The FSA Gossamer is a straightforward alloy seatpost built for riders who want reliability, simple adjustment, and a bit of setback for fit tuning. It’s a solid choice for road, gravel, commuting, or fitness bikes where durability matters more than shaving grams.
The single-bolt saddle clamp keeps setup simple and repeatable, making it easy to dial in saddle angle without fighting a complex hardware stack.
Key Features
• AL6061 aluminum tube with forged alloy head
• 20mm setback for fit and position adjustment
• Single-bolt NANO adjust saddle clamp
• Chromoly clamp hardware for durability
• Designed for everyday riding and long-term use
Compatibility & Use Notes
• Seatpost diameter: 31.6mm
• Length: 350mm
• Setback: 20mm
• Compatible with standard two-rail saddles
• Not compatible with frames requiring a different seatpost diameter
• Not designed for dropper-post applications
Service / Ownership Context
A single-bolt clamp is easy to work with but relies on proper torque to stay secure. Always grease the post or use assembly compound as recommended for your frame material. Set saddle angle carefully and recheck bolt torque after the first few rides.
Fit & Use Signals
• Your frame uses a 31.6mm seatpost
• You need setback to fine-tune saddle position
• You want simple, durable hardware
• Not a fit if your frame requires a different diameter
• Not a fit if you want a dropper or zero-setback post
