Marzocchi triple clamps 38mm

B

Basketcase

Senior member
I have separately acquired Marzocchi 38mm top & bottom triple clamps. Hopefully to try and speed up the steering on my SF2.

The top is a new genuine Ducati 900 GTS item and the stem diameter is 25mm.

The lower one is used and of unknown origin. It has a 26mm stem diameter.

I am sure the lower is a Marzocchi by comparing with Ducati parts photos and the steering stop lugs are different to my Cerianis on the SF2.

What is the story behind different size Marzocchi stems?

Rob
 
Generally it pays to get triple clamps as a set, thereby you can be certain that offset is the same.
From memory some Ducatis used unusual headstem bearing sizes, not sure what you have ended up with, but as long as you can get bearings to suit your inner and outer sizes it doesn?t matter anyway.
Flatter clamps will give more trail and make your bike more stable, not more nimble. How much do you understand this stuff?
http://bikearama.com/theory/motorcycle-rake-trail-explained/
From memory Laverda Ceri (non-parallel) clamps had 65mm offset and Jota Marzo had 45mm. I have some ex Ducati (860 or something) Ceriani ones also with 45mm.
 
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