SuperCNJ wrote: ↑10 May 2017, 15:57
I don't think it is limited to French cars. It may be model dependant.
And even day of assembly dependant
A friend of mine who race with bikes once told me there are friday (or it was monday?) bikes and normal bikes, refering to the fact that even same model can show dramatic differences between units due to the mood of the workers who did the assembly
When he acquired a new bike, the first thing his mechanic did was dissasemble the whole bike and re-assemble, with no mods at all, only reasembling to be sure everything is assembled as it should be
He said it made a difference, and he actually could compete with same model bikes with some mods, when his had no mods at all (and he´s a 100kg rider!), only everything correctly assembled, bearings with just the neccessary grease and no more, every movable part tightened to the correct torque, etc. This does remove a considerable amount of drag/friction in the whole drivetrain, wich equals to a standard bike with some mod to increase power
This is perfomance related more than anything else, but I´m sure long term reliability is also severly affected by this on production cars