Always carry a patch kit alongside the spare tube and I always patch as I go. The spare tube is emergencies only. The only time I had to use that and I found that it had 6 patches on it so got home and bought 6 tubes to replace the Patched ones in the wheels. Used four of them so far as I reckon that 6 patches is enough on one tube. Counted 8 one one tube so about time they got replaced.
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How long was I in the army? Five foot seven.
Spike Milligan