This Continental standard inner tube fits 27.5 in tires from 1.75 to 2.5 in wide and has a 42 mm Presta valve.

What it's for

A replacement or spare tube for 27.5 in (650b) mountain bike wheels. Continental lists the size range as 47-584 to 62-584, which covers tires from 1.75 to 2.5 in wide.

Compatibility

• Fits: 27.5 in (584 mm) tires from 1.75 to 2.5 in wide
• Valve: Presta, 42 mm long. Your rim needs a Presta size valve hole, and the valve has to reach through the rim with enough length for a pump head.
• How to check yours: Read the size on your tire sidewall. The second number of the ETRTO size should be 584 and the first between 47 and 62.

Specs

• Size: 27.5 x 1.75 to 2.5 in
• ETRTO: 47-584 to 62-584
• Valve: Presta, 42 mm
• Weight: 230 g