Thanks to Rancell, I got tagged on a post of some suspension going cheap in WA.
I'm not sure the guy knew what he had as it was just listed as 'Bitubo Suspension'.
Turns out that I'd seen the guy on the grid at ASBK and he had been swapping paint with Marshy all series.
He's endorsed by K-Tech and the Bitubo came on a bike he'd bought, so he just wanted rid of it.
Turns out it's TOP OF THE LINE WSBK spec Bitubo ECH29 Gas Karts and an XXF31 V2 Mono Shock!!

I've just taken delivery of it and it looks flippin mint!!









Since I bought it, I've been in touch with Bitubo HQ who have been very helpful in hooking me up with base settings for oil height, shock length and even clicker settings to get me started. SUPER stoked with this find and I can't wait to get them fitted up!!