Can anyone ID this shock? I've had no luck finding it on the interwebs. Spring preload is adjustable and the piggyback reservoir has a Schrader valve as well as a 10-position adjuster knob on it. My mountain bike has an air/oil Fox shock and you set the shock air pressure for the rider weight and I surmise it's the same here. When I checked it with a tire pressure gauge, it was reading about 25 lbs. I didn't want to mess with the settings without knowing the limits of the reservoir. I've adjusted the spring preload and fiddled with the knob to get an idea but I really don't like fiddling around in the dark with the suspension since my skin pays for any miscalculations.

[url=White Brothers]http://www.ebay.com/sch/White-Brothers-Vintage-Historic-Motorcycle-Parts/35558/bn_589705/i.html[/url]

Not sure if anything on here you need, but it is a start. Your shock really does exist.

W.P.  (White Power but it was politicaly incorrect so was changed to White Bros) Made in Netherlands or Austria. There are 2 factories.
Good shock I had one on my K100LT and it was a bit harsh on the ride but good all the same.
The schrader valve is for nitrogen for damping purposes dont put air in there it will ruin the seals as they dont get on well with Oxygen. If it only has 25psi then it needs regasing.
http://www.wp-group.com/en/home/
http://www.cycleworld.com/2015/04/22/wp-factory-dutch-suspension-manufacturer-tour/

RicK G wrote:W.P.  (White Power but it was politicaly incorrect so was changed to White Bros)

I want to strangle somebody...