Vario seatposts have arrived in cross country, but are still mostly heavy. With the new Transfer SL, Fox is launching what is probably the lightest seatpost on the market. This is available in 27.2, 30.9 and 31.6 millimeter diameters and offers 50 or 70, and 70 or 100 millimeter travel for thicker posts. The weight of the mechanical post starts at 327 grams - without holes, of course.