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So i grabbed a pair of some 2012 sfbs and am not sure where to mount them these will be my main ski so i will be shreddin park a decent amount but i dont want to compromise the ski. i was thinkin -1 from true center would be my best bet. Any thoughts?
if im not mistaken they r recomended at -2 so I would just mount there. and where do u live? and what percent do u ski stuff? like ercent park, pow, trees etc.
Dude trust me on this. First measure the ski tip to tail. I have yet to get mine but if I'm not mistaken, the midsole line on the ski is -2 from dead center. Same as the opus. What I can tell you is that without a doubt there us more rise in the tips than the tails. The rise is slightly more symmetrical than the opus but not by much. So if the midsole line is at -2 of dead center, the ski will feel like a center mount as far as running surface is concerned but will ski like it's -1.5 back when ya put it on edge which means easier turn initiation, etc. Now I should have mine tomorrow and even though my best friend already measured it all, I gotta do it myself. If you can what till tomorrow night before mounting I'll hit the thread back and let ya know for sure. If you can measure it yourself that's even better cause, why listen to some clown on NS right? If you can do that I'd say first measure straight across tip to tail. Then with a tailors taper measure the actual surface are of the entire ski. Also put the ski on a flat surface and compress the camber. This way you can measure the actual contact points for "actual" running surface. When you do this last part you should be able to see the difference between the tip rise (rocker) and the tail rise. If I'm correct that should be about 1.5 more in the tips. If I'm also correct that the midsole line on the ski is at -2 of dead center, that means that as far as running surface is concerned, it will feel like your actually at -.5 while riding. Now granted you will still have 2 out in front of you in actual space and some may say that could effect swing weight for spins. I say no. I've ridden numerous center mounts and my last years bacons were mounted center. I found that I ski so much better at a -2 mount for anything other than rails or urban, which I'm guessing you won't be using the bacons for anyway. Hope that helps and regardless, I will hit ya back tomorrow with extensive measurements and a more concrete recommendation.
Ok. So I promised ya some legit measurements and mounting advice once I got mine in my hands and were able to accurately measure them myself. I should say that it's a good thing I did so and didn't go off of my buddies measurements because they were off. Plus the running surface IS actually symmetrical although the rise is a touch more dramatic in the tips, creating an optical illusion, which caused me to think there was less running surface is the tips compared to the tails. So let's get on with it. I am basing this off of the 178s. As posted by someone above, the midsole line is actually at -2.5 back from dead center. Also on a flat surface I was able to measure the running surface contact points. 30 on both the tip and tail so it is a symmetrical running surface. Now that doesn't mean that your running surface is only 118. The rise beyond 118 is minute for quite a bit so on anything other than an absolute sheet of ice, it's going to be more like 138 for groomers and 170ish in anything over an inch of fresh. So what does this mean for mounting? Well it becomes a preference thing at this point. Though I believe that a dead center mount will hurt turn initiation due to the asymmetrical sidecut. The tips are 140 at their widest point and the tails are 136 at their widest point. So you have a difference of 4 but you half that because you can't be on both edges at once and you end up with 2. So at this point I would say -2 from dead center is going to be your optimal mount IF and only IF you plan on using this ski for bigger park features, backcountry booters, and generally more groomers than fresh. IF however you plan to use this ski for tree runs, pow, etc....I would recommend mounting at the midsole line at -2.5. It's going to be a tough toss up because normally a .5 difference isn't that dramatic. Especially on a fairly symmetrical ski. However, it is my opinion that mounting further forward than -2 will dramatically alter your turn initiation, making it more difficult, and will alter your turn exit, causing you to "wash out the tails" under hard stress. All of this is just my opinion based on my own measurements and I encourage you to do the same. I will say that I will likely mount mine at -2 but I intend to use mine as a general all mountain jibber and pull out my opus for the deep days. If this were my "quiver of one", I would mount -2.5. Hope that helps and good luck with em.