This extended aluminium seatpost is a lighter solution for Brompton bikes. This is not only an elegant solution but also saves a lot of weight compared to Brompton's Pentaclip solution. The seatpost set consists of an aluminium post, a connecting rod, two yokes, two 5mm bolts and a rail support cradle. Weight incl. the pentaclip: approx 328 grams Material: aluminium AL6061
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