Keeping tyres correctly inflated is good for your wallet and the planet, as the right pressures are key to efficient fuel consumption. Let them drop by only a few pounds, and you will start using more fuel. An easy way to regularly check and adjust pressure is with a mini compressor.

Powered via the cigar lighter, the best units will stop pumping air when the tyre is at the correct pressure. For our champion, we wanted an accurate gauge and rapid inflation, plus good storage for the lead, hose and adaptors.