Radium R6 trucks & Thane belts

It’s early days. The carbon cords exceeded the yield strength of the steel cords in static failure testing, and initial real world testing suggests they are a lot quieter and don’t skip even when run very loose.

We still need to put a lot of km’s on them across a range of terrains and situations.

Dylan will be testing high continous load (guess how) and Poast will be riding normally with them which will abuse them in every way possible.

But assuming no major hiccups we can move to production for these pretty quickly.

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Maybe if you thing “every abuse possible” is the idyllic American conditions than sure…

Out here we have ice, grit and dirt, salt water and hills to make DH longboarders cry. Send them to the real world.

I have a pair of motor pulleys handy, if I can get some wheel pulleys made for infinityhubs then I can show you why no belt will survive out here and that’s why this board is intended to use chains.

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… congrats? This is like saying “testing the porsche 911 on track isnt tough enough, you need to take it rock crawling, its clearly not a good car”

No… you’re just trying to discuss an entirely different use case of which belts are not suited to as a whole.

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Okay but this is correct

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Average TS schizo post

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out here i got sand, the pacific ocean, fire, dirt, gravel, rocks, used needles, hills, mountains, balls bigger than your ego, a healthy lack of self preservation, more destinations to ride, and best of all, no one that throws a fit when they’re not given special treatment and lashes it out as geopolitical insults

#realworld

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don’t forget the salt water :joy: because everyone rides in that

Kinda like complaining about what will likely be the best belts out there not being built to handle user error?

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there, fixed it

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Just use chains then.

Anyway let me know if you guys have a specific size request :point_down:

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43 and a half tooth belt.

217.5-5m-15

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I’ll make a 44 tooth and cut one in half just for you :kissing_heart:

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Perfect, because i needed a half-tooth length belt. :innocent:

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Ever considered open gears for the Mach 1? Once you have the Spurs I’ve found them cheaper, better free rolling and easier to maintain than belts.

Not for the way we ride. Open gears would be destroyed pretty quickly.

Considering it for the race version however.

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You have destroyed them? I have to wonder, I’m constantly snapping belts and see pulley wear pretty quickly but I’m yet to wear out a set of Moe’s Spurs.

This is inherent to gear drives in general. Belts need to have a certain level of grip, and therefore they have resistance that needs to be overcome by the pulley. Gears simply don’t share this characteristic, and instead have resistance due to tooth friction, which on spur gears is zero or nearly zero.

We haven’t tested them because it requires using at least 3 gears to get motor clearance which means special motor mounts, and that one set of gears will be rotating with the gears meshing down into eachother on the top side which surely won’t end well given the amount of gravel and offroad riding we do. At times the rear end has a pile of stones half way up the wheel when sliding.

That isn’t even the main concern. Most of our belt damage comes from the outside, especially on 105mm wheels. The low ground clearance has large stones impacting the belt and wheel pulley from underneath which will ruin gears.

I also don’t imagine the shock loads from jumps or the vibration from the gears will help with drivetrain reliability.

There’s reasons we haven’t even bothered to try it.


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