Beiträge von Marco

0 - 5 hundertstel

bier ist auch nicht meins, meide aber generell alkohol

geh in baumarkt kauf steinwolle und mach die rein, stopf nicht zu fest.
Ausserdem noch einen Siebeinsatz den du zwischen Resonanzkörper und Endschalldämpfer machst, das schluckt nochmal ordentlich dezibel, notfalls auch einfach nur zwischenklemmen.

Grüße

ist doch nix neues..

solche geschichten gibt es zu magnesium und aluräder genauso.
Man betrachte sich nur mal die vorderräder der letzten kawas die sie zurückgerufen haben usw. usw.#

Hier ein Magnesium Rad :D

Hier was aus den Staaten für alle die der Englischen Sprache mächtig sind(oder es glauben :D)

Zitat

I have a set of BSTs on my bike that I got from Motowheels. Here is what they had to say about the crash:

I was not there when it happened. I found about this a few days after it happened and received a series of photos about a week and half after I heard about it. I'm not a composite expert nor am I an expert in accident recreation--but I have spoken to alot of qualified people that have seen the photos.

Rider error was ruled out as the rider was a very experienced track rider. Wheel was checked by the shop and deemed to be in good condition for the last year of intense track use. Records show the serial numbered wheel to be fault free.

The engineers that I spoke to feel the tire lost air and caused the bike to lose control which resulted in the bike tumbling end over end at 120 mph+ (speed reported by rider).

Here is what they pointed out from some other photos that were submitted:

Axle around wheel nut is cracked from an impact. -- Energy can not pass through a broken wheel which indicates the bike sustained serious impact while tumbling and was likely intact at the time of impact.

No damage or marks on the underbelly, exhaust or deep sump oil pan to show the bike hit the ground from a wheel coming apart while upright (the deep sump is only 3-4 inches of the ground)

No marks from wheel on the inside of the swingarm or bottom of exhaust either.

Dirt is packed into the exhaust pipes indicating it hit on its ass end where it has no give at all (note condition of forks/triple clamp and front wheel). Witnesses say it packed about 6 to 8 inches of dirt in the pipe. The suspension and swing arm has no flex at this angle. A wheel with no air in it will have to absorb all the energy. It is obvious that it hit very hard on its ass end.

Spokes ends show no impact damage indicating it hit the ground. The paper thin outer cosmetic layer is still intact. It was not ripped off but was severed on the ends near the rim due to trauma of the outer rim from hard direct impact.

No marks on the caliper or rear rotor of hitting the ground as a failed wheel wheel on a upright bike would typically show.

There is no doubt that the wheel take a huge hit as the rim has a deep fracture from a high energy impact with possibly no air in the tires.
Outer rim shows significant impact damage in one spot causing the distortion of the rim to rip the spokes off.

No marks on the inner rim from rotor or caliper impact like you would see on a spinning wheel that came apart.

Owner indicated he felt the bike drop down momentarily and then going down before he can react to it. If the "wheel exploded" while upright, it should not have such a direct high energy impact on the outer rim--and would show more impact on the bike's undercarrage and surrounding area.

I did some research on the wheels:

BST is the most tested wheel by independent facilities than any other wheel. It was raced in MotoGP for nearly two years before it went on the market.

Wheel rim test exceeds 10,000 NM for impact.
http://www.ram.mc/wheels/BST/E...n.htm

Each spoke is tested to exceed 8000 NM before ripping off laterally.

Rim Technology tested the BST wheel as stronger than an OEM wheel.

Wheel is fully TUV, JWL and DOT certified. Facility and production process is also TUV approved. BST is an aerospace company that builds CF helicoptor blades.

Each wheel is cured in autoclave for 5 hours and then tested before it moves on.
Wheel is x-rayed at factory to show proper curing and lay up. Each wheel has several page history that can be traced through its serial number. This particular wheel was traced through the serial number and it showed no flaws.

Some people are assuming the spokes are "glued on the rim". This is not the case. The BST wheel is a one piece Carbon wheel. The carbon fibers run from the rim to the spoke. The spokes are not laminated to the rim and will not tear off with less than 8000 NM per spoke. It would require a huge impact to break the rim off the spokes. It makes sense that the spoke would tear off with impact as energy does not like to make 90 degree turns.

It is unlikely that a wheel that could take all that testing could fall apart or explode going in a straight line. There is very little stress on a wheel when going straight. It is more likely that it came apart on impact.

We may never know what happened. BST has offered to send a composite engineer to the USA to examine the bike, the tire and the wheel. The engineers want to know as much as anyone. If there was some evidence that the wheel was at fault they would pull it from the market. So far they do not have any physical evidence of that.

