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campagnolo xenon 9v short change presents a lighter upper part and a rebalanced parallelogram. it’s a change that combines the sophisticated technology of the most advanced materials. it is light and incorporates an adjustment at the bottom nut. features: -change of 9v. -short rocker. -composite body. -light top. -rebalanced parallelogram. -the upper adjusting screw. -weight: 232 gr.