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LSR has built the first ever 100% Titanium Chassis

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Old Sep 19, 2002 | 01:23 PM
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lt250r91's Avatar
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Check out their website. Frame
I guess the trick aluminum one on my cannondale is too heavy now. I wander if they make one for the cannondale quad? I read in my new dirtwheels mag that the cost of the frame is going to be around $5300. I can buy a new quad for that. Still this is pretty cool. Whats next a carbon fiber frame. Now that would be neat.
 
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Old Sep 19, 2002 | 01:30 PM
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Ya, its super cool, and super expensive. but, don't expect to buy one and go racing with it, it's agaist AMA rules to have a Ti. frame! sucks, don't it?
 
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Old Sep 19, 2002 | 01:40 PM
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VISA/Mastercard Accepted!!! That's pretty trick!

Good to know the next issue of dirt wheels should be home when I get there!
 
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Old Sep 19, 2002 | 04:41 PM
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Has anyone got the seat lock yet, I'm not sure what the real benefit would be.
 
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Old Sep 19, 2002 | 04:49 PM
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That looks pretty good, but its not a huge weight savings, atleast I don't think it is. So you save 30-40 lbs, I guess if your into racing big time something is better than nothing.
 
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Old Sep 25, 2002 | 01:49 PM
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Brent,

That's ALOT of weight on a motocross bike.
 
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Old Sep 25, 2002 | 01:50 PM
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Speed02,

I'm making one eventually. The benifit? So your seat doesn't fall off! A couple of guys keep loosing the black ****....including me.
 
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Old Sep 27, 2002 | 12:37 AM
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smittee is right about the ti frames being against the rules. another drawback is that titanium is REALLY hard to weld. it gets super brittle when welded. waay to brittle for racing. to weld titanium you need to be a master welder and you need to cool it down in a special way with an oven that makes the heat very slowly and gradually get cooler and cooler, and even then the frame is too brittle for racing. the ti frame is not a good idea.
 
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Old Sep 27, 2002 | 07:23 AM
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In addition to what Juggalo said, isn't LSR only marketing this frame for TT and sand-dragging purposes?
 
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Old Sep 27, 2002 | 11:05 AM
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juggalo, the reputation of Ti being hard to weld is kind of a misnomer... there are some alloys in use that are no harder to weld than some steels. I'm not sure which one LSR is using, but I'm sure that it is one of these more workable alloys. There are some considerations that must be made when designing with Ti-- although you can get comparable strength with less material (i.e. thinner walled tubing), you will get alot more elastic deformation for a given load, and this has to be accounted for. The lack of stiffness usually requires compensation with excess material or more complex structure designs, which results in higher costs.

I agree with the rules for a different reason, though. Yes there is a performance advantage to be had when using Ti components, but the cost of that advantage just drives up the cost of fielding a competitive race quad/team. Don't you guys think that it is expensive enough to build a race quad without tacking on another $5G+ ??
 
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