Frame Shock Mount Detail

[andym]

I'm restoring a '77 3CL with the vertical shock mount and am considering converting to the forward shock mount (believe it looks better, however the vertical is more 'old school' hence the 'considering' part).

However I don't have access to a newer frame with the forward mount points so don't have anything to copy from -- would anyone have (or be able to put together) a set of detail photos of the mount points and ideally measurements/etc so I can look to make the change.

Many Thanks
Andy

 

[jlo]

Here is a picture of my 1977 3CL (#5264), the frame has both the vertical and the forward positions.

 

[drikko]

Wouldn't you need a slightly different rate spring?

 

[bazzee]

Wouldn't you need a slightly different rate spring?

The forward mount will reduce the effective spring rate slightly. Likely not enough to require a harder spring. Aftermarket suspension manufacturers seem to specify the same rear shocks for 1000cc and 1200cc lavs irrespective of when they were made.

Cheers,

bazzee

 

[sfcpiet]

The suspension is actually far more compliant and comfortable with the shocks mounted in the forward position, especially if original Ceriani or Koni/Ikon units are fitted.  The length differential is too small to worry about.

piet