Guest OCD Posted April 13, 2004 Report Share Posted April 13, 2004 I am concerned about one of my boards, which I've just discovered, has a concave base. I took it to a shop recently hoping that I could watch the tech tune my board before I started at home. I didn't even consider any base issues because I bought it recently and thought base change may only happen later on down the road. When we looked at it using a true bar there was a significant amount of light showing through. He said that a lot of material would have to be removed to get the base flat. I'm a little unsure of what to do. It did look like a lot of material would have to go in order to get an accurate base bevel but I don't have the experience to judge. I've looked through past threads but haven't seen anything quite this specific. Any thoughts? Quote Link to comment Share on other sites More sharing options...
Chris Houghton Posted April 13, 2004 Report Share Posted April 13, 2004 I had the same problem, just chose to leave it alone and ride it. Works fine, just don't try to ride it flat (of course Alpine riders never do that anyway). Quote Link to comment Share on other sites More sharing options...
Kent Posted April 13, 2004 Report Share Posted April 13, 2004 I've yet to see a flat "used" alpine board........ Quote Link to comment Share on other sites More sharing options...
Guest OCD Posted April 13, 2004 Report Share Posted April 13, 2004 The board was brand new, first season on it, so I'm a little vexed. Do boards go out with warped bases? Quote Link to comment Share on other sites More sharing options...
Tommy D Posted April 13, 2004 Report Share Posted April 13, 2004 I have a RennTiger from a couple years back that has a concave base. I just leave it alone; it doesn't seem to affect performance. Quote Link to comment Share on other sites More sharing options...
ncermak Posted April 13, 2004 Report Share Posted April 13, 2004 I had an RT (SL168) that was railed too...never was sure if it came that way (one Ski tech said it did, but I don't think that he ever saw a race board, and didn't want to risk doing something stupid) or got that way. Nevertheless, It rode awesome on edge. .. not sure why I sold that one... -Noah Quote Link to comment Share on other sites More sharing options...
Guest AlpentalRider Posted April 13, 2004 Report Share Posted April 13, 2004 Straight from a tuning guide: "The base should not be concave, or “railed”, with the edges higher than the base. A concave base or railed edges encourages the equipment to run straight and impairs the turning ability of the equipment. Although, a slight concave base may provide some riders with quicker contact for turning and some added stability. Conversely, the bases should not be convex. A Convex bases (base is higher than the edges) will cause your equipment to wander and make it difficult to put them on edge or grip on the snow. " So if it isn't real bad, or you don't notice a significant issue in turning the board I wouldn't worry about it. My guess would be you would really only notice it if you do alot of cruising, but my guess is you'll be on edge 90% of the time :D Quote Link to comment Share on other sites More sharing options...
Guest OCD Posted April 13, 2004 Report Share Posted April 13, 2004 Thanks for the input. I've not had any issues riding the board, it's been great. What about the base bevel, do I leave it and focus on the side edges? Guess I'll just have to live with it and make sure that when buying a board over the net, the guy on the end uses a true bar before sending me anything. Quote Link to comment Share on other sites More sharing options...
D-Sub Posted April 13, 2004 Report Share Posted April 13, 2004 I dont remember where I read it but something I found said that there are actually more boards out there than anyone realizes that arent flat. and they come that way from the factory was what this article said Quote Link to comment Share on other sites More sharing options...
Guest OCD Posted April 13, 2004 Report Share Posted April 13, 2004 The tech at the shop in Mammoth said that he rarely sees a board that is flat? Quote Link to comment Share on other sites More sharing options...
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