The Q-Tubes Standard Line Presta Valve tubes feature QBP’s widest variety of tube sizes and valve lengths with a proven record of high quality control and consistent availability.
| Weight | 118 |
| Valve | Presta Short 32-40mm |
| ISO Diameter | 406 / 20″ BMX |
| ISO Width | 40 |
| ISO Width | 41 |
| ISO Width | 42 |
| ISO Width | 43 |
| ISO Width | 44 |
| ISO Width | 45 |
| ISO Width | 46 |
| ISO Width | 47 |
| Labeled Size | 20 x 1.5-1.75 |
| Tube Compound | Butyl |
| Valve Core | Removable |
| Wall Thickess | .9 |
| Shaft Type | Threaded |
