RaceBoi: Tito Duality, Tomiboi Hellhound, 21S4P, 4WD 6395+6385, BN straight cuts, 9x3.5s, D100S (formerly RaceBro)

I am super excited to share my latest creation with you all. Still in progress but I expect to finish it this week. The build thread will be a rolling build thread. I will put all the progress into the replies and update the first post once the build is finished.

The reason this board exists, is because I want a jack of all trades board so to speak. Something that performs while racing. Something that performs out in the woods. Something that has way too much power. Something that looks kinda decent. I wanted to stay on the mountainboard platform, as I am very comfortable with Matrix IIs on riptide bushings. I do wish for more power and speed than my previous mountainboard, so I am selling most of those parts to a friend and I am building a new board basically.

Specs:

  • My trusty 2021 stiff Haero Bro deck. It’s my favourite deck by a long shot.
  • Keeping the F5 bindings and heels from the previous board too.
  • BN310 channel trucks with an M1-AT straight cut 5.2 gear drive
  • MBS Rockstar Pro II XL rims - with a 3D printed widening spacer
  • 9x3.5 slick gokart tyres for the ultimate asphalt grip and a set of 9x3.5 turf tyres for offroad grip
  • 21S4P P42A pack built by myself
  • The most overkill fast charger that you can imagine - adjustable voltage and current up to 92.4V 34A
  • MakerX D100S with a small external heatsink, pointing down towards the bottom of the enclosure
  • Placed inside a pelican storm im2050
  • Reacher 6395 v6 175KV motors @180A hopefully
  • GT2E remote because I wanted to try trigger and because fuck Flispky and their VX1s that tried to kill me
  • Some clever cable management ideas stolen from @Shadowfax’s 4wd lacroix, more on that later


I went a little overboard with the speed to be honest, as I am mostly racing short track. Don’t think I will push it past 40mph but we will see. Got a bit carried away by the HV trend. 16k RPM at no load 4.2V per cell. Once I have my CNC up and running I’m probably going to machine a set of (straight cut, steel) gear drives somewhere around 1:7-1:8. 1.5kN would be sweeeeeet. That won’t happen until the summer though, probably. And 1kN is still very nice until then.

This is also the fastest build that I’ve done so far. Started shopping mid January, will have the last parts in by tomorrow. I started building last Friday, and I expect to finish the board this Thursday.

Here’s some phase 1 after completion pictures

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