Rossi GS race ski tuning?

[capulin overdrive]

got some 2008 191cm worldcup GS skis i'm wanting to tame a little.


used for no snow resort days, flying down groomers, few bumps, crud, ice, etc.


as is, they're too grabby on anything but perfectly groomed.


read that race skis sometimes come 90/90 to allow people to tune how they want? wonder if mine aren't 90/90?


what degrees would you'll suggest to try for the edges?

[Dexter Rutecki]

One and two or one and three.

[Neuro]

I set my atomic GS12s to 3* edge, 0.7* base, but I like them a bit twitchy, and pretty much only use them on a race course or groomers when I feel like really ripping.

I'm not sure about the facotry tune of Rossi's GS skis. It's pretty common to send race skis in to get edge and base bevel, sidewall planing and structure set up to your preference when they're new.

[capulin overdrive]

i just started to mess with them, the bases don't look real flat, but i didn't straight edge them. they seem to be edge low in middle of the ski under the bindings?

pretty sure they're 90/90, but there may be some bevel on the side.


i cut a .5 on the base, and fixing to find out if i need a sidewall tool!


my edge tool only does .5 and 1 for base, and 89 or 88 for side. so guess if i do .5 base and 88 on the side, that would make for .5 base and 1.5 on the side?

[akfish]

no, if you did 88 on the sides that would be 2.... 88 from 90 = 2

[buttahflake]

1 degree base, 3 degree side good to go

[RShea]

i just started to mess with them, the bases don't look real flat, but i didn't straight edge them. they seem to be edge low in middle of the ski under the bindings?

pretty sure they're 90/90, but there may be some bevel on the side.


i cut a .5 on the base, and fixing to find out if i need a sidewall tool!


my edge tool only does .5 and 1 for base, and 89 or 88 for side. so guess if i do .5 base and 88 on the side, that would make for .5 base and 1.5 on the side?

The edge will be closer to 2 than to 1.5 (people have argued this over on Epic I believe) since the last small section of the base is the only part with that angle, your side edge tool is wider and actually sits on most of the flat base area. However if you are not at a flat base (concave or convex) except for the last little section then you have another variable that needs to be addressed. I will not provide any links but google it over on Epic and tuning sites with those having better math skills.


If your edge tool is 2 degree (88) start with that and try them out. If you want a higher edge angle, instead of having to get a new 3 degree (87) just put at least 1, maybe 2 strips, of electrical tape on the far edge that runs down the base. It is not as exact as having a 3 degree precision guide.

[capulin overdrive]

the 1.5 or 2 thing came after some googling.

one place counted the side degrees as to what was/wasn't square to how you had the base cut. they would call .5 and .5 a 90.



i'll get better edge tools here pretty soon, mine is a POS i grabbed to get by untill i could get some better stuff.


DOES ANYBODY MAKE A SIDE TOOL WITH A GUIDE THAT WON'T LET YOU KEEP CUTTING AFTER YOU'VE GOT THE ANGLE RIGHT?

my tool will cut the whole edge off on the side if you keep going?

[oftpiste]

^^run a sharpie down the edge you're working on. when the ink is gone the bevel is done.

[Neuro]

When setting things up initially for race skis, I highly recommend getting a shop to do it unless you`ve got some skill and the right tools. Setting base angle is a PITA, and when you`re dealing with high end race skis, you want it done right. You probably spent a fair amount of money on the skis, may as well get them set up right initially.

If you do decide to do it yourself, I`ll second other people`s recommendation to start off with a less extreme angle, and work your way up if they aren`t to your satisfaction. i.e. do 89 deg edge angle, if you don`t like it do 88 deg edge angle. You`ll need to take away quite a bit of material to go from 88 to 89, but its relatively easy to go from 89 to 88.

[capulin overdrive]

thanks guys!


Sharpie idea = The TITS!


i'm half ways done with my own cluster fuck tuning job, so guess i might as well finish!


i agree that i should have had a pro do it, but oh well.

got the skis on ebay for not too bad of price, the screwing came from adding on bindings to match the race plates.


the .5 on the base i'm confident i did a good job. though i was in over my head on doing the sides starting out.

feel lots better now with sharpie idea, and hope i'll be allright. agree again, that i should have went with 89 first on the side.

[land]

sharpie thing is great. Also, sometimes you can see the difference in the angle as a slight difference in color/shine if you look really closely. This is especially evident in skis that have been skied alot (which it sounds like yours haven't been).