BST Wheels beware!!!

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George Villar said:
Carbon wheel- Ducati Up North

This is a post by the BST Importer on an accident resulting from a CF wheel failure. You don't read this or see photos of lighter alloy wheels like this?

MUST READ!!!!!
Click to expand...

George: Did you even read this? (Rhetorical) The article makes the exact opposite point you do.
BTW, it's a good article; thanks for posting.

Again, I think opinion on performance of these wheels is best left to those who have ridden on them. Like I said on page one of this post. I've had them for years and done lots of miles and tire changes with no problems and only positive, transformational changes in the bike's handling.

I think it comes down to personal choice; but, I have to agree with other that a negative generalization about BST carbon fibre wheels is not an accurate one, nor fair.
 
Post#99 +1

Carbon fiber is risky because it tends to fail catastrophically, and is susceptible to impact and puncture damage from road debris much more than say a forged aluminum wheel. It can absorb good impacts depending on the directions it is designed for and its good at dampening too.

The posters that qualify the road conditions (e.g. track) that best suit CF wheels seem to be supporting that position, which seems reasonable to me.

After all we ride specialist bikes that excel within a race environment. It reminds me of the then (early 90's) North American obsession with light weight road bicycle parts and wheels, compared to (generalizing) European racers thought increased reliability was worth the trade off in ultimate performance. Certain parts are worth saving weight, even rotating mass, unless your sponsorship demands shaving a tenth off your last lap.

Yes, CF construction techniques have progressed but they have not eliminated their physical properties just the same.

But each to their own. They do look cool. :)
 
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Charlie, that's true BUT if they're not approved by the DOT that means manufacturer isn't obligated to warranty any road defects or for that matter guarantee them road safe, hence the "for race use only". In the US market. Tho I'm sure the cost of DOT cert. for motorcycle components is probably obscenely costly.



Charliem90 said:
This isn't quite correct.

That Marchesini's aren't DOT approved doesn't mean that they don't meet those standards - only that they haven't been tested/certified against those standards.

I design electronic circuits that are not UL approved. Doesn't mean they wouldn't pass - only that they haven't been tested for approval by UL.

Because something isn't approved by a certifying organization doesn't mean it doesn't meet the requirements - only that it hasn't been tested against those requirements.
Click to expand...
 
zvez said:
Charlie, that's true BUT if they're not approved by the DOT that means manufacturer isn't obligated to warranty any road defects or for that matter guarantee them road safe, hence the "for race use only". In the US market. Tho I'm sure the cost of DOT cert. for motorcycle components is probably obscenely costly.
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Marchesini has race and road versions for mags, just like OZ, except OZ is DOT.
Example: Porsche made a child seat back in the 90s that fit a 911. You couldn't buy it here because they didn't want to spend the money to certify it. So while I was at the factory in '94, I bought it and brought it back with me. Perfectly good/safe seat. :)
 
ScrapperX said:
Here is an interesting video
Click to expand...

Even more interesting, Bellissimoto thinks the mags are DOT rated:

Every 1 ounce of weight on your rims edge at rest is equal to 25 pounds of weight at 100mph
Patented forging system achieves an increase in Mechanical strength of over 30%
Extremely long life span, not prone to cracking, distortion, or deflection
They are SAFE! Approved by both the DOT, and the TUV for road use
Available for all Makes and Models (contact us for fitments not listed below)


BellissiMoto - Marchesini Lightweight Wheels
 
Trauma said:
Even more interesting, Bellissimoto thinks the mags are DOT rated:

Every 1 ounce of weight on your rims edge at rest is equal to 25 pounds of weight at 100mph
Patented forging system achieves an increase in Mechanical strength of over 30%
Extremely long life span, not prone to cracking, distortion, or deflection
They are SAFE! Approved by both the DOT, and the TUV for road use
Available for all Makes and Models (contact us for fitments not listed below)


BellissiMoto - Marchesini Lightweight Wheels
Click to expand...

Nice try, These are the The GENESI M7R road version Forged Magnesium Alloy They have more Alloy in them than Magnesium versus the M10RS Course which is pure forged magnesium and a tad bit lighter. I dont know why Bellissimotto advertise them as Forged Magnesium and left out the Alloy, but more manufactures are doing the forged Magnesium Alloy thing to get the street riders to buy them to replicate the professionals and to weed out the imperfections of forged magnesium. More professional Race teams are also using them because they are cheaper. I definitely would prefer Mag alloy over forged Mag for the street. Hopefully these are the ones you bought so you dont have to sell them :)

Marchesini makes racing series "RR" for tracks which I think maybe lighter.

Take that back Bellisimoto did say it was mag alloy in the write up.
 
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Trauma said:
Shouldn't this be in the Marketplace? You know you are a vendor now, right? ;)
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Agreed.... I think this isnt the place for advertising... It blurs the lines between threads and selling....
 
People come to forums to get unbiased reviews of products, so a vendor acting/posting like a regular rider goes against the spirit of the forum - of course my independent view, take it or leave it, let your conscious be your guide.
 
ScrapperX said:
When i looked into the Carbon Fiber BST. I heard the same thing what Trauma said that tracks were banning them. It turns out that Moto GP banned them due to limiting "performance cost". I haven't found a track around southern Cal that bans them. Im not sure if any other tracks bans them. Hence the question.
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"Performance Cost" a pair costs 4,000$ where as Honda's Seamless Shift technology costs 350,000Euro's.

back to topic.

As a former BST owner, I can say that the wheels are great and will not break on a slightly rippled road. I even hit a pot hole doing 65mph and the bike did not break.

If this where a factory defect, it is hard to imagine that both wheels will fail right away. The owner did something stupid and foolish to have such damage.

I had my rear wheel "crack" but not because of serious track use or street riding but because the tire installer did not handle it well. That is it.
 
Trauma said:
Shouldn't this be in the Marketplace? You know you are a vendor now, right? ;)
Click to expand...

I think it's ok, let them defend their product, it's their bread and butter after all.

Sometimes guys go on a rant over a supposedly faulty product and it all comes down to their error in installation or usage.
 
fireman1251 said:
I think it's ok, let them defend their product, it's their bread and butter after all.

Sometimes guys go on a rant over a supposedly faulty product and it all comes down to their error in installation or usage.
Click to expand...

I think trauma is saying that that was a purely commercial post and said poster revived an old thread about the topic purely in the interest of marketing a product that he now sells. .. I agree with trauma - that posts of this nature should be in marketplace. I also believe he knows fully well and used this old thread to do it in the interest of not having to do it in marketplace and posted it here so it "looks" like he's bringing an unbiased other option in this forum to get out of the restriction of the marketplace.

I would go further along your lines to say that I doubt the capability to defend the product exists in the same vein that a product representative can/could.
 
anthem said:
I think trauma is saying that that was a purely commercial post and said poster revived an old thread about the topic purely in the interest of marketing a product that he now sells. .. I agree with trauma - that posts of this nature should be in marketplace. I also believe he knows fully well and used this old thread to do it in the interest of not having to do it in marketplace and posted it here so it "looks" like he's bringing an unbiased other option in this forum to get out of the restriction of the marketplace.

I would go further along your lines to say that I doubt the capability to defend the product exists in the same vein that a product representative can/could.
Click to expand...

Interesting, Gunny edited his comment to "something to consider" right after I posted, so I will delete my post. That's the way it should work, self moderating!
 

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