Plan for the worst and hope for the best. Careful planning (and packing) will get you out of almost any mechanical problem you encounter on the trailGary Perkin
Two spare tubes are a must for long ridesJosh Patterson / Immediate Media
Patch kits take up very little room in your pack and are a necessity when you’ve used your last tubeJosh Patterson / Immediate Media
A CO2 inflator and cartridges will get you rolling quicker, but a pump will work every timeJosh Patterson / Immediate Media
Never leave home without a good multi-tool, preferably one with a built-in chain toolJosh Patterson / Immediate Media
Many multi-tools have a tire lever built into them, they’re generally not as useful, nor as well constructed, as standalone leversJosh Patterson / Immediate Media
While modern air shocks are quite reliable, it’s still a good idea to pack a shock pump in case you develop a slow leak, or (more likely) if you find you need to fine-tune your suspensionDavid Rome / Immediate Media
If you’re likely to encounter multiple stream crossings or a chance of showers, a small bottle of chain lube with a peice of cloth to clean the chain is a good addition to your kitJosh Patterson / Immediate Media
Keeping a stick of lip balm (preferably with an SPF rating) in your pack is a good idea when riding in dry environmentsJosh Patterson / Immediate Media