Park Tool TSI-1 Tubeless Sealant Injector
Best tool for clean, efficient tubeless tire sealant application.
This tool streamlines tubeless maintenance by allowing sealant management directly through the valve stem. It eliminates the messy process of unseating tires, providing a clean and precise way to top off or extract fluid for consistent performance.
$28.95
at
ATX Bikes
Who it's for
- Cyclists who want to add sealant without the usual mess
- Home mechanics seeking an all-in-one tool for tubeless maintenance
- Riders needing to maintain tubeless setups without full tire removal
Who should skip it
- Users of specific, particle-heavy tubeless sealants
- Individuals who prefer low-maintenance tools after use
- Professional bike shops or very experienced home mechanics
Performance breakdown
Application Precision
Direct valve injection eliminates messy spills and wasted sealant entirely.
Workflow Efficiency
Bypassing tire unseating saves significant time during routine maintenance.
Build Quality
Durable plastic construction withstands repeated use without degrading or leaking.
Measurement Accuracy
Clear, oversized markings ensure exact sealant dosing for optimal performance.
Valve Compatibility
Works flawlessly with removable-core Presta valves but limited elsewhere.
Ease of Use
Intuitive design makes tubeless maintenance accessible for even novice mechanics.
Key Specs
Capacity
100 cc
Sealant volume
3.5 fl. oz.
Tube length
120 mm
Tube diameter
3.5 mm
Valve compatibility
Presta with removable cores
Intended bicycle types
Road and Mountain
Installation difficulty
Easy
Material
Plastic syringe body
Know before you buy
Still have a question?
Ask Metto anything about the Park Tool TSI-1 Tubeless Sealant Injector before you decide.
