151 Re: K75kforkurz Thu May 02, 2019 6:07 pm
Suzi Q
Life time member
Here's the shock too. It's a WP unit from a KTM something-or-other. I've used them before on the Madass, and before that on my K100. Back then it was a 'needs must' choice because my Koni Dial-a-Ride (never any good for me) had died (actually, it was killed) and I needed a cheap replacement. These WP units seem to be very cheap on Ebay. The best thing about them is the outstanding quality, plus they're rebuildable and very versatile. They take a standard 2 1/4" coilover spring (I use rates around 250 lb/in) and have adjustable comp and rebound, plus about a mile of threaded adjustment for ride height on the cylinder body. You can vary the oil weight (standard is 2.5 wt) to get the shock exactly right for your own needs. Plus, if you replace the nitrogen filler plug with a Schrader valve you can fill it to the required 10 bar or so with a mountain bike shock pump, using good old air, drawn free from the atmosphere. They seem to come in all sorts of combinations of cylinder length and piston rod length, and you can fit gazillions of spacers under the piston to give any sort of overall length and stroke length you want. The 'special' tools that you need to strip them aren't that special and can easily be made.
The only real hurdle is that you have to make up a rod end bottom mounting to replace the clevis that they usually always have (WP list a rod end alternative on their fiches, but it's probs v. expensive)
The only real hurdle is that you have to make up a rod end bottom mounting to replace the clevis that they usually always have (WP list a rod end alternative on their fiches, but it's probs v. expensive)
Last edited by chris846 on Thu May 02, 2019 6:17 pm; edited 2 times in total (Reason for editing : illiterate)