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Pirelli's Heavy Duty inner tube is built for off-road and motocross use, with a thicker rubber wall than a standard tube to resist pinch flats and punctures on rough trails. It uses a TR-4 straight, center-mounted metal valve stem and is sized for 19-inch dirt bike tires.
| Part Number | 2107910 |
|---|---|
| Material | Natural rubber blend |
| Thickness | Extra-thick vs. standard tube (exact mm not published) |
| Valve Type | TR-4 (center-mounted metal stem) |
| Application | Dirt bike/motocross/enduro, 19-inch fitments |
Verified from Garamoto’s catalog & fitment data.