DF02 Spur/Pinion

[sansoora]

Dear Pals,

Wondering if anyone can help with a pinion query. I have just changed the spur on my nephew's DF02 to a 55T, but I cannot find a pinion to fit, as the 55T has a smaller diameter than the original 61T. Anyone know which pinion is needed for this setup?

Thanks

[DeadMeat666]

As per the Tamiya DF02 manual, the stock spur gear should be 70t. I did notice that the TT01 does have 61t stock and 55t as an optional part, and they seem to look like they'd fit in a DF02.

Strange thing is, I don't think the DF02 is meant to take spur gears smaller than 70t. Even so, dropping down so drastically is most likely not a good idea, as it makes the gearing too high (not enough torque, too much load on the motor, etc)

Out of curiosity, what pinion size was the buggy running with the 61t spur?