5 days and 72 viewers later and only BBJ has any knowledge of these pinions? Does anybody know any more info on these? I've search google from a-z and came up with near zero. So as I understand it there is 32,48 and 64dp imperial. And a possibility of there being a 48dp metric for tamiya etc. I think there might also be a 64dp for tamiya etc and I think there was a 0.4 module for kyosho but not 100% sure on this. But my question is how can I identify the difference? Do these pinions/spurs have markings on them to notify the user wether they are imperial/metric/0.4module.

Can someone please shed some light on this pinion/spur delima for me please