Inner tube 49N STD 12 × 1.75–2.25″ Schrader 33 mm: a 0.9 mm butyl wall and a Schrader valve.
| Feature | Specification |
|---|---|
| Size | 12 × 1.75–2.25 in |
| Valve | Schrader |
| Valve length | 33 mm |
| Material | Butyl |
| Wall thickness | 0.9 mm |
| Construction | Automated hot-feed extrusion; hydraulic press-cured vulcanization |
| Valve finish | Low-lead nickel-plated, threaded valve |
| Valve core | Non-removable |
| Packaging colour code | Green |