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Ski Durability - Rocker & Chamber

post #1 of 7
Thread Starter 
I have searched around trying to find more information on ski durability and honestly cannot find much out there.

I know the usual, core shots, edge damage, etc.

How does flex and camber change with time?  How durable are skis?  How about rockered skis?  I know nothing about these topics.

I'm looking for a set of used Rossignol S7s and am worried about these topics given the shape and softness of the ski.  Would you be worried buying a set with maybe two seasons under them? 

Thanks!

EDIT: Grr... camber... long day at work..
Edited by Llama - 4/15/10 at 5:01am
post #2 of 7
If you know the seller, ask him why he is selling, how much time he has on the skis, what he thought of them, how he skied them, etc.

To check a ski for damage, visually inspect everything. Edges, topsheet, base. Look for cracks that might let moisture in or would indicate damage. Put the skis base to base and squeeze them at the middle. Look down the edges (both sides) looking for any kind of variation from a normal straight edge. If the edges aren't straight, look elsewhere.

The very rough rule of thumb is 100 days or so will pretty much be all you get from a ski before it suffers significant breakdown. Flexing the ski might help see if it is still 'lively' or not.
post #3 of 7
Thread Starter 
Thanks, great advice.

Obviously all skis aren't made equal, but do stiff skis last longer then soft skis or vice versa?  Or is it completely irrelevant?
post #4 of 7
Wood core skis last longer than foam core skis. I would think that a stiffer ski might have a longer life simply because as it breaks down it has farther to go towards noodleness than a softer ski.
post #5 of 7
Ahh... but does a stiff ski become soft faster than a soft ski becomes a noodle???

If you get what I mean???

i.e. Is the breakdown in noticable skiing properties quicker with a stiff ski??

I have no idea..... just sat a work thinking lateraly!!
post #6 of 7
Quote:
Originally Posted by ramzee View Post

Ahh... but does a stiff ski become soft faster than a soft ski becomes a noodle???

If you get what I mean???

i.e. Is the breakdown in noticable skiing properties quicker with a stiff ski??

I have no idea..... just sat a work thinking lateraly!!


 

I wondered the same thing.
post #7 of 7
Modern designs are pretty bombproof. That said, a pure wooden and glass layout, all other variables constant, will be noticeably softer after 150-200 days. A layout with carbon or metal is essentially immortal, since those have the flex pattern in their molecular structure, do not "soften" (well, OK, carbon will gradually break its individual fibers, but if it's embedded in a laminate, you'll die of old age before it's floppy.)

Rocker is different. The bigs, like Volkl, have rocker built into their molds and/or machine their cores with camber and rocker, rather than press it in mechanically later. So they won't get floppy any quicker than the rest of the design. Indies, OTOH, haver to go with pressure and heat; that kind of rocker can soften within a few seasons, which means you'll begin to lose the curve. Especially if stored badly. OTOH, you can actually add rocker to a straight wooden ski in your garage. Nice thread over at TGR about rockering Sumos. 

The stiff to noodle query seems like one of those trick questions. A stiffer core can lose a greater percentage of its stiffness before it gets to the level of a soft core. Or to a noodle. I think you're really wondering about your subjective sensation of stiffness. If you expect/need a very stiff ski, then yes, the same percent change will probably be more noticeable to you. Happens to racers. If you buy a soft ski, more loss of stiffness may just be what you're after anyway. Especially nowadays when it's hard to find higher end soft skis.

Bottom line: Unless you race for a living, or ski off cliffs and pillows before breakfast, your skis will die when you start loving something else more. If you're really worried, get a design with metal or carbon. 
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