[Technique] Réalisations de Maarten JANSSENS

I am also glad that everything is OK Maarten. My opinion did not wish for any bad luck ,quite the opposite. I have just finished repairing my new Moto3 after a huge crash at Knockhill BSB fortunately my rider was also OK although he did have a very burnt ear after I had spoken to him.

Dave, was it a crash in race 1? I've watched race 2, your bike seems good as well for off road purposes!
Keep it up.

Maarten,


In order to avoid each time you crash to completely rebuilt the rear ally part of the frame (due to footpeg broken bolts), will you change the design of this part to create separate parts that you can change easily or will you stay like today and weld new footpeg bolts each time you crash ?

alextatic a écrit:

Dave, was it a crash in race 1? I've watched race 2, your bike seems good as well for off road purposes!
Keep it up.

Thank you Alextatic for your interest. The bike was crashed on the third lap of first qualifying by young rider going too fast too soon. so no more qualifying only repairs and then the races. So a 6th& 4th was a good result after so much damage. My 6 months of hard work were almost destroyed in a moment. Maarten, If you wish to borrow my young "crash test dummy" to really prove your chassis you are welcome. If you are happy I may even let you keep him !. That win first time out seems a distant memory.

What a bunch of professional!!!! I'm impressed

Maarten so eager to demonstrate the strenght of his creation that he goes as far as crashing to prove he's right and Dave friendly enough to offer his young gun to help Maarten to improve his crash test benchmark

Great reply crazytoon. I am always friendly although sometimes it does not look that way.


I Type & weld with a smile on my face.

ttroncs a écrit:

Maarten,


In order to avoid each time you crash to completely rebuilt the rear ally part of the frame (due to footpeg broken bolts), will you change the design of this part to create separate parts that you can change easily or will you stay like today and weld new footpeg bolts each time you crash ?

Think you didn't understand it! There is nothing we need to weld!
The footpeg broke of but the frame is intact. So I just need to buy a new set of rearsets... I never weld bolts so don't understand what you are saying

Dave Pearce a écrit:

Great reply crazytoon. I am always friendly although sometimes it does not look that way.


I Type & weld with a smile on my face.

I know! No problems!I might even keep him then if you are really that keen ofgiving him away haha.

How good is he in cleaning the workshop?

MJ-Works a écrit:

The footpeg broke of but the frame is intact

The rearsets are the weakest part. Understood.

Sorry Maarten We had a wonderful result at Snetterton BSB Moto3 today so I cannot lend my rider to test your chassis or the footrest hangers Stephane Understood?

Dave Pearce a écrit:

Stephane  Understood?

Yes, I think so.

Dave Pearce a écrit:

Sorry Maarten We had a wonderful result at Snetterton BSB Moto3 today so I cannot lend my rider to test your chassis or the footrest hangers  Stephane  Understood?

Shame on you!

After the first tests I think it might be time to look at the advantages we've seen with this chassis compared to the standard R6 chassis.

I'll give the 3 biggest ones here + some general comments:

1) The first thing you notice is the advantage of the big diet/weight loss on the bike. This means that on circuit zolder and Assen we could keep up with the 1000CC bikes out of every turn to overtake them the next one. Only on the rear straight at Assen we lost contact but regained it under braking.

2) The turn-in is MUCH easier and requiers a lot less input from the rider. This gives more trust going into corners. "Almost no input needed to make it turn" was one of the first remarks of the testrider.

3) Because of the excenter for the swingarm pivot you can choose the amount of anti-squat and adjust to the point that you feel most confident on the bike. The standard R6 is twitchy in the going out of the corners, not giving a lot of trust. This chassis has 12 different settings for anti-squat meaning you can make it react the way YOU like it and we all know that extra confidence in the chassis is what makes you go faster.

What we've also noticed is that with the same driver, suspension, tires and track we had chatter in the front wheel on the standard R6 and we don't have it on my MJ-Works frame. This might be a coincidence since we all know that chatter is a dark art but I think the extra flex in the MJ-Works chassis at the headstock makes it more forgiving.

