BRN Puncture-Proof Inner Tube 20 x 1.75-2.125 Schrader Valve 40mm

BRN Puncture-Proof Inner Tube 20 x 1.75-2.125 Schrader Valve 40mm

- Super-strong inner tube that does not allow punctures by thorns or sharp debris
- Particularly suitable for those who use the bike daily
- 3.6mm thick tread side