AmazonIt is a practical and compact accessory that allows you to inflate wheels with Presta valve (common on road and mountain bikes) using pumps or compressors designed for Schrader valves (those commonly found on cars and some urban bikes).
It is a practical and compact accessory that allows you to inflate wheels with Presta valve (common on road and mountain bikes) using pumps or compressors designed for Schrader valves (those commonly found on cars and some urban bikes).