I have a 1275 small journal crank that has had the forged number ground off and 12G1392 stamped into it. Is also has EN16B forged onto it. Any ideas what this is out of and is it any good?
Cheers Pete

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A recent study found the average Aussie walks about 900 miles a year
Another study found Aussies drink, on average, 22 gallons of alcohol a year
That means, on average, Australians get about 41 miles per gallon

Kind of makes you proud to be an AUSSIE

Sounds like a small journal 1100S crank but number is not on my book. If cross drilled it's early, if not it's late (just pre-big journal).
It should be tufftrided- rub a file on the webs to check.

ANY Oz small journal 1275 crank, cross drilled or not is a good-`un. Just crack test it.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Yeh it is cross drilled. What does rubbing with a file do?
Cheers Pete

_________________
A recent study found the average Aussie walks about 900 miles a year
Another study found Aussies drink, on average, 22 gallons of alcohol a year
That means, on average, Australians get about 41 miles per gallon

Kind of makes you proud to be an AUSSIE

If you can't file it, it's tufftrided (hardened) same as MK2 S cranks.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Cool, its tufftrided. Just have to save some cash now and take it to Spiro for a once over.
Cheers Pete

_________________
A recent study found the average Aussie walks about 900 miles a year
Another study found Aussies drink, on average, 22 gallons of alcohol a year
That means, on average, Australians get about 41 miles per gallon

Kind of makes you proud to be an AUSSIE