Xwang

Here we are.
This is the bike with the saddle at the correct height:


Handlebar is already at the maximum height and probably I'm going to change it to transform to an urban bike.


Front unbranded original cantilever still not optimized to maximize mechanical leverage

Rear unbranded original cantilever set to try to maximize mechanical leverage

Shimano original front derailleur command

Rear unbranded original cantilever before optimization

Original Shimano rear derailleur, freewhell and chain


Original unbranded plastic brake command. The Shimano original rear derailleur command is a SL-MY20 which has lost the upper cover.


Original handlebar with commands.


Ofmega Sierra original crankset with broken external plastic finiture. The plastic part is not structural.

Ofmega Sierra original crankset with broken external plastic finiture. The plastic part is not structural.

This is a video of the strange longitudinal movement of the freewheel I've made:
Is it normal?
My brother's bike (which is exactly the same model than mine, which was bought the same day and which has been used exactly like mine) does the same thing.