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The latest generation of Principia’s trademark elliptical bottom bracket and head tube design. The increased diameter of the idsection of the tubes adds rigidity and strength without increasing weight. The ELLIPSE PROJECT gives you more efficient power transfer and more control when it counts.
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Carbon seat posts are generally light and strong but can be fragile when fitted incorrectly. The pressure that the seat post is subjected to when tightening the seat clamp can be critical and even structurally fatal. Principia’s unique CARBON FRIENDLY SEAT TUBE gently distributes the pressure load over a larger area of the seat post. This clever design feature is safer for both you and your seat post.
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Traditional frame design uses tubing with identical diameters and wall thicknesses for all frame sizes. Either this makes the smaller frame sizes too heavy or the larger frame sizes insufficiently strong and stiff. Principia’s DESIGN 2 SIZE technology optimizes the tubing specifications for the individual frame sizes ensuring optimum riding characteristics for riders of all sizes.
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Principia’s proprietary carbon technology combines first class carbon filaments with a newly developed layup technique. WPC technology allows maximum control of the direction of the fibres enabling us to carefully finetune key properties such as stiffness, strength and comfort. WEAVED PRINCIPIA CARBON exclusively uses Mitsubishi filaments with tensile strenghts ranging from 12 (C12T) to 40 (C40T) tonnes per square centimetre.
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