The upgraded G-force T42 is designed with a rear light. The rear light will come on when you apply either the left or right brake lever. This is to alert others that you are slowing down or coming to a stop. If you realize that the taillight does not work, you can take the following approach to fix the problem.
Step 1: Locate the brake bolts, which are on the obvious places of the brake levers.
Step 2: Tighten or loosen the bolts, squeeze either of or both the brake levers to check the taillight.
Step 3: If the taillight still does not come on, adjust the locking nuts under the brake levers with a screwdriver.
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