Glad you got that solved.
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The âsuper rattleâ shown in the video is definitely wrong (potentially in more ways that one), but it is not problem with tolerances. Itâs an assembly problem. If the king pin washer on the nut side is not properly centered the king pin cannot be tightened properly. The following pics perhaps explain it best.
Weâve trained our assembly guys on this but obviously need to follow up again. The good news is itâs easy to fix - just loosen your king pin nut a little, center that washer and hold it in place while you re-tighten king pin. That should cinch it all up (gaps or no gaps). No washers required.
Ultimately, the fact this assembly error can happen at all means the design isnât perfect. Iâm handling this whole area differently in the next iteration of the Matrix truck (still a ways off). In the meantime, centered washers should give you the precision youâre expecting. Try it and let me know what you find.
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Thank you very much for this hint Joel. To be honest I was a bit skepitical but tried it right now aaaaaaand it works, I canât believe it 
. @Andy87 maybe this also explains your loose washer. Iâm gonna order the Pro bushings anyway (when theâre back in stock) as the angle is more straight at the hanger but thatâs only because I try to have it perfect but your described method works fine! Also without your help I wouldnât know about the 3mm flange Pro bushings.
Thatâs normal because they are mounted to the hanger but it could be that it looks strange because the hanger is upside down in the video. Or do you mean the play? There was also a gap which can be closed by tightening the bolts for the bushings, no problem. Also the size can vary a bit.
I have to migrate the dirt machine thread to this forum but for now I post the following here:
I had to drill holes into the baseplate to be able to mount the trucks on my Trampa deck (previous model). Bolted a Trampa baseplate to the Matrix II.
I used a brass tube (OD=6mm ID=5mm) plus a 5mm wood drill bit and a hammer to make a small center hole first. The aluminium is on the soft side so that worked almost too good.
2mm pre-drilled, then 3,5mm
For the 5mm hole I put the brass tube on the drill bit to center it inside the 6mm hole of the Trampa baseplate. One pre-drilled hole was off center but with this method I forced the final hole to the center.
Then final 5,5mm holes and it was done.
During taking pics I realized how shiny this surface is and how difficult not be visible. Ok here some oil-slick selfies 
After having this unexpected fun with the trucks it was time to mount.
Before
After
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You made my day with those selfies
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Time for an update, unfortunately it was not possible to ride at dirt park the last weeks because of wet and muddy conditions. Iâm afraid that wonât change the next weeks.
So I had 3 sessions at skate park and made some progress especially with clearing the coping of the smaller ramps in different ways. Then it was time to ride in the halfpipe.
As you can see it was quite wet but rideable. What I noticed is that when touching or sliding the coping with the deck it feels a bit unstable because of the concave. Sometimes I almost lose balance which never happened with the flat Trampa deck.
Then I did many 180âs trying to slightly increase height and also some rolling 180âs with the rear wheels on the ground.
At the end I did a lazy rotation with 100° only and started to slide down the ramp with the wet wheels, suddenly the board slipped away and my head knocked hard on the halfpipe. Thanks to helmet nothing happened but I was shocked how fast I went down, I couldnât do anything, not even move my arms.
The last session was painful. I increased the height in the halfpipe further. My main fear was always to land on the coping which is very bad so in theory you just have to pull the board enough to land on the transition. I was confident and jumping higher and higher, on the highest jump I landed on the coping which lead to a crazy fall to the flat area, damn that was embarrassing in front of scooter kids with their parents, that hurt more than the pain from impact.
Then I did some 180âs during riding on grass just to get a better feeling for the stiff deck. Then I had the glorious idea to do that on concrete as well and failed. Since 3 days I can barely move my right arm and hope itâs getting better within the next days but I donât see me riding the next 2-4 weeks 
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Hope you get better soon!
How is the reaction of the people at the skatepark in general? I always feel a bit uncomfortable in public areas because everybody is looking and I donât know if they hate me or if they think itâs cool
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It really does put pressure on you lol.
Went to the skate park and had like 5 scooter kids following me around. Wasnât ideal and I had no room so I just left.
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Quite positive so far, especially the kids are very interested. But of course all eyes are on you when you enter a skate park but after 1-2 minutes they got used to it. Best is a skate park without people, usually I donât ride when there are too much people, too dangerous and annoying for everyone.
I got used to the looking people and comments everywhere I ride. I would say it doesnât matter what other people think as long as you have fun .
