Always needed. Quality tested and a great value, the 0.9mm thick butyl rubber innertube strikes the perfect balance between weight and durability
- Schrader valve with a removable valve core
- 0.9mm wall thickness
- Each tube passes a 24 hour air hold test prior to packaging
- Size: 20 x 1.75-2.5"
- Valve: 40mm Schrader Valve