SP509
ISO 4210 - M approved,EN 17404
Spring suspension seatpost
2D forged head, 6061-T6
Travel: 45mm
Diameter(Normal): 26.8/27.0/27.2mm Diameter(Over): 30.0~31.6mm
Length: 300/350mm
Offset: 10mm
Weight: 510g(27.2mmx350mm)