Disassembling the gear bearings

Once we got the tool to unscrew the gears from the wheel (picture), we confirmed that the bearings were completely damaged.

We couldn't find a set of 5 gears (as the original one) to replace the damaged one. We've only found sets with 6, 7, 8 or even 9 gears, but they wouldn't fit because they are wider. So we have finally mounted 1 gear only.

It's quite strange to see a mountain bike with only one gear in the rear wheel, but this is what we have right now.

Next surprise: the gear we have mounted is wider than the chain. Did you know that bike gears are available in different widths? Neither did we. We are actually asking ourselves if we really got a bicycle gear... Anyways, the width of a gear is nothing that a miter radial saw cannot reduce...

After some hard work, finally the wheel fits in the bike (and the chain in the gear;)

Just waiting for the battery, now.