| Duty | Standard |
| For Rim Size | 21" |
| Inner Tube Valve Stem Type | TR-4 (Round Base) |
| Inner Tube Valve Stem Type EU | Tr-4 |
| Inner Tube Valve Stem Type EU 3 | TR-4 (round base) |
| Inner Tube Valve Stem Type US 2 | TR-4 (round base) |
| Material | Butyl Polymer |
| Material 2 | Butyl |
| Mounting Position | Rear |
| Mounting Position 2 | Front |
| Mounting Position 3 | Front/Rear |
| Product Name | Inner Tube |
| Rim Diameter | 21" |
| Tube Fits Tire Size | 90/100-21 |
| Tube Fits Tire Size 2 | 2.75-21 |
| Tube Fits Tire Size 3 | 3.60-21 |
| Tube Fits Tire Size 4 | 90/90-21 |
| Tube Fits Tire Size 5 | 100/80-21 |
| Tube Fits Tire Size 6 | 80/100-21 |
| Tube Fits Tire Size 7 | 3.00-21 |
| Type | Motorcycle |
| Units | Each |
| Category 1 | Tubes / Valve Stems |
| Average Delivery Time | 2-3 Days |
| Package Weight | 1.3000 |
| Package Length | 6.50 |
| Package Width | 5.50 |
| Package Height | 3.00 |
| Free Shipping (Lower 48) | Yes |
| Warranty | 90 Days |
| Brand | Parts Unlimited |
| Manufacturer Part Number | 0350-0350 |
Each tube is individually boxed with a full range of sizes and valve stem types clearly marked on each box end. INNER TUBE VALVE STEM TYPETr-4 (Round Base). INNER TUBE VALVE STEM TYPE EUTr-4. INNER TUBE VALVE STEM TYPE EU_3Tr-4 (Round Base).
