Step 1
Remove the battery from its seat, You will notice some space between the two sections of the battery seat, as shown in pic.1.
Pic. 1
Step 2
Loosen all the 4 torx screws under the downtube, as in pic. 2 and 3.
Pic. 2
Pic. 3
Step 3
Match the 2 sections pulling down the upper one and removing the space between them as in pic.4.
Pic. 4
Tighten the screws holding the 2 sections together.
Pic. 5