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Fork crossover pipe V65 SP 1984

Julian Sudano

Tuned and Synch'ed
GT Contributor
Joined
Jul 25, 2021
Messages
61
Location
Los Angeles, CA
Does anyone know what the diameter of the black tubing is on this front fork crossover pipe is, if there is any easy source for it, and what it does?

I just found out that mine is missing - guess it breaks with age - and a replacement part comes with the parts (banjos and nuts) that are still on the bike, is about $70.

Thanks!
 

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It's to equalise air pressure when you pump a little air into the fork oil-pneumatic damper units (if they are still working !). Assuming it's the same as mine (V65 Florida pictured); then the nipple to connect the pipe to is about 4.3 mm at the narrowest bit & 5mm ocross the ridge at start. It's hard to measure ID on old tubing but it comes up at around 4mm (6mm OD) & it's quite stiff rubber.

Crossover

The part number is GU19529660 for just the pipe but guessing it's long gone & generic stuff will do.

The settings are for 14 psi (user manual for V65 Florida) & you need to allow 'losses during measuring the pressure' (sort of Shrodingers cat measurement). I had similar on V50 & junked the oil-pneumatic for oil based & replaced springs with progressive ones....it's worth searching for threads about work arounds (or just don't add prelaod air).
 
They are for Paioli fork dampners, same with rear shocks. It's not rubber it's a plastic line. It is used on air shocks.
I used to have those kits in stock till a few years ago sold that stuff to a member here.
I got my stuff from Herdan Corp in PA, doubt Hermy has any left.
 
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