[woodcote]

With the RTR cars we do want to keep to the stock manufacturers’ parts. Browsing the F555 on the Cartrix website, it has a TX-1 motor which is the standard 13k motor for most of the Cartrix F1 models and is available as a spare. So is the 9T 1058-09 pinion, which is the part specified for both the F555 car and the TX-1 motor and is listed as fitting a 2mm shaft.

Cartrix are distributed in the UK by Steve at Staffs Slot Cars. You could contact Steve to see how easy it would be to get hold of spares (he might have some handy) or whether the Cartrix pinions are the same as the Mitoos M209 ones. I have a feeling they are exactly the same part - which would make sense as Mitoos and Cartrix are now owned by the same company. Mitoos pinions are available from Pendles.