Q-Tubes Thorn Resistant tubes feature 4mm thick butyl rubber in the tread area tapering to 2mm sidewalls.

• Removable Presta and Schrader valve cores
• Q-Tubes Thorn Resistant packaging features environmentally friendly soy ink printing on recycled cardboard

• Labeled Size: 12-1/2 x 1.75-2.125
• Valve Core: Removable
• Shaft Type: Smooth
• ISO Width (mm): 47mm, 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm, 55mm, 56mm, 57mm, 58mm, 59mm, 60mm, 61mm, 62mm
• Tube Compound: Butyl
• ISO Diameter: 203 / 12.5"
• Valve: Standard Schrader
• Flat Protection: Thorn Resistant