Hi, I have followed your vids because you cover small bikes in some detail
A few comments -
Your presentation and format is improving
The power rating is KW, kilowatts, not KWh, Kilowatt hours is the amount of energy consumed over an hour. If something is rated at 15KW and is run for an hour it consumes 15KWh, if run for 2 hours it consumes 30KWh. With a petrol motorbike the figure varies where it is defined as being measured, either at the engine output or at the back wheel with transmission losses, usually 8 to 10%. Its just a very rough indicator but helpful. It becomes much more vague with electric motors as the output there is dependent on Volts and Amps drawn and there is no such animal as a 1KW electric motor, it is a notional rating, it depends how much you put through it until the winding insulation melts, often referred to as hotrodding or over-volting. For this reason the ebike legislation is a nonsense.
Rust is not caused by microbiological action but is the ferrous material or steel oxidizing, effectively the steel can be regarded burning but very very slowly. A hot exhaust system will have water condensation onto it which hastens the process, accelerates the burn.
Stainless steel is not in fact stainless so it is a clever marketing name. Stainless steel has a chromium content, high enough that it stops rusting, other patina may occur.
Other than that keep the camera rolling
A modern small motorbike is a fantastic deal and the Chinese quality assurance has improved remarkably and as you have pointed out many big brands source their products from China. Their lightweight is helpful for many reasons, handling, maintenance, fuel economy. The only real drawback for most is acceleration for overtaking. Such a deal sadly would not be available if the product was produced in a G7 country, its basic labour cost economics.
Maintenance is the big issue with a small engine. Fiddling around to get more power output may be fun but chances are a shorter engine lifespan and invalidating insurance which may become critical with an accident.
The two best motor sellers of all time are the VW Beetle for a car and the Honda Cub for a motorbike, both had low power outputs and high reliability.
Take care on the road and dont trust car drivers
Cheers
BSc M Eng
Zombie drivers - residential evil - Most folk dont think it will happen to them and bicycle or motorbike it can : )
Stats are not good and doubling of the numbers of the old age demographic which includes drivers who have markedly slow reactions wont help. AI cars with autopilot are questionable for the urban environment, genrally those working in that area think the urban environment is too complex and the ethics of who do you choose to kill remain unsolved
If you want to do a scarey movie do a vid about dealing with insurance companies hahaha, not least them putting private eyes on people as the case moves towards the court in the hope of catching somebody out. Or the issue of non-compliance which has affected some forces service claimants with field casuality claims from war. Non compliance is refusing meds such as addictive opiods for quite valid reasons and can halve compensation. Finally review the red book which is the court reference document which contains such gems as losing an arm is worth about 70K and both arms about 140K, legs much the same. This is why when the war wounded started coming home with IED injuries the families where in turn shellshocked to find just how little compensation their injured recieved. Its all the same system - civil injury claims or war injury claims
So all I can say is ensure your insurance is valid and ride safe.
Keep up with the vids