Feynman

We're about to move across the country and I'm trying to reduce my stuff. So I thought I'd see if anyone might be interested in buying my KS S18? I probably have less than 50 miles on it, but will have to check. I completely re-worked the suspension bearing system with some glass-reinforced nylon bushings I designed and 3D printed (see thread on this forum). The stock shock has been replaced with a Fox (feels great and I'm 250lb). I took the pads off because of my giant calves, but will include the pads, original suspension parts (some of the stock bearings fell apart when removed), original shock, et. al. Will ship in the original box, or pick up in the Houston area.

These are the washers I used. However, keep in mind that I 3D printed custom bushings to replace the bearings, so my build will likely be different than yours. That said, the posts and bolts above should work regardless. If you want to see my whole process, look at the Suspension Overhaul thread. If you want a set of bushings, let me know; I think I have at least one extra complete set and can print more as needed. 7. M6 Stainless Flat Washers (4 total) -- https://www.amazon.com/gp/product/B009OK2AZK/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1 $9.52 8. 0.5" ID x 0.75" OD x 1/32" thick PTFE washers (6 total) -- https://www.ebay.com/itm/1-2-Washer-3-4-OD-1-32-thk-PTFE-Plastic-Insulating-Fastener-Z78070/392789577456?ssPageName=STRK%3AMEBIDX%3AIT&var=661675992196&_trksid=p2057872.m2749.l2649 $9.99 9. 0.25" ID x 0.562" OD x 0.062" thick PTFE washers (6 total) -- https://www.amazon.com/gp/product/B006GHXY90/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 $14.52

FWIW I replaced all my suspension bolts and posts with these: 1. 15mm L x M6 Cap Bolts (8 total) -- https://www.amazon.com/gp/product/B07L56Z4SY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 $6.89 2. 12mm L x M6 Button Head Bolts (4 total) -- https://www.belmetric.com/6mm-c-563_581_584_606/sb6x10ss-button-allen-socket-head-stainless-p-3278.html $0.64 3. 20mm L x 10mm OD x M6 round coupler (4 total) -- https://www.amazon.com/gp/product/B07SQLZ568/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1 $7.99 4. 25mm L x 10mm OD x M6 round coupler (2 total) -- https://www.amazon.com/Coupling-Connector-Threaded-Adapter-Stainless/dp/B07X9W4DS1/ref=sr_1_1?dchild=1&keywords=m6+x+25+coupling&qid=1600211214&s=industrial&sr=1-1 $6.99

I've been so busy with work that I haven't had a chance to get it all back together yet. Hopefully this weekend!

Finally reassembling. I went with 'Colonial Red'

I completely agree. The amount of engineering that went into this thing is impressive. Reminiscent of the Z10, but even sexier

Very nice! I'm adding that to my list!

To be fair, I'd rather be riding the wheel than fixing it

You're right, sorry. The blocks go with the pedal hangers. But you do have an interesting thought there - maybe wait until installing the pedal hangers to tighten the motor mounts at the same time? My wheel hasn't changed in a few days. I realized that the shafts are rotating along with the arms in the slider and top holes, so my thrust bearing there are doing effectively nothing. They won't hurt anything, but it's not a great design. I guess I should just leave it as is and get the wheel back together.

I'm curious if the measurement varies as you move up the rails? (i.e. are they parallel?) Did you have the block in place when you tightened them?

True, that could be an internal flat washer. All I can say is that it doesn't look like the blue plastic/rubber seals on the original bearings. If it IS a flat washer they've stuck in there, it's likely defeating any bearing it's sitting next to by binding both races to it.

Those sure look like bushings to me. Not that we can see much from the outside.

Pocket B, with new bushing design, fully tightened. My Movie 1.mp4

You added grease nipples?!? That's bad ass!