my bsa

[shane84]

hi i have a mini bike with a bsa motor in it mod frame i can not find out what era ist from i have some numbers but i can not find out  what year  :-/

[L.A.B.]

So, what are the numbers?

[shane84]

well i have two diffrent numbers i am not sure if thay are original ak256 an 58013yd

[L.A.B.]

58013 YD *could* be a 1951 Bantam model? http://www.bsaoc.demon.co.uk/1951-60.html

Can you describe the engine?

Is it a two stroke or four stroke?

 Does the engine look like anything shown in the BSA pictures section? http://www.vintagebike.co.uk/Bike%20Directories/BSA%20Bikes/BSA%20index.htm

Bantam
http://www.vintagebike.co.uk/Bike%20Directories/BSA%20Bikes/pages/BSA%20Bantam.htm

[shane84]

it is two stroke with clutch it looks like that bantam how much are thay worth can i get a clutch still thanks man

[L.A.B.]

how much are thay worth can i get a clutch

Not really worth big money as there were thousands of them made between 1948 and 1971.
Info:
http://www.mistgreen.com/

But there are spares available, unfortunately you have not said where you live, so that makes recommending any spares supplier in your area (or country) rather difficult.