Do the gears* on your bike not shift properly? Maybe your bike is just slow at switching gears? Sounds like you might need a derailleur adjustment! One of our service techs will inspect the derailleur (front or rear) as well as the derailleur cable and housing and make any necessary adjustments to the derailleur. The price for the derailleur adjust** includes the labour to replace the cable and housing if needed.
* Does your bike have a front and rear derailluer? If so and both aren't working properly, then you may need two derailleur adjustments. A front & rear derailleur adjustment costs $30.
** The cost of the derailleur cable and housing is not included in the derailleur adjust price.