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Re: High or Low frame

So as a summary the term "low frame" has nothing to do with the section of the frame. It is instead that the chassis sits lower, this is achieved by less camber in the rear springs with a small change to the front nose piece to compensate for the caster change that the rear lowering would cause.

So apart from the nose piece the frames are practically the same.

It is a pity that Bob's explanation was not correct as it seemed to have more going for it.

Cheers

Mark
from wet and cold Aus

Location: Rokeby, Victoria, Australia

Re: High or Low frame

The front crossmember is certainly diferent. The low frame version has a dip in the middle where the ball is for the radius rods to the axle. No doubt to cater for the different 'angle of dangle' of the front axle as noted by ians measurement of the nose piece.

Location: not north wales any more

Re: High or Low frame

There are lot's of subtle and a few not so subtle differences, as Henry said above very little is identical to what came before.

Location: NZ

Re: High or Low frame

From the A7CA Archive, Spare Parts List 1218A shows both high and low frame chassis in detail on pages 55, 56,57 and 58.

As with most Spares lists there are a few oddities but in general this shows the differences (it doesn't note the different nosepiece angles)

The cards may give more information.

http://archive.a7ca.org/wp-content/uploads/PL_1218A.pdf

Cheers, Tony.

Location: Melbourne, Victoria, Australia.

Re: High or Low frame

So under the heading Low Frame you have Front Spring Bracket BR155, under heading Low and High Frame you have Front Spring Bracket BR47 with no Front Spring Bracket list individually for the low frame. I suppose this could be a typo?

The plot thickens.



Location: Rokeby, Victoria, Australia

Re: High or Low frame

Hi Mark,

"As with most Spares lists there are a few oddities"

From earlier Spares Lists for the then standard chassis which later became designated the 'high frame', BR 47 is the correct original front bracket.

Cheers, Tony.

Location: Melbourne, Victoria, Australia.