Tail Width
Waist width


Nose width

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Ski Length

Dimensions
Terminology Guide
Length
Generally the taller you are the longer ski that you want. This also has to be balanced with your skiing ability. Longer skis are a little harder to turn than shorter ones but a 6ft beginner will probably require a longer ski than a 5 ft 4 ins beginner in order to get the right balance when skiing. As a general rule for beginners, a man of average height (5ft 10 ins) would suit a ski between 165cm and 175cm. A woman of average height (5ft 5 ins) would be more likely to go for a ski of between 155cm and 165cm. The type of skiing you do will also affect the length of ski, speed skiers will usually have longer skis.
Width
The width of a monoski is measured at the nose and the tail at the widest point and the waist at the narrowest point. If the ski has a high difference (30-40mm) between the waist and the nose/tail it will be easier to turn and is generally better for beginners. Straighter skis with less than 25mm are generally quicker but more difficult to turn.

Alpine Rocket 178
Alpine Rocket 186
Alpine Rocket 199
Ski Length
178cm
186cm
199cm
Radius
14m
17m
32m
Nose width
242mm
242mm
228mm
Waist width
200mm
200mm
190mm
Tail width
230mm
230mm
212mm
Radius
The radius is the measurement of how big a circle would be if the ski was put on the floor and you drew a line along the edge. If you continued this line past the ski at the same gradient, a circle would eventually be drawn based on the bottom of the ski.  It effectively measures the turning circle and therefore the lower the radius, the shorter the turns that the ski can make. A speed ski will have a longer radius. A ski of less than 12 metres will be considered a very short radius and therefore very easy to turn. Over 22 metres would be a long-turning ski. Anything inbetween would be considered within the medium range but obviously potentially towards either end of the scale.
If you need further help in choosing a ski, try these links below or by all means contact us with any questions you have.
http://www.mechanicsofsport.com/skiing/equipment.html
http://www.evo.com/how-to-choose-skis-size-chart-and-guide.aspx
http://www.skis.com/Buying-Guide-for-Skis/buying-guide
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