Extra bearing in 210 gearbox.
 

After some raceing with the 210, the small 2,5*5*8 bearing gets powdered.
To make the changing interval of this bearing longer, i have mounted one more 2,5*5*8 bearing inside the gearboxs, at the opposite side off the 310242 gear. And changing the 310243 spaser white two TD 714001 CRUNCH SPACERS. This works fine... :)