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by LoCoCNC
Sat Jun 03, 2023 1:55 am
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This appears to be a complete Thorp Optima gear set

Seems to be both the
--->4670 optima over drive
--->4672 optima under drