Marzocchi 350NCR Ti...
 

Marzocchi 350NCR Ti cartridge rebuild

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my Marzocchi 350ncr Ti forks dont  seem to move much so finally I took them apart.

I emptied the cartridge and tried filling it but the oil came out of the bottom of the cartridge body. It looks like its the U-Ring (41) that needs replacing. Any idea of its size? A quick measure shows 8.2/12.2/4.5 but its still on the shaft so thats probably wrong. Would it be 8x14x4.6?

And where could I get one?

https://postimg.cc/w3bD8b5j

https://postimg.cc/nX5HnBR7

 
Posted : 30/07/2025 7:26 pm
Posts: 1419
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Try Dr Zocchi for parts.

 
Posted : 30/07/2025 9:15 pm
kelvin reacted
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Trying! again!

Is this seal NBR or polyurethane , single acting seal, symmetrical, UN/USH/YA or what?

8x14x4? If its 4.6, would 4mm be OK to use instead?

 

 
Posted : 01/08/2025 12:07 pm