Simple but effective valve caps the constantly monitor tyre pressure and alert you of pressure loss.

Each cap has a minimum pressure rating, when tyre pressure is above the minimum a green ring shows - all OK. If pressure drops below the minimum rating, a red ring shows - time to inflate and check tyres.

Select the lowest P.S.I. limit nearest to the bike manufacturer's recommended tyre pressure.

• Simple but effective valve caps
• Constantly monitor tyre pressure
• Colour-coded display alerts of low pressure
• Supplied individually