The Aero 20 x 1752125 Junior Inner Tube is a dependable replacement tube designed for junior bikes fitted with 20inch wheels Suitable for tyres ranging from 175 to 2125 inches wide it provides a secure fit and reliable air retention for everyday riding Whether replacing a punctured tube or carrying a spare for emergencies this inner tube helps keep young riders rolling with confidenceFitted with an Auto Valve AV also known as a Schrader valve this tube is compatible with most standard bicycle pumps and makes inflation quick and convenient Manufactured from durable butyl rubber it offers excellent puncture resistance and longlasting performance for riding around the neighbourhood at the park or on family cycling adventures

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