Author Topic: BSA swingarm transmission chart.  (Read 2678 times)

Offline Pollock

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BSA swingarm transmission chart.
« on: 02.11. 2007 02:52 »
I found this in my pics and thought it might be handy to a few.

Offline LJ.

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Re: BSA swingarm transmission chart.
« Reply #1 on: 02.11. 2007 14:19 »

I'll probably not have any use for it, but never the less... Interesting reading. Thank you for posting it.
Ride Safely Lads! LJ.
**********************
1940 BSA M20 500cc Girder/Rigid- (SOLD)
1947 BSA M21 600cc Girder/Rigid-Green
1949 BSA A7   500cc Girder/Plunger Star Twin-(SOLD)
1953 BSA B33  500cc Teles/Plunger-Maroon
1961 BSA A10  650cc Golden Flash-Blue
1961 BSA A10  650cc Golden Flash-Red

Online bsa-bill

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Re: BSA swingarm transmission chart.
« Reply #2 on: 02.11. 2007 19:40 »
This is interesting and solves a little mystery
I'm building up my gearbox and as it has been some weeks since I was last at it, I chose to check the gear positions/ no of teeth against the part book.
The problem came when I got to the first gear on the Layshaft ( 1st gear - nearest the kickstart ?) part number on the parts book diagram is 67-3199, this number is not listed amongst the parts descriptions though and in fact it probably should be part number 42-3097 as in the chart above .

So thanks for that

All the best - Bill
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco