Re: Is this a A50 or A65?
« on: August 02, 2005, 01:37:30 AM »
There are some differences in wheel sizes according to the models and years but 18" front/18" rear is probably correct, most later models did have 19" wheels.
The A50 front brake parts do seem to be different to A65 though?

-------------------------------------------------------

Further research shows that the '63 A50 had a 7" diameter front drum brake, (A65 = 8").

1612
British Bikes / Re: Is this a A50 or A65?
« on: August 01, 2005, 06:21:25 AM »
17 tooth front sprocket would have been the original part for A50 ( A65 = 20 tooth).
Rear sprocket is the same for both.

A50 carb = 376/
A65 carb = 389/

1613
British Bikes / Re: Is this a A50 or A65?
« on: August 01, 2005, 05:19:13 AM »
Quote
Are there any other differences that one might note?
A50 and A65 are basically identical machines apart from cylinder head, carb/s, (what carb/s is/are fitted?) barrel and pistons, gearing and possibly wheels?  etc.
Checking through a parts book seems to show that about 95% of parts are the same for both models, some wheel part numbers are different but without knowing the exact year I cannot be more precise.

You could remove the cylinder head and measure the bores?


1614
British Bikes / Re: Is this a A50 or A65?
« on: August 01, 2005, 03:59:53 AM »
Todd,
The crankcases would appear to be A50 items!
http://www.bsaoc.demon.co.uk/post1960.html
BUT... this could mean a number of things.

The bike may have been originally built as an A65 but at some point A50 crankcases or more parts have been fitted?
 (a large number of parts are common to both models - including the crankcases)
Or:
It's an A50!
Or:
The bike was originally built as an A50 and later converted to A65 spec?
(would technically still be an A50 I suppose?)


Are you sure that the '2' = (A502) isn't a letter rather than a number?
What is the frame number prefix? Later A65 frame numbers had A65 prefix, any idea of the year?

If you email your photo direct to Nigel I'm sure he can post it up for you?

1615
British Bikes / Re: need help,looking for photos and info Thunderb
« on: September 27, 2005, 06:01:24 AM »
Yes I do have some illustrations if you e-mail me (click on the letter icon to the left of this message) I will send them to you.
Perhaps your bike has some earlier parts fitted or it may be a 1964 model?  

1616
British Bikes / Re: need help,looking for photos and info Thunderb
« on: September 27, 2005, 05:08:12 AM »
Quote
skirt on my bike is like the same as the one on the 3TA of 1964

Yes the 1965 6T skirt would be the same type, also the 1965 model had a normal front mudguard, not the valanced type.

1617
British Bikes / Re: need help,looking for photos and info Thunderb
« on: September 26, 2005, 07:03:30 PM »
The  21 (350cc) and 5TA (500) engines are fairly similar units but the 650 versions look different which should easily be seen from photos (have you looked in the 'Pictures' section?).
 http://www.vintagebike.co.uk/Bike%20Directories/Triumph%20Bikes/Triumph%20Index.htm

Also the engine should be stamped with the model number = 3TA (21) - 5TA - 6T (Thunderbird) etc.

The engine number of the 1965 350/500 versions should have an 'H' prefix, 650 versions a 'DU' prefix.

1618
British Bikes / Re: BSA bantam??
« on: September 21, 2005, 11:37:28 PM »
I posted a link above where I suspect you should get the parts you need (maybe not all cycle parts)?
Did you try them all?
http://www.mistgreen.com/spares.htm
C&D Autos has a website
Also Bantam John   +44 1908 579799

I do not know of anywhere in the USA but I will check.
-----------------------------------------------------------

British Only seem to have Bantam parts:
http://www.britishonly.com/default.asp


1619
British Bikes / Re: BSA bantam??
« on: September 21, 2005, 03:43:41 PM »
A D3 should be 148cc so should have a standard cylinder bore size of 57mm.

1620
British Bikes / Re: BSA bantam??
« on: September 20, 2005, 10:44:06 PM »
I think I have given the wrong YEAR informaton as I think this should be 1956-7 NOT 1954..Sorry!
But D3 correct.

What exactly are you unsure about?



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