While it certainly doesn't occur often, a snapped shift cable can quickly turn a ride sour, especially if you are far into the bush when it happens. Even though your rear derailleur will automatically shift down to the smallest cog (the most difficult gear), all is not lost. Instead of having to walk your bike up and over the slightest rise in the trail, it is possible to rig up a solution that allows you to get the bike into a more pedal-friendly gear choice simply by using the high limit screw.
What you'll need:
• A multi-tool that includes either a Phillips or hex key to fit your derailleur's limit screws.