48dp to 64dp gearing

[jasjeet]

Looking to change my pinion and spur from 48dp to 64dp because the noise is annoying

Currently the FDR is 5.7 with pinion 25t and Spur 84t.

Looking to match the FDR (internal ratio of 1.7) with 64dp but worried about the fitting.

So far ive got my eye on the 108t Spur and 32t Pinion.

On my current setup i have barely any space to get a larger pinion or spur.

Car is Xray T2 008.

Anyone got any experience? I hear if you match the Ratio the actual diameters of the gears are the same, but not sure as there is obviously more teeth.