FSA Gossamer Seatpost 31.6 x 350mm SB20 NANO MFPN=00.2518.059.009 is an internal collar

is an internal collar

Significantly lighter than GXP system Bottom Bracket Shell I

Tacky texture provides excellent grip with or without gloves in all weather conditions

Front and Rear application Flat Protection Tread TPI 60 Color Black/Reflective Weight 899 Designed for ebike Yes Defined Color Black ISO Width (mm) 42 ISO Diameter 622 / Road / 29" keyword search electric bikes

Bracket No Internal Lock Size Metric 85cm Primary Color Black Thickness In mm 5

FSA Gossamer Seatpost 31.6 x 350mm SB20 NANO MFPN=00.2518.059.009 is an internal collarThe Gossamer seatpost features a forged 6061 T6 aluminum shaft and a lightweight NANO saddle clamp with single bolt adjustment. Its anodized finish and wide angle range make it easy to dial in your fit offering strength adjustability and sleek aesthetics for road cyclists seeking dependable performance.