I know a lot of people have reservations about carbon wheels and are quick to blame the wheels when they see the broken carbon wheel like that. Most people's experience with carbon is limited to the CF fender that they have on the bike. The fender and the wheel has about as much in common as an aluminum screen door has to an aluminum wheel. It is two entirely different processes and materials.

I think the owner of the bike has hired an independant party to find the cause of the accident. I have not heard any results yet. If any one is interested, I can share the findings with you

Alles anzeigen

Zitat

In regard to specific first-hand experience, the US sole importer of BST, motowheels states:

Both aluminum and magnesium wheels will get damaged on moderate impact. We, and everyone else, see this damage all the time. We sell a roughly equal number of magnesium and BST carbon wheels. In a sample of over 600 sets, we have only replaced one BST wheel for impact damage. We replaced over 25 aluminum and 15 magnesium wheels in the same 12 month period. All the BST wheels in North America came back through us, so I'm sure we have not missed any. I'm also sure there are other aluminum and mag wheels that did not go through us, so it is safe to assume that there are a lot more damaged aluminum and magnesium wheels out there to add to the total. moto

mir macht das keinen Harten..zumal das ein Rad für ne Einarmschwinge war :biggrin:

werd ich schon merken wenn sie brechen, wa?

komplett aus carbon, ausreichend stabil dasses dafür ein tüv gutachten gibt.

nicht illegal, solang ich nicht damit auf der straße fahr, aufm bild steht sie ja nur :D

Hallo Forum,
für alle die es intressiert, hier neue Bilder.
Hab ein paar kleinigkeiten gemacht und bin gestern Probe gefahren,
leider war es mal wieder nass.
Ich versuch mal aufzuzählen was über den Winter gemacht wurde.
-Arrow RaceTech Short ESD in Titan, Zwischenrohr noch Edelstahl (Titanrohr in Segmentbauweise (wie motogp) im Bau),
ESD Halter (von Pepsi, danke nochmal!)Carbon mit Wabentechnik und Titaninlays (45gr leicht)
-BST Carbonräder (waren für Model03/04 also komplett neu ausdistanziert,
Kettenradträger überdreht) auf Titanradachsen mit Alumutter
-Wieres Alukettenrad machen lassen für die Felgen mit Titanbolzen/Alumuttern verschraubt
-Bremsscheibe hinten 40% leichter gemacht, mit Titan verschraubt
-Bremsscheiben vorne FranceEquipement Wave Racing 300mm (Bremssättel gefräst um die kleineren Scheiben fahren zu können) mit Titan verschraubt
-Bremssättel in Titan verschraubt mit Titanbremskolben wcc coated
-Melvin Stahlflex v. u. h. mit aluhohlschrauben
-Umlenkung, Motorhalterung, Auspuff, Amaturen, Gabelbrücken, Federbein, Rastenanlage usw. fast alles in Titan verschraubt oder Alu wo möglich, die wenigen Stahlteile kommen auch noch weg.
-Fußrasterbolzen in Titan hohl gemacht, Kupplungs- Bremshebelhebelbolzen auch in Titan
-Aufnahme Druckstange am h. Bremshebel aus vollem Alu gefräst mit Titanbolzen
-Ständerbolzen Titan mit Alumutter
-Fersenschoner carbon
-Kennzeichenhalter Carbon
-Motorschraubensatz in Alu
-Lenkergewichte Kunststoff

Ich versuch mich sehr aufs Detail zu konzentrieren,
das meiste würde man womöglich garnicht sehen/erkennen,
aber ich weiss es und das macht doppelt spaß.
An Leistungssteigerung denke ich eigentlich nicht,
ich versuch nur im Rahmen von Straßenzugelassen alles schick und leicht zu machen. Möchte möglichst nicht(mehr) illegal unterwegs sein, kopf muss frei sein zum Fahren!
Für nächsten Winter stehen die ganzen Plastik Teile sowie die restlichen Stahlteile auf dem Plan (Ständer+Aufnahme, Schwingenachse usw.).
Ich spekulier mit einem selbstragendem Carbonheck, Carbontank + Carbonverkleidung.

Ich hoffe der ein oder andere findet gefallen an meinem Bike auch wenn es kein 2Takter ist (ist ja nurn andrer Motor )
Nun die Bilder.
Grüße

aber immerhin schon fair vom vale 2 vierrad und "nur" eine Zweirad Disziplin anzubieten.
Tolle fände ich Motocross, piste und eben bei den vierrädern piste und wrc(ralley)...

ich bin zuversichtlich:D

jou!

nachdem was ich bei valentino in nem wrc car, im formel auto und aufm motorrad gesehen hab, muss ich sagen dass alonso die fresse ganz schön voll nimmt.

Gegrinzt wird nachher