Mountain Bike Front Derailleur Adjustment Indexing

Pedal the bike and shift the front to the biggest cog and the back to the smallest gear.

Mountain bike front derailleur adjustment indexing. This should place the outer cage plate of the front derailleur directly above the outer chainring. Shift the derailleur to the middle front chainring. A penny makes a great feeler gauge as it is about 1 5mm thick. Align the high end of your derailleur.

With the bike held off the ground and the chain now on the largest cog at the back test the front derailleur by moving the chain between the smallest and next chainring using the gear lever. The chain should be complete to the right on the bike and farthest from the bike frame. How to fix the shifting on your bike. In this video.

The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of the rear derailleur system. Turn the h limit screw until the derailleur is 2 3 mm on either side of the chain so that it has plenty of space to move. However an unhappy front derailleur needn t mean a trip to the bike shop. Accurate front derailleur indexing is critical to maintaining fast fault free front shifting.

In this video we ll show you how to properly set. The majority of front shifting problems can be solved with basic adjustments to the limit screws and index setting of the front derailleur system.