sign me in for trampa truck testing 
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I just picked up a Lacroix with MBS Matrix II - stoked to learn more about this project.
Let me know if you’re looking for more test riders.
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Little birdie told me that the Riptide family is experiencing some health related struggles at the moment. Wishing the team lots of love, and hoping everyone feels better soon 
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Sorry for my absence, this has truly been a shitstorm. I hurt my back Kayaking just after Father’s day, when the Chiropractor route and he made it worse by somehow enraging the sciatic nerve in my left lag causing the quad to be in a knot. It has been locking up for over 3 weeks and forces me into a horizontal position for hours. Today at 10:00AM, this is have been the longest I have gone without it locking up…there is hope. Simultaneously I dodged a Covid bullet where everyone else at the July 4th event got it that had not had it before - sheer luck but one in our household did get it but managed to shake it off after 10 days domestic isolation.
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Back problems suck so much. Wishing a speedy recovery my dude. 
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Anyone here remember the Revolution channel trucks for longboards? They utilized a floating hanger in a slot against a pivot bolt and allowed the hanger to raise and fall about an inch, away from a progressive-rate cam shaped rubber profile. Your body weight would naturally center the trucks, and while they had like a 15 degree angle to them, their swing was more like 45 degrees at full extension. I’d love to convert such a design to a mountainboard capable truck with decently wide axles.
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Pics or link?
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Photos of my set… The company who designed and sold these closed up shop several years ago and it’s a damn shame. Best high speed stability and carve ability I’ve ever ridden with literally zero tension.
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I thought those were the Other Planet trucks
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They are! Last I heard production stopped a while back. They also never made a wide-axle hanger.
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If anyone were to build a mountainboard truck using this cam design I can guarantee you’d have a killer design. That said, ever consider a progressive-rate cam profile on the top of your mono-block bushing? IE: radius the edges slightly or even put a chamfer?
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Now that I think about it, there was another truck design that uses a single bushing… uses a hollow tube for an axle… The Flame DirtPipe and Flame Reactor both use a single bushing. And they have multiple widths of block to allow for differences in response and resistance.
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Unfortunately I don’t think there’s really any way to extend this bushing philosophy to Other Planets.
Because OPs have that raising center, it makes compressing a bushing rather difficult.
Instead we’re forced to use tension, which honestly I like a lot better in terms of results, but theres a lot of challenges in making it work.
This is what I’ve ended up with recently that’s been working well:
Its actually incredible that ninjaflex TPU has enough rebound to make this work.
Making it as simple as just a big block of urethane, while also keeping all of the truck articulation, is sort of the dream.
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That reminds me of the time I printed HTD5 belts in TPU to check which tooth count I’d need. The belts themselves technically drove my board, but would stretch too much and skip at anything over very light throttle. Tried putting them on a scale and hanging off of them (160 lbs dry) and they stretched but wouldn’t break.
Why not have tension cards built in as a “wear surface” either side of the hanger?
You mean like, using the shims as resistance?
Urethane shims.
That’s an idea. They’d be thin enough to stretch for the whole range of motion.
But the hanger wouldn’t be as well captured at the extremes of the deck tip.
Its taking both components that wear and need to be replaced, and combining them into one part.
And it would be a great way to ensure that they do get replaced when they need it, so people aren’t riding janky trucks that aren’t working right.
I’ll give that a go.
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Would be cool to see it work if the idea is worth it. Worst-case you add some higher density slider material in there for the shims if it binds too much or wants to start wobbling off-axis due to the compressibility of urethane
I sorta forgot about these. Any new news on these?
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