JUMPINATOR II | swappable batteries | lightweight MTB | HAERO | MBS | APEX

This is the first time I’ve seen someone else mention this! I mostly see people saying the gas pedals or wide foot pads help with turning and I find that counterintuitive to my experiences. The markone deck I grabbed is super narrow but my turns almost doubled compared to my previous deck. I’m constantly turning on the edge of my board and it feels great to monkey grip the board with my feet. Been considering the haero a lot but your review has made me reconsider if I’d like that wide foot area. The DW2 feels good to me still but I haven’t given it a test ride yet.

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Niiiice I’m not alone :joy:

I also never heard someone else complaining about this before. But I’m also quite sure that I would not like gas pedals. I have to say that my hi top sk8 shoes have flexible soles so I can grab the edge, with boots this wouldn’t be possible. But also with normal spring trucks I can’t do tight turns, just with elastomer dampers or MatrixII.

:rofl:

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You are the most similarly minded emtb rider on this forum. I don’t think I’ve ever disagreed with one of your diagnoses. Springs return me back too much, I can’t hold a turn safely on them.

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I find it really hard to explain but I think it comes down to how you actually distribute your weight to the edge or gaspedal.

Personally, I hate having my foot hang over the edge of a board, so no matter how narrow the board is, I will position my feet so they are fully located on the board and distribute weight accordingly.

Having a wider dexk for me allows a more comfortable footing and more effective turnability.

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I received the ramp but could only shoot some shitty pics before work today

First of all it’s damn light, I can lift it with 1 finger and definitely don’t need to mount wheels, I’m sure it’s easy to hold during riding. The weight is 4.5kg. It’s not that rigid and definitely needs some extra work to be reliable. I was even afraid to stand on it because it bends. I’m thinking about a wooden frame on bottom or something plus some support in the middle area. Otherwise it would crack if the ramp is not laying on a perfectly flat surface.

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Carbon fibre :muscle:

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Any hints how to distribute the weight better to the edge?

So you change the angle right?
I always ride 0° :man_shrugging:

Sounds good but I have almost zero experience.
So my first noob question, is there any epoxy existing which doesn’t stink like hell? I have no workshop or garden and in the past after using epoxy my flat was contaminated for hours.

Also I am thinking about building a bigger portable ramp out of wood. The idea was to use a foldable framework combined with a stiff curved wood. So let’s say the wood is 12mm thick and 2m long and only supported on 2 points. Any idea how much reinforcement (fibre) is needed so it doesn’t bend or crack?

products-ricky1

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so i’m going off the experience of riding only scrub and trampa decks. i have found that the extra width of the scrub decks cause them to flex on toe and heel side (twisting) when turning,making the turns wider. and with the trampa deck it seems to put more force into the trucks when turning. (i also like to grip the edge of the deck with my toes)

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I will try make a video for you showing how I do it tomorrow :+1: even if you ride 0/0 the same leaning technique will work. Its all in the knees.

Epoxy resin doean’t really smell much at all bro, polyester resin is the devil tho.

Carbon fibre would be perfect to strengthen that ramp while keeping the weight to a minimum :ok_hand:

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Just visited dirt park after work to check conditions there after weeks of raining, it’s even worse than I thought. Damn no idea how long it takes until this massive lake is gone :face_with_raised_eyebrow:

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Finally I could work on the promised video about full throttle forward vs. reverse. I spent the last hours and it was a PIA to find the according data in the Vesc-Tool log. Everytime you zoom in the time resets to zero, it is a nightmare. I have to get a metr pro. Moreover the screen shots were too small for the video and I had no nerves to redo it so here the video without data.

Full throttle forward (2 examples)
1-24
2-15

Full throttle reverse (2 examples)
2-42
2-00

As you can see the curves look different, reverse is quite jumpy. But the amps are about the same even a bit less in reverse.

In the video reverse doesn’t look faster. It could be that the burnouts are because of too much weight on the rear foot. Also on acceleration the weight automatically shifts to the rear foot where no drivetrain is :thinking: Also riding switch feels different. I’m not sure anymore if there is really more power in reverse.

But then why @glyphiks experiences this with 4WD :thinking: I mean the shifted weight on the rear foot makes no difference in reverse with 4WD. I’m confused :crazy_face:

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Most likely there is no power difference between forward and reverse. You just have more grip when going forward thanks to favourable weight transfer that puts more contact pressure between the tires and the road.

No there is a definite power difference.

My board will do wheelies in reverse no problems. It has the power it should have.

In forward it is sluggish off the line.

I tried both uphill on grass cos its the only way i can stay on the board at full throttle from takeoff, and the difference was clear as day

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It might be worth switching the remote for a different one and seeing if it does the same. (just throwing some ideas out there)

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I’ve tried it with a different hoyt puck and it was the same. Same receiver, but i doubt that would make a difference

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Due to rain the skate park is the only rideable area right now so I had some sessions there. I had time to focus on learning new tricks and moves. For example in the half pipe I did my first 180"s with grab (not pretty yet) and normal jumping with front truck grab.

Also I practiced a lot in reverse like climbing and jump off the grindbox. I can’t believe how high I can lift the rear with motors, maybe 40cm or even more. That’s the reason why I can barely move my right foot and also my whole body is sore. I would like to try sliding a rail but I’m afraid it gonna hurt badly.

I have some marks from skate park

the edges :crazy_face:

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I just experienced exactly the same after I did add concave to one of my trampa decks lately.
Surprised me as I thought the concave will give me better control over the deck, but after riding my second trampa without concave to compare I really think I need my feet to hang over the edges for the right control while turning.

Edit: I see, I’m not the only one :joy:

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I will say, I was not a big fan of the big Lacroix deck I tried. I had to fully reposition my feet to turn but chalked it up to my weight and shock blocks being different

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I like my concave. :joy::wink:

Concave ≠ deck width. You may live.

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