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| Burton Lux 139 2008/2009
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K2 Believer 161 2010/2011
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These models in stores | ||
General model parameters | ||
| Shape | Twin-tip | Twin-tip |
| Purpose | All mountain | Freestyle |
| Gender/Age | Womens | Mens |
| Construction | Sandwich | Sandwich |
| Flex distribution | ||
| Bend | Zero | |
| Convex | Yes | |
| Base material | Sintered | |
| Baseline | Indulge your riding without working overtime. | True Twin Faith |
| Flex in collection | soft ○●○○○ stiff | |
| Price in collection | $$$$ | |
| Original flex index | 3 | |
Technologies |
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| Bend | Flatline | |
| Core | Honeykomb, WH3 | |
| Reinforcement | Triax Top Fiberglass, Biax Bottom Fiberglass, ICG 10, Carbon Matrix I | |
| Base | 4000 Sintered | |
| Tip | Hybritaper | |
| Convex | 1 Degree | |
| Sidecut | Hyper Progressive | |
Measurements |
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| Size, cm | 139 | 161 |
| Length, mm | 1390 | 1610 |
| Running length, mm | 990 | |
| Effective edge, mm | 1030 | 1269 |
| Nose width, mm | 270 | 300 |
| Waist width, mm | 234 | 253 |
| Tail width, mm | 270 | 300 |
| Sidecut radius, mm | 6740 | 8300 |
| Stance width, mm | 455 | 584 |
| Setback, mm | 25 | 0 |
| Rider's weight, kg | 32-57 | 68- |
| Binding sizes | ||

