How do I perform a grip shift cable replacement on my bicycle?

To perform a grip shift cable replacement on your bicycle, follow these steps:

1. Start by shifting the gears to the smallest cog on the rear derailleur.
2. Use a hex wrench to loosen the cable anchor bolt on the derailleur and remove the old cable.
3. Slide the new cable through the shifter and route it along the same path as the old cable.
4. Pull the cable tight and secure it by tightening the anchor bolt on the derailleur.
5. Test the shifting to ensure it is working smoothly.
6. Trim any excess cable and crimp a cable end cap to prevent fraying.

Remember to refer to your bicycle's specific manual for detailed instructions.