49°N Fat Innertube
Best lightweight replacement tube for fatbike riders seeking reliable performance.
These tubes manage the bulk of fatbike tires by shaving off weight with a thinner wall construction, without sacrificing durability. Each one is individually pressure-tested for 24 hours, ensuring you won't be stranded on the trail with a dud right out of the box.
$18.00
Who it's for
- Commuters needing reliable protection against common road debris
- Budget-conscious cyclists seeking dependable flat prevention
- Daily riders wanting simple, easy-to-maintain equipment
Who should skip it
- Performance riders prioritizing fast acceleration and climbing speed
- Efficiency-focused cyclists seeking minimal rolling resistance
- Bikepackers needing minimal space for emergency spares
Performance breakdown
Weight Efficiency
The 0.7mm wall thickness significantly reduces rotational mass for fatbike tires.
Quality Assurance
Every unit undergoes a rigorous 24-hour inflation test before leaving the factory.
Valve Versatility
Removable cores and threaded stems offer excellent compatibility with various pump heads.
Rim Compatibility
The 48mm Presta valve length easily clears most double-wall fatbike rims.
Manufacturing Precision
Automated hot-feed extrusion ensures consistent rubber thickness and structural integrity.
Installation Ease
Standard sizing and threaded stems make for straightforward, hassle-free tire seating.
Key Specs
Valve Type
P/V Presta valve (French valve)
Valve Length
48mm
Wall Thickness
0.7mm
Valve Material
Low-lead nickel-plated
Core
Removable
Still have a question?
Ask Metto anything about the 49°N Fat Innertube before you decide.
