27.5" x 1.90/2.50 Self-Sealing 48 mm Presta Valve Inner Tube size-g-13-n-10062-b-2587 No adjustment necessary

No adjustment necessary

Ideal for beginners as they let the leg move freely

The clear polycarbonate backboard is 3 mm thick

The Flex-H grooves make the sole more flexible

Reinforced inserts and assemblies for added strength

27.5" x 1.90/2.50 Self-Sealing 48 mm Presta Valve Inner Tube size-g-13-n-10062-b-2587 No adjustment necessaryThis inner tube allows you to continue cycling when a conventional inner tube would have gone flat. To remove your inner tube, the tools you'll need are: Remove your inner tube easily with BTWIN tyre levers. Inflating a tyre: Inflate your tyre slowly, following the pressure indicated on the sidewall (in PSI or bars). Check that it is correctly positioned throughout the inflation process. Weight: 415 g Pro advice: Check your tyre pressure before every