How to adjust the front derailleur on a mountain bike for optimal performance?

To adjust the front derailleur on a mountain bike for optimal performance, follow these steps:

1. Shift the chain onto the smallest chainring in the front and the largest cog in the back.
2. Loosen the cable tension bolt on the derailleur.
3. Adjust the inner limit screw until the chain is aligned with the inner chainring without rubbing.
4. Pull the cable tight and tighten the cable tension bolt.
5. Shift the chain onto the largest chainring in the front and the smallest cog in the back.
6. Adjust the outer limit screw until the chain is aligned with the outer chainring without rubbing.
7. Test the shifting by cycling through the gears and make any necessary fine adjustments.

Remember to test ride the bike to ensure smooth and accurate shifting.