How To Adjust Gear Cable Tension. Take care as the heads of the screws are easily damaged -. Disengage the outer casings from the gear cable stops on the frame drawing the exposed gear cable through the slot.

The gear cables run from the shifters on each of the handlebars to the front and rear derailleurs. If the pulley moves past the largest cog toward the spokes turn the limit screw marked L clockwise to tighten. Adjust the outer limit screw with an appropriately sized screwdriver.
Then make your adjustments you should be able to get it damn close with this method.
The gear cables run from the shifters on each of the handlebars to the front and rear derailleurs. The top pulley should align with the largest cog in the cassette. To adjust bike gears start by turning your bike upside down and resting it on the seat and handlebars. The gear cables run from the shifters on each of the handlebars to the front and rear derailleurs.
