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This extended aluminium seatpost is approx 130 gram lighter than the Brompton's standard steel seatpost and Pentaclip and 50mm longer than a standard seatpost.
This is not only an elegant solution but also saves a lot of weight compared to Brompton's Pentaclip solution. The seatpost is flared at the bottom, like the original Brompton seatpost.
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 392 grams
Material: aluminium AL6061
London Craftwork Extended Lightweight Seatpost + Clip for BROMPTON (130g lighter) SILVER