In general I would say there is 80-90% positive feedback. Last time a very old couple came when I rode in the halfpipe and I thought theyâll yell at me. They were very friendly and wanted to know how this board works. Once an old lady came yelling I destroy all the grass around the skate park 
.
yeah thatâs not good
Once I was riding at BMX track when suddenly about 40-50 kids entered with 2 teachers playing football, frisbee and so on on the track. WTF this is no playgound. I was slowly riding the track and told all kids to watch out and hide the track. Maybe I was too friendly because they didnât listen and the teachers didnât care. Some of the kids were running in front and back of me, others had fun to block the track and jump away in the last moment. After some rounds I gave up and left the track, the kids won.
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When and where can I get those etoxx wheels?
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Had the same issue - pure quality production. 
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BMS Simultaneous or Split
I took a long break to let my shoulder heal, 2 weeks ago I had the first ride after a while. It was a bit wet in dirt park but still funny. Changed to red shockblocks for better stability but miss the carvy orange ones. Good thing is that it is very easy and quick to swap them whenever I want.
Due to corona virus life is different now. They locked all playgrounds or sports venues. Most people and kids must stay at home, I keep working and commute with esk8. At work they check temperature before entering the area and Iâm not allowed to use public transport.
So today I wanted to have sume fun and go jumping despite curfew but it was not that easy.
It was my first ride with this board on BMX track and I was surprised how high I can jump compared to my heavy Trampa, next time I want to record some footage. The range of the 12s 5Ah Lipo is so ridicolous short that I think about an upgrade or second battery. 90% of my rides end with a walk of shame back home.
Discharge/charge same port
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Any tips on 180° on a quarter pipe? I comically tried and failed a few times at the indoor bike park
Also, how hard/easy is it to not use the heel straps while theyâre on your board? I really want them for jumping but not so much for general cruising.
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Hey Rich
Glad to hear you healed up. The difference from the trampa deck is quite profound isnât it? As soon as I switched to the bro I can no longer go back to the holy pro for jumping and stuff. I will turn the trampa into a 4WD now and ride the bro for the light one
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First of all the bigger the quarter pipe the better, no joke. IMO the most dangerous is the coping because when you jump too high the chance is big that you land with the rear wheels at the edge of fear which leads to nasty falls, guess why I know .
Jumping higher than the coping is above my level yet and it hurted so my actual motivation is slim but one day I want to succeed. I lifted the board as much as I could away from the quarterpipe/coping but it didnât work well a few times.
Personally I would prefer a huuuuuuuge quarter pipe because then you can choose the point where you do the 180° according to the speed and not because the coping is coming. Also itâs less dangerous, a small quarterpipe is not the best for first practice. Also a hard pipe like in skate park is not good for beginning.
What I did first is to practice on a natural dirt quarter pipe which is best because falling mostly doesnât hurt. The easiest way for 180° on a quarter pipe is to wait until you lose the speed, then push the board down, lift it up and bend the knees during the rotation. This way gravity takes you down and you can concentrate on the 180° itself if you know what I mean. Depending on the steepness, speed and height it can help when you rotate the shoulder/arms/upper body first in the opposite direction of the rotation before take off and then in the direction of the rotation, but before you rotate the board.
Jesus christ itâs not easy to explain things in english hope you understand at least 50% of what I wrote 
You can position them above the bindings for cruising if you like.
If I would ride without heelstraps I would hurt myself . With heelstraps there are no limits in riding or terrain but it needs some practice first before you fall in everlasting love 
. If I forget please remind me to post hints about riding with heelstraps, need to gather some useful infos first (from ole forum).
Itâs funny that the MBS F5 bindings feel very different on these 2 boards because the hole pattern is quite different.
Thanks bro, injured my shoulders 3 times within the last 18 months, my arm is not 100% good but good enough 
Maybe next time I go for x-ray, usually I avoid hospitals. Next week my bones are 42 years old which I can feel when falling. Maybe I should stop jumping with 50 or 60? When Iâm 70 years old I start to ride on flat terrain only and with 80 I need to mount a chair on the board. End of the storyâŚ
Yeah itâs like day and night. It is very interesting to compare both boards on the same tracks/terrain. Both have their pro and cons.
I was thinking about the bro, too. My wallet is not amused. Do you have a medium flex or stiff deck and whatâs your weight? If you could describe the flex/pop it woud be very helpful 
. When you push the deck down and use the flex for jumping does it give you some energy?
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Thatâs a video from this month riding at the BMX track with the Trampa. Now I need a video with the Jumpinator as well for comparison to see if the difference ist as huge as it felt today.
I did about 10 180° today and succeeded 6 or 7 
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I have the stiff version and there is only the smallest amount of pop in the deck, almost nothing. My weight is 105KG. It is a lot lighter and more responsive though so thatâs the trade off. Landings are easier as the deck is really stable with it being low, wide and stiff.
You should try it mate, if you dont like it you will be able to sell it on easily
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I make a extra video for ya. ( mittlere stiffigkeit. Wirst schon sehen 
)
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