BSA M24 parts for sale and wanted

Please let me know if you have any pre-war M series bikes or parts for sale or wanted.
Call back regularly as I update the page.

M24 Parts for sale: See below for further details

1938 Oil tank mounting rubber grommets (Set of 4)

1939 KM24 Silencer...one only...see below 

M24 Cylinder Head Gaskets

M24 Engine Gaskets

1938 M24 cylinder barrels - NEW UK made

M24 82mm Cylinder Liners

M24 Rear Brake drums

Oil tank caps - all 37/38/39 M-series - New repro.  

 1939 M23/M24 Rear Number plates - New repro. 

1939 KM23/24 Fuel tank badges - New repro.   

M24 82mm STD Pistons ...….SOLD OUT

Gearbox parts - all 37/38/39 M-series  



 1938 Oil tank mounting grommets

New from original pattern. Will also fit all other 1937-8 B- & M-series bikes.
BSA part Nos 66-8324 or 66-8326

Set of 4 rubber grommets £12 - Available from Jeff Hunter (the rubber man) at jeffalanhunter@aol.com  He does all sorts of rubber parts including footrest rubbers, tank kneegrips, handlebar grips etc


1939 KM24 Silencer

Made by Armours using original pattern. Excellent quality chrome plating.     £120 plus postage

BSA M24 Cylinder Head Gaskets

Made to original pattern                                                                    £30 each plus postage


M24 Engine Gaskets

I have for sale various new gaskets for the M24 engine which have been unavailable for years. These are top quality, made in England from original patterns.
 Prices: Rocker box gaskets - 1 set of 3 (two of No4 & one of No5)  £12       
              Cylinder base gasket ( No2)                           £3.50
              Tappet cover gasket   (No3)                         £2.50
              Rocker box cover gasket  (No1)                 £3.00                         
All including UK postage. Postage cost covers any number of gaskets.
 Postage to Europe £1.50, Rest of the world £2.50.
 Other gaskets, such as timing cover, KM24 tappet cover & the large cork primary case seal are available from UK BSA dealers. 

New 1938 JM24 type CYLINDER BARRELS

with small 2 screw tappet cover.
See photos below
Standard 82mm bore
Excellent quality, cast and machined in Birmingham UK
£1500 including postage

M24 Cylinder Liners

New British made liner for Standard 82mm bore piston

 £150 including world wide postage


M24 Rear Brake Drums

UK Manufacture.  Correct ribbed 42T type Part No 66-6107
NOW IN STOCK AGAIN 30/9/2020

 £100 each including UK postage    


BSA M24 Oil Tank Caps

Available from Nigel Berry, in Victoria, Australia. They are made with the correct size thread and fit perfectly. Contact  Nigel on notewell@optusnet.com.au for further information


NEW 1939 M-series REAR NUMBER PLATE/TAIL LIGHT MOUNT

These will fit all 1939 BSA M20/21, M23 and M24, and B-series bikes. BSA Part Number 65-6919 or 65-6803.

UK made in mild steel using an original 1939 pattern, with correct curved top mounting plate.                                Will need two 1/4in holes drilled in top mounting to suit your rear mudguard, 3 holes for Lucas stop/tail light and paint.  

Selling at cost - £150 each plus postage 


1939 KM23 & KM24 Tank Badges

New, excellent quality, well finished.                          
Made in Germany in brass or aluminium. To suit Gold Star or Silver Star

Contact Hubert Runte at h.runte@gmx.de for more information and pictures.


Gearbox parts - all 37/38/39 M-series

I have a good stock of parts for pre-war M-series gearboxes - please Email me with your requirements