Universal aluminium seatpost mount suitable for mounting a rear bikepacking bag, larger saddlebag, bottle basket, tail light and more. Great thing for e-bikes and small bike frames. material: aluminium For seatposts: ø27.2 - ø31.6 mm Compatibility: bike baskets, tail lights, Topeak BackLoader Dimensions: 13.6 x 6.2 x 4.6 cm Weight: 65 g Art.No.: TEPM1