Evan's 1st Mountainboard | The Apex Croix - 4wd atrocity

I had some time this afternoon to modify the @Skyart 3-link extension plate.

First, I drilled out the heim link hole so that I could make the wheelbase for the front axle be an exact mirror of the rear axle.

Then I scribed where the heim/axle would line up against the current holes. Turns out it’s 21mm c2c. This pic also easily shows how much closer the regular HD long link would have been compared to the short link and my new middle position.

So I need to offset the adapter plate by 21mm to pull in the axle by 21mm.

And this is the part that took a lot of time and patience. I really didn’t want to screw this up so I checked and rechecked the progress quite a lot. I also countersunk the the holes for flathead nuts to connect the adapter plate to the 3 link baseplate.


In the end it lined up perfectly and the adapter is perfect now. The wheelbase looks much more normal up front.



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Is it me or those helicals as loud as straight cuts?

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They are indeed loud af

I set the backlash pretty loose on them and they just start screaming once you hit 20mph

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Yeah my jump drives are pretty old now and are insanely loud. I should probably regrease and adjust the backlash. I just hate touching a board that works

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Wheelbase looks too long… i’d be pretty concerned about whether the deck is up to it… i feel like it’d handle nicer if it was shorter too…

Comments from the peanut gallery! :peanuts::peanuts::peanuts:

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I’m not too worried about the deck. It’s more like a loaded bamboo deck in that it has a lot of flex. Maybe eventually it’ll delam but I think it will be ok.

Unfortunately can’t go any shorter on wheelbase and still run 8” tires. I think you could ditch the extension brackets if you were on 6” tires, but then it can’t be ridden off-road anymore. It still turns like a maniac compared to the apex airs that were on there before. I can do tight circles now.

This is the closest thing I have as a before and after pic


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Curious what your axle nut to nut wheelbase is?

I’m using extensions on front and back of a first gen odashi on 3links I built a while back and have a 42.5” wheelbase. Same as my v5.

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Axle to axle wheelbase on the croix is 40.75”

My redember 44 is 39” wheelbase

So the 3-link Croix on 8” is between my 44 and a v5 in length. I think a stock lacroix is probably around 38” axle to axle but I never measured it.

No doubt, it’s a big board

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I bet it feels great though, especially at speed. Nice work.

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I finally gave in and pulled off the extension brackets. Surprisingly, barely any wheelbite in the front and none in back. This will work great, especially when I throw some smaller tires on for racing

Before:

After:



@glyphiks Made me do it…

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More Croix updates.

165mm race tires on now because the MBS T2 tires I was using literally fell apart. You can see where the steel bead came out of the rubber and punctured the tube. They were fun while they lasted.


The length of the board is much more reasonable without the 3-link extension brackets.


I took a file to the deck to remove a small amount that had possible wheelbite at full lean

All done - ready to rip! This is the only board I own now, so it’s my do it all board. Running it @poastoast style - 165mm tires with 4wd. Gotta find some tunnels.

Next update will be the @Evwan @Boardnamics collab straight cuts…. Go grrrrr

@HAIRYMANJACK tagging you here for the heads up on 3-links with no extender brackets :upside_down_face:

@tuckjohn we gotta put these boards head to head again and see how similar they feel now

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How is the axle height to standing platform now that you removed the extensions? How substantial was the change in ride feel?

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Yes, let’s definitely do that sometime

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Standing platform height didn’t change much removing the extension brackets. It maybe raised 1/8” at most. If you think about the brackets, they move the axle up and away from the deck, but they are also 1/2” thick so they act as riser plates too. Those two things offset each other.

The more substantial change in ridefeel is actually in the flex of the deck. The deck was crazy flex before because the brackets added so much leverage to the deck. It has a much more normal amount of flex for a lacroix now.

I’ll get some pics of ride height when I take it out for a spin later.

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That’s awesome you got it to work!! How’s it feeling with a smaller wheelbase?

Ahh makes sense! When I was experimenting with wheelbase extenders on my friend’s build I also found that they need a ton of extension just to offset the extra ride height they inherently add. By the time I got the ride height right the wheelbase was way too long, so I just scrapped that idea.

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Maybe I missed it but how is that cable management done?
Dope grip with a regular piece of grip in the middle?
Or is there any other brand of foam grip tape?

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I used 6mm thick firm EVA foam sheet. It is quite firm and sold for cosplay.

I secured it to the deck with double sided carpet tape and also used a layer on top to secure the grip tape.

It has worked great so far and it’s not that hard to remove if I ever want to re-do it.

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I’ve used this to build out a similar footpad with cable management

https://www.amazon.de/-/en/Double-Sided-Adhesive-Extra-Strong-Square/dp/B09PQH9BW2

While it definitely takes more time to apply, you can use it to form the footpad to how you like it, you can easily add concave or even a W concave with this. In my experience sticks great to the deck.

Also it offers a small amount of extra comfort which is nice.

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