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Erick Added a reply to 2011 RMZ 450 vs 2006 Eric Gorr RM300 2 stroke
9/27/2011 2:46pm Thank you for the write up 
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Erick Added a reply to My best pics of 3 Time World and 1999 250 MX Champ Greg Albertyn
9/26/2011 10:26am Thank you very much for the pictures! I was looking for pictures of 1998 - 1999 RM250 factory bikes for ages :D
Erick Added a reply to 450's down on power?
9/20/2011 11:12am Good point you have there. I think you hit the nail on that one. What should be added is that in the world of amateur motocross (which about 99,5% of all riders are) there are very few who can ride a 450 to it's full potentional and are (arguably) better of with a 350. I am not saying it is...
Erick Added a reply to 2012 GasGas
9/20/2011 3:54am @Premixed
Amen, well said
@Rmpilot
I think it is for weight reduction and looks. Because the metal at those points is less stressed when subjected to bending. The same you see in some steel roof constructions
Erick Added a reply to Close the Vital borders now
9/19/2011 1:11pm LostBoy, what are you afraid of?
Erick Added a reply to 450's down on power?
9/19/2011 12:16pm Ah he just turned 17 then, in ieder geval bedankt voor de correctie
Erick Added a reply to 450's down on power?
9/19/2011 11:23am I believe he is 16 
on a slow, heavy and underpowered 350 bike.
on a slow, heavy and underpowered 350 bike.
Erick Added a reply to 2012 GasGas
9/19/2011 8:52am I agree, the more brands the better. I think the Gasgas is butt ugly, but it sure has some nice ideas put in which makes it very interesting
Erick Added a reply to Every MXDN, we wonder....
9/18/2011 11:22am Some people lack intellectual skill. So when you try to start a proper discussion they will feel insulted and then say you are a communist. People fear what they don't understand. And you cannot escape the stupidity of some vitalMX members 
Erick Added a reply to Every MXDN, we wonder....
9/18/2011 11:05am Please define your higher standard of living compared to mine (for example).
Erick Added a reply to 2012 GasGas
9/17/2011 5:04am Spain has a long history in bike building. Montesa, Ossa and Derbi to name a few. Anyway have you got any good arguments to back up your statement? I am dying to hear your engineering concepts and ideas for a better bike
Anyway, some more pictures. Notice the plastic subframe and the strange fuel tank
I wonder what...
Anyway, some more pictures. Notice the plastic subframe and the strange fuel tank
I wonder what...
Erick Added a reply to K-ROC riding the 350 today in France for MXDN
9/15/2011 4:07am So, considering the facts of Villopoto and Roczen.... Will Roczen be underpowered on a 350? Or at a power disadvantage as you called it.
Erick Added a reply to K-ROC riding the 350 today in France for MXDN
9/14/2011 3:00pm Did you recall a particular German called Ken Roczen lead for a while on a 250cc bike last MXDN.... ? I expect USA to win, but I hope Herlings and Roczen can give them a spanking similar to the famous Mr. Everts. I think this was epic, the last true race of his live. To bad Ricky Carmichael wasn't there...
Erick Added a reply to Check out these super trick works Prototypes
9/8/2011 1:01pm Thank you for the beautifull pictures you post. And thank you for the effort you put in
Erick Added a reply to Design process of a new motocross bike (Pursang)
9/6/2011 3:40am First of all, thank you for your informative response
I am a fan of your work and very interested in the technical aspect as I am an engineering student at the TU/e So how does the frame respond when the engine is mounted? It must have a big impact of the frame ridgidity. Have you analysed this too? It...
I am a fan of your work and very interested in the technical aspect as I am an engineering student at the TU/e So how does the frame respond when the engine is mounted? It must have a big impact of the frame ridgidity. Have you analysed this too? It...
Erick Added a reply to New Electric MX: BRD Redshift
8/5/2011 8:53am Thats not true. When you have a eletric motor you can get torque by wire control. This means 50% throttle equals 50% torque. Your right wrist is your traction control. I once have ridden an electric bike and it feels awesome. Very much four stroke like but then even better. And electric dirtbike is exactly what the sport needs. Quiet...
Erick Added a reply to Design process of a new motocross bike (Pursang)
8/3/2011 2:52pm Congratulations with the work you have done this far. I am very impressed with the professionalism of your work. I have a few engineering related questions: - Did you design the steering geometry (wheelbase, trail, swingarm length, swingarm location, fork offset and head angle) to replicate in someway the steering geometry of the original model? If not, on what data...
Erick Added a reply to Design process of a new motocross bike (Pursang)
8/2/2011 3:30pm You are absolutely right, we need as much brands as possible. The more choices, the better
Erick Added a reply to Design process of a new motocross bike (Pursang)
8/2/2011 2:12pm You can do it yourself, if you have the knowledge and tooling ($$$). What do you want to be cast? What material? How big? What are your tolerances? If it is moto related you should post it here. I would like to elaborate
Erick Added a reply to Design process of a new motocross bike (Pursang)
8/2/2011 10:56am Well, the castings are propably sand cast. With sand casting you get the same signature as sand. When you use coarse sand the texture will also be coarse. Since sand casting is pretty economical for low production units it is a suitable method for a prototype. If they plan to produce the frame in higher number you could consider a...