Radium SR125 Wheels - USA Stock

The whole package tends to make you WANT to go off-road, the more you do the more they respond.. nuts

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You gotta find some gravel or loose dirt and give some handbrakie slides a go!

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The MAD 125mm wheels is more of a comfy cruising roll over most things kind of wheel with high efficiency. No urethane wheel will ever beat a rubber sheen when it comes to cornering grip.

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Hoping to get a set of these & just want to make sure I understand the bearing setup right to see if what I’m thinking is possible.

In this case I would be wanting to run these on boardnamics 10/8 stepped axles hopefully interchangeably with the AT hubs/pulleys on there now and it seems like if I understand correctly - with the bolt on radium pulley - they could use the stepped axle if I put a 10x28 bearing in the inner, then a spacer (would this be 10mm or a different length?), and a 8x28 in the outer bearing position?

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I am starting to feel how i felt when i saw everyone buying Dualities… FOMO! might have to buy a set of SR125 just to have them sit there wait for me until i am finished with a build specifically made for them :eyes:

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What is the length of both axle sections?

The 10mm part is about 19.5mm and the 8mm part is 35mm with about 10mm threaded

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So these would be your two options depending on which spacers you use. And you can just use the included 10mm axle spacers for 8mm axle as the NSK 28-8 bearings have quite a thick inner race. You’d probably want to play with shims/spacers for the narrow bearing spacing option to get that inner bearing sitting fully on the 10mm portion.

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Thanks - I really appreciate the diagram! Looks like I’ll have a good amount room to work with on the first option to get the pulleys to line up the same place as my pneumatic ones, which I was hoping for.

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Kami Juins shares his thoughts on the medium compound SR125s, test fits the wheels on an Acedeck and Trampa setup, and test rides them on a 3 link build:

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Is this new 6.2 video update for all dv6+ or just for Mach dv6+?

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It’s a motor configuration specific to the 6485 205kv Radium motors with 12S DV6s.

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Oh boy couldn’t resist, just ordered the combo deal for medium yellows :hugs:

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And bearings to go with for Mach One🤗

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Send me this file privately, friend!

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Reference drawing with narrow spacing for those unsure about compatibility with their axle length and motor mount position.

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@Tony_Stark Picking between the two available Duros : just wanted to run something by - would you say Medium vs Hard would make a significant difference feel-wise for street riding on rough/cracked streets at slow/mid speed? Medium seemed obvious to me at first but then I was thinking they might get chunked up easier on edges and should go Hard for durability - I won’t be going faster than around 20mph so the race-style turn grippiness isn’t as much of a factor for me.

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Definitely medium for that. Main advantages of the hards is range and a little more high speed stability.

Even the soft have been insanely durable in our testing. Our wheels are TOO durable, it’s a bad business model :sweat_smile:

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Can’t wait to try the softs on this

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I’ve been riding the hard wheels that came with my Mach One, the streets in my area vary from smooth to semi-rough. Wonder if going with the soft wheels would be a notable improvement? Is there any listing of the duro from hard to soft wheels?