STI Extreme Duty Tube
- 3mm high quality butyl rubber
- 30% thicker than most heavy duty tubes
- Unbeatable performance and value
| SIZE | THICKNESS | VALVE |
|---|---|---|
| 100/100-18Â (4.00-18) | 3mm | TR-6 |
| 110/120/100-18Â (4.50/5.00-18) | 3mm | TR-6 |
| 100/90-19Â (4.00-19) | 3mm | TR-6 |
| 70/100-19Â (2.50/2.75-19) | 3mm | TR-4 |
| 110/120/90-19Â (4.50/5.00-19) | 3mm | TR-6 |
| 80/100-21Â (3.00/3.25-21) | 3mm | TR-6 |





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