BRP uses a 1 piece core on the 3" wide and a 2 piece core for the 4" wide wheel using nylon6.
They are a small service 2 brother operation that hand build their wheels one at a time. They came to esk8con 25 to evaluate their esk8 race wheel and continue to work on options and improvements for it. The testing and progress continues on and I like try these guys have.
Comments and suggestions are always appreciated and discussed in our dialog between SRB and BRP.
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Back here again with no answer.
Is it safe to assume they get tossed?
Also how often are switches falling off boards and sending them flying into objects? I think I saw a board do something similar that at esk8con to estalita? Or was that something else?
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Aluminum hubs contain the bearings, that each tire bolts to.
The tire itself is a couple different materials. A black plastic hub/rim that bolts to the aluminum hub. Foam is bonded to the plastic. Then the grippy rubber is bonded to the foam.
Yeah, pretty much. All of us BRP riders have a pile of BRPs that are basically toast. Not saying we like it, but it’s reality.
That said- I feel the need to add that every failure that I’ve seen/had has been relatively mild, not as catastrophic as a lockup or anything. They’re more akin to a flat tire.
They typically let you know 30~60 seconds before they fail. Typically with progressive delamination(vibration) or rapidly deteriorating grip. Not great, but also not terrible.
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Oh, yes! You’re entirely correct, thankyou. Got my pictures mixed up, this is a picture of crash damage.
Actually, now that I remember, I was behind him so I’ve got footage of the crash! Board hit the dirt and tumbled like nothing else. Crash at 0:10
was too large to upload directly so had to upload as an unlisted youtube video
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Swapping to APS
I spend the whole day Wednesday swapping my rear bushing from Krank 87a to APS 90a. Took about 6 hours.
Stripping the hanger went relatively smoothly, until I noticed that my Hym was damaged. I’ve been feeling a slight looseness in the rear the past few months… this would explain what I was feeling.
Sigh. Off to the bin with yee
Got a new Hanger from @Mobiusray (thanks!)
Also, he recently got a new lathe, which he let me borrow (double thanks!). While I had the hanger off my board, I wanted to machine flat ~10mm of threads for reasons
Not the best, but good enough.
Chattered like crazy. In hindsight, should’ve used the tail stock.
After doing that work, I proceeded to mangle the threads while putting on bushing nuts 
I think what happened was a small chip came off the slot, which then snowballed as more and more of the thread got torn up as I went down, introducing more chips, etc.
Reassembly took another hour or two, but was uneventful
You can see the flat section I layth’d between the motor mount and wheel bearing.
Going to get a proof of concept working, then I’ll share what’s going on here 
i2g Night
First time on track with all APS feels incredible. Should’ve done this so much earlier, I feel way faster and more confident. I can make toeside turns! Woot.
Looking forward to racing the setup at Apex next week for Full Send Racing.
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Glad to see you have changed to our latest carrier spherical.
Its been a year since we ditched the composite carrier and switched to the chrome on chrome teflon injected unit.
You will find smooth precise action and long service from it.
I also like the APS action with the chrome spherical.
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Yeesh that’s pretty fucking scary
Glad I retired mine aswell
2 stage?
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2 stage isn’t really needed for reachers imo, definitely not at 16S
Naw, I want more REEEE per mile.
Give @Dinnye and me a bit to cook 
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@tuckjohn now that Makerx released a 2G300 controller. Any thoughts on updating your build with that?
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It’s 2x single G300s in one alu case. Does look neater and the smaller overall form factor is nice. Exact same electronics though (which is a good thing)
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Don’t think it’d be possible, even if I wanted to burn $1200
- The rear wedge on the V5 has a tube going up the middle of the backside to support it. The G300s are mounted on either side of it. If I replaced them with a 2G300, it wouldn’t be able to straddle the post anymore. And there’s no room to mount the esc on top of the post (very tight clearances already)
- The front G300s are mounted facing eachother, not side-by size (so the 2G300 wouldn’t be a drop-in replacement).
- all new esc’s is pricy for no benefit (as @Dinnye said)
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Also, while I’m here, cross-posting this thread! Ankle wreacher is the only board with my TITS, so there’s lots of overlap.
Moving forward, I’m going to be putting TITS-specific hardware/software development over there. This thread will be used for Ankle-Wreacher specific stuff.
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Raced at Full Send Racing this past weekend at Apex.
I’m like… really good at getting 4th place.
Editing together a POV cut right now, super excited to share it.
also, x-posting some debugging.
TLDR; likely broken megan’s GPS module
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Here’s a chart of my tire temps across the pro final.
Took about a lap to get up to temperature, then I started struggling with temps around lap three (~400s)
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As in tires heat up too much or not enough?
Overheating and loosing grip. Also, very close to loosing integrity… iirc the internal foam of BRPs starts having structural problems around ~80C(180F). I eased off and started babying my tires after lap 3~4 to try and (try) and keep the internal temperature down so I didn’t have a mid-race delamination.
After the race, the surface of the tires aren’t being cooled by airflow anymore(duh), so all the heat on the inside of the tire moves to the surface (which is why the hottest temperatures are from after the race)
You can see the internal temperature on my Front Right tire was getting very toasty.
Causes of the problem include sub-par setup of;
- Board power distribution
- Board turning setup (Front/rear ratio)
- Tire size/compounds
- Riding skill/style (Weight distribution)
And none of this is helped by being 230lb, riding a 70lb board 
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