What it does: Replacement seatpost head designed to fit most singlepin lockout seatposts. Restores a secure saddle connection after damage or wear. Why you need it: Quickly replaces a broken or worn seatpost head so you can get back on the road or trail without buying a whole seatpost. Easy to install and use, saving time and cost. Compatibility: Fits most singlepin lockout seatposts and standard saddle clamps that use a singlepin locking system. Size: Compact clamp head measures 5.6 cm x 3.2 cm (2.20 in x 1.26 in), suitable for common saddle tube dimensions. Material and durability: Machined from aluminum alloy for a sturdy, durable and lightweight replacement part that holds up to regular use. Performance: Provides a reliable clamp for your saddle, restoring proper alignment and stability for comfortable riding. Easy installation: Simple to mount and adjust with basic tools — ideal for quick field repairs or routine maintenance. Use scenarios 1) Commuter : a damaged seatpost head after an impact to restore a stable saddle for daily commuting. 2) Trail maintenance: Keep this lightweight aluminum replacement in your toolkit for quick fixes on mountain bike rides where a singlepin lockout seatpost is used. 3) Touring or spare part: Carry as a compact spare on long rides or install at home to avoid replacing the entire seatpost. What you get: A single, readytoinstall bicycle saddle tube head that serves as a direct replacement for damaged seatpost heads on compatible singlepin lockout systems.