(!) Don't forget I didn't set out to build a frame to compete in the moto2 world championship. If I'd try to do that then the only people that could ride it would have been world championship contenders (!)

The goals was to make a frame for the hobby- and semi-proffesional rider to get more confidence and better lap times because of that extra confidence (more predictable handling of the chassis) + the loss of weight. A superior R6 engine in a chassis that gives the confidence of a CBR600...
Looking at the tests we've done now on Zolder and Assen I can say that the goals hev been reached!

Now to get 2 of these chassis sold...If you know someone that's interested --> make him/her contact me.

GRTZ

MJ

Maarten I have been building a new bike around the same time as you so I have been following your progress with respectful interest. I have been pleasantly surprised with the results so far in the series my bike is racing in. However the bike isn't remotely finished in terms of development and I would not dream of offering one for sale. You on the other hand after just a couple of track days seem to think the job is finished offering big improvements over the standard bike. If this is correct then you must be the new chassis Messiah and I can only envy your superior knowledge.

Dave Pearce a écrit:

Maarten I have been building a new bike around the same time as you so I have been following your progress with respectful interest. I have been pleasantly surprised with the results so far in the series my bike is racing in. However the bike isn't remotely finished in terms of development and I would not dream of offering one for sale. You on the other hand after just a couple of track days seem to think the job is finished offering big improvements over the standard bike. If this is correct then you must be the new chassis Messiah and I can only envy your superior knowledge.

Dave,

Let's not go there. Please read what I wrote above about what the goal is with this bike.

The job is never finished by the way, we both know this! I still make changes to my supermono after 3 years...

There is however a point where I need to start offering the chassis (planning wise and financially) but there is a difference between the time when I offer it and when it would be finished for someone that's interested in it. it would be built after this season and after all the testing.

In that meantime we keep on testing. Until now it has been 4 very bussy trackdays on 2 tracks, in different conditions. This month there will be 2 more on a 3th track (Zandvoort) and this will continue for the rest of this season.

In total we've planned 18 days on 3 different brands of tyres, on 5 different tracks and with 3 different good riders (!!) THIS IS THE MAXIMUM I CAN DO + I'm convinced that if it works good after those test that it has a very good level of performance.
Finetuning has to be done with suspension setup and is also a personal thing per rider as you know.

And yes, I am convinced about the above-mentiond advantages but we'll have to continue to find ways to make thos strong points even better.

Dave, stop pestering your little friends!!    

test on circuit zolder by independent motorcycle magazine (Motoplus) was a great succes.
Here some pictures:

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Kind regards,

MJ

Arghhhh, english, please!!!!!!
Nice to get a bit of attention from a magazine! The bike looks pretty cool too with his new colors and the carbon fairing!

What a beauty!

From the first time with your supermono I'm still a big fan of  of your bikes' general design. Keep it up!

Super travail.
GN

Bonjour,
Et en plus, elle est belle!
Félicitations.

Merci a tous! (my best French... )

There will be a test done by a professional pilot on circuit Assen next spring (April or may)

I will only make two more of these frames, so 3 including this prototype.

Kind regards,

MJ

Good news !! very good job, congratulations guy !

Malheureusement la plupart des photos de se topic ont disparu.

Les hebergeurs tiers c'est vraiment la merde.

Une solution pérenne d'hébergement directement sur le serveur du forum serait à mettre en place

philou a écrit:

Malheureusement la plupart des photos de se topic ont disparu.

Les hebergeurs tiers c'est vraiment la merde.

Une solution pérenne d'hébergement directement sur le serveur du forum serait à mettre en place

Cette solution existe déjà, il s'agit de servimg, l'hébergeur intégré à ce forum (ainsi qu'a l'ensemble des forums "forumactif"), à moins que le posteur aille sur son compte servimg pour supprimer les photos elles ne sont quasiment jamais supprimées, saufs bugs exceptionnels.