Promax SP-1 Seatpost - 26.8 x 400mm Black Topeak but a few derailleur hangers

but a few derailleur hangers don’t meet the spec

Marine-grade grease and robust bearing seals complete the package in terms of durability

A built in tension gauge makes precise binding adjustment easy

396 Defined Color Black Dimensions 13

AeroTrack wheels feature a 27mm deep (19

Promax SP-1 Seatpost - 26.8 x 400mm Black Topeak but a few derailleur hangersThe SP 1 seatpost is made using lightweight 2014 aluminum alloy tubing and a cold forged aluminum alloy head. The two bolt head design ensures solid seat positioning and plenty of adjustability. Made with lightweight 2014 aluminum alloy tubing and a cold forged aluminum alloy head Clamp Style Standard Rails Color Black Defined Color Black Diameter 26. 8 Length 400 Material Aluminum Offset (mm) 20