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curt

Jul 16, 2014 - 6:45PM

Re: no frame number

hi henk, its not been on ebay. will send you a pic. curt

email (option): sosalancurtis@aol.com

Ron Pier

Jul 16, 2014 - 11:04PM

Re: no frame number

Weren't the early frames (KM) stamped at the very bottom of the front down tube? Otherwise how can anyone tell what year it is Ron

email (option): ronpier@talk21.com

Henk Joore

Jul 17, 2014 - 8:56AM

Re: no frame number

Early M model frame have a different saddle lug, on the early frame it's part of the rear tank mount bracket while the late frames have a small cast lug brazed just in front of the tank mount bracket. As far as I know all K and early W year models have the saddle lug that is part of the tank mount.

Henk

email (option): ahum@quicknet.nl

curt

Jul 17, 2014 - 10:14AM

Re: no frame number

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pics of the said frame.

email (option): sosalancurtis@aol.com

baza57

Jul 17, 2014 - 11:06AM

Re: no frame number

some frames from BSA were supplied unstamped for competition purposes.

Duncan Fairley

Jul 17, 2014 - 1:11PM

Re: no frame number

My B31 has a frame the same as that. I can only presume someone got hold of an M20 frame, then re-stamped it at some time. It had competition plates on when I got it, so it probably started life as a plunger. Stamped up as a ZB31, from '48. I'm actually after a rigid B31 rear frame if anyone's got one to swap, I'd like to make it all B31.

email (option): duncanfairley@btinternet.com