marzocchi strada piggyback shocks dimensions

troutbishop

troutbishop

Hero member
Location
Worcestershire England
Hi i have been taking the paint off the shocks on my 74 3C special and noticed the two lugs that the adjuster ring sits on look to have been have been cut down for some reason does any one know the distance from the center of the lower mount bolt to the top of the adjuster lug.
                                                  cheers Kev
 
Kev If nobody has an answer there's a set on leboncoin.fr, http://www.leboncoin.fr/equipement_moto/193728762.htm?ca=1_s, no price listed so make him a decent offer then you'll have 2 sets of originals, hopefully enough non worn out bits for one complete set. At their best they don't work very well compared to modern ones, you do know this :D, but if originality is your thing...

Ken
 
Hi Ken not too fussed about originality on this one as its a special but do like period ish parts, these shocks are as ok as they ever were ??? just wondered why some one would cut the lugs down? the lower mounts on the swinging arm are further back than the standard arm like on some of the SFC 750s.
                                      cheers Kev
 
Kev I wonder if someone was going for an attempt at slightly more progressive action for the rear suspension by shifting the mounts? That was a very popular modification in the mid-70s, the Nips started moving their top shock mounts further and further forward each year and chassis tuners started doing the same thing, on dirt bikes anyway. At least they did in Brisbane, I had mates with the most diabolical things done to their rear subframes to increase suspension travel.
Maybe the DPO was trying to get a few more mm of travel from the shocks by cutting a bit off the tops of the lugs? Or trying a different set of (slightly longer) springs?

Ken
 
Thanks Dennis that was quick they have altered distance on mine to 75mm.

Ken the springs are progressively wound ones with a free length of 250mm this is an early upright shock frame so i suppose they moved the lower mount back instead of the top mount forward like the later triple frames.     
                                                  Kev
 
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