vertical adjustment is not available and not necessary in this case

Material Steel 

Size 18x20x3.18 cm; 

Seat Post Diameter: Ø 31.8 mm ( frame )

Seat slide pipe Ø 22.2 mm

Seatpost Length: 70mm; 

Cantilever Length Top-to-Bend: 220mm 

Weight 0.5

Original Project 346 T Seat Post for your Basman. This seat post is specially made for the Basman and fits any kind of Basman. It might also fit different other frames. Made from sturdy steel it withstands a lot of weight.