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The Shop
I have a Neken SFS upper triple clamp from a Husky 350 that I'd like to try on this bike - so I was wondering if I could just buy your lower gen 2 triple clamp?
And along the same lines, I 'd like to run a honda steering damper like you do - so could I possible purchase one of your weld-on mounts? And if I brought the bike in, could you folks weld it on for me? (I'm not to far away in Temecula)
Thanks
He also did the powervalve actuator cover in Sniper Grey to match the hard anodized covers we're putting on the engine (that cover couldn't be anodized as it's magnesium).
I'm hoping to get the gears and other parts out for WPC treatment soon so I can get this engine put back together!
https://www.vitalmx.com/forums/Bike-Builds,46/Luxon-MX-Husky-FC350-Buil…
More to come soon!
Bringing this back to life... We've been slammed for many months and it's been hard to find the time to keep going on this build, but I really want to get this done soon! I finally got around to wrapping up some key pieces, so it should go fairly quickly at this point.
I whipped up some rear shock spring preload adjusters a while back as I dislike the plastic adjuster that comes stock. These just replace the plastic part, but function in the same way. Unfortunately, I forgot to take a photo of the milling operation, so all you get are the lathe portions:
These were then electropolished and clear anodized. No sense using a color anodize as these will get beat up over time from the adjustments, so the clear anodize will help hide any scratches.
Here's the rear shock fully assembled, just waiting on a spring now. We were offering coating services a while back and I did the various coatings on this shock - DLC shaft, Kyokote shock body and reservoir, and various blue and black anodized parts. We no longer offer coating services as I wanted to focus more on hard parts, but Brian at N2D suspension offers them now if anyone is interested.
This shock uses the MX Tech tank reservoir with a "hybrid" piston. The piston has a membrane integrated into it that's supposed to give the best of both the bladder style and the piston style.
And of course, N2D valved this using their specs to match our linkage knuckle.
Pit Row
"Hybrid Piston" : The SKF one or MX Tech's own version of it ?
That's some purty eye candy Billy.
Looks amazing Billy, just like all the Luxon products!! 👍
It's an SKF one that fits their Tank Reservoir
I've had most of this bike "finished" for quite a while now, it's just been in pieces and some critical things have been missing top put assemblies together. But most everything is here now and I'm making good progress. Next up is the front end:
I had the fork tubes Kyokote coated in black, similar to the shock pieces from a couple posts ago. And the lowers were DLC coated with a digital camo pattern. This was a one-off job and likely the only ones in existence. The coating company did it as a sample for us and after doing it they decided not to even offer it as it was way too much work for them. The pattern is made by masking off areas of the tube then lightly blasting the tube to create the pattern. The masking is removed and then the tubes are coated. The blasting looks rough, but it's actually quite smooth. It's really just enough to diffuse the light and create the textured look rather than affect the roughness (smoothness?) of the tubes.
Lugs are anodized black and MX-Tech put everything together with their Raven cartridges set up for me. The Raven is a closed cartridge spring conversion; a touch heavier than the AER forks, but still really lightweight. The MX-Tech Blackjack forks are actually on the bike in the background, so it will be interesting to compare the two.
And, of course, this is held on the bike with our triple clamps. This is the Gen2 bottom clamp and a "Gen2.5" top clamp that uses the similar material layout to what out Gen3 clamps will be, but still uses the Gen2 style bar mounts. And the bar mounts are holding the Renthal FB36 bars mentioned many posts ago.
Looks like components for a spaceship.
Since that 350 is done now (& looks great BTW) I wanted to give this one a lil bump for ya.
My "goal" now is to finish my 3 year old build thread before you finish this one LoL
In all seriousness though Billy keep up the cool work you are doing over there!
Wow great thread thanks!
Have you got any weight info on plastics kits? I saw you comment on another thread about the front fender. Is the stock plastic made by Polisport? I thought I'd seen a logo on stock KTM plastics back in 2009 but I thought it was UFO or Acerbis.
I've heard the Cycra stadium plates cover more area while saving weight over OEM.
I'll be going with the Michelin tyres and schwalbe tubes, that's awesome bang for the $
Reviving this yet again... Things have been stupid busy on our end, so progress on this build pretty much stopped right after the last update. I guess that's a good thing since things are growing for the business and we've released a bunch of new products, but it hasn't been great for this build!
The biggest hurdle to progress on this is the engine. It was completely apart on a table; fully split cases, transmission all apart, etc. and the time to re-assemble was just not in the cards. But things have calmed down a bit lately, and I was sick of looking at the pile of parts in the corner, so I just put it back together! Lots of updates coming soon.
Since I started this build, KTM came out with a new generation of bike in 2023. But I wasn't impressed as the two strokes all went to EFI and the 150 wasn't even offered. But for comparison, the 125 gained 11.5 pounds over the previous generation bike. That's absolutely massive and a huge step backwards from weight alone. I'd argue the chassis change in general was a step backwards too and EFI has been tough for a lot of people too. For 2025, though, the 150 is back. But it's still EFI and despite some chassis changes to lower weight, the bikes are still a lot heavier than the 2019-2022 generation. So I think we're still on a much better platform than all the new gen bikes.
Here are some engine reassembly photos. Not a ton to discuss here, just putting together things that have been discussed in the previous pages. Lots of titanium bolts, coated/anodized parts, etc. We're using V-Force reeds as I've had good luck with them in the past and the stock setup is pretty bad.
And I'm trying out the F1 Moto powervalve arms. The groove is a little smoother than stock, but I suspect the kink in the stock arms is intentional. The F1 arms are pretty crappy looking compared to stock overall. The stock arms are nicely polished. Regardless, if they don't work well, it's an easy switch to put it back to stock.
Speaking of that, the powervalve design seems pretty terrible and very tight. I suspect it loosens up a bunch at operating temperatures, but on the bench it feels terrible and is VERY hard to turn, even after polishing all the edges and checking to make sure there's no interference anywhere. It's just a poor design. Not much we can do about that, unfortunately.
When the bike was still together, I marked up the battery box/airbox where there were features that aren't needed. There's not much electronics on these two strokes, but they share the same part as the four strokes. And there's a lot of parts that just aren't needed for this bike. 10 minutes with a Dremel tool resulted in a more open airbox and nearly 1/4 pound lost for free.
Post a reply to: Luxon 150SX Build - First start, various assembly details