Fork stanchion sizes

[PaulieK]

Hi all, On stripping down the forks on my A10 spitfire scrambler, I have discovered a strange set up, the fork stanchions are 30+7/8 inches long (780mm) the are the same diameter (OD 1+1/4 inches ) as the tubes on an M series and the bushes are the same, also between the top of the spring and the lower yoke (triple tree) there is a 8 inch steel tube and a large washer at either end of the steel tube?
According to the BSA parts books ,A series fork stanchions (89-5061) are 574mm long , was this done to increase ground clearance for racing or is it just a botch job from a previous time or what.
Thanks
Paul

[JulianS]

Previous owner modification. At one time there was a fashion for some to fit extended forks.

Tube 89 5061 is listed as 22.5 inches long.

There was a suggested fork modification published in 1959 by California importer Hap Alzina to improve the forks for off road but did not involve extended tubes, see below.

[PaulieK]

Thanks Julian, good to know this, going forward will carry on an fit standard A10 stanchions.

[RichardL]

Best part of this is "oil up to the bottom of the 'C' on a coke bottle."

Richard L.

[muskrat]

G'day Paul.
The Double dampers are a must. See https://www.a7a10.net/forum/index.php?topic=2895.0 to make your own.
Cheers