aluminium MTB and road bike seatposts from Ritchey, Race Face, Thomson, Syntace and Zipp
Ritchey WCS 1-Bolt Mast Topper seatpost head, inner diameter 34.9 mm, length 70 mm, offset 25 mm, hpblack
Tune seat post, heavy-duty model, diameter 27.2 mm, offset 0 mm, length 340 mm, colour green
Tune seatpost: Sturdy model, diameter 31.6 mm, offset 0 mm, length 340 mm, colour froggy green
Tune seatpost, sturdy model, colour: black, diameter: 31.6 mm, offset: 0 mm, length: 420 mm, colour: black
Tune seatpost, heavy-duty model, colour black, diameter 31.6 mm, offset 0 mm, length 420 mm, colour red
Tune seat post, heavy-duty model, colour: black, diameter: 31.6 mm, offset: 0 mm, length: 420 mm, colour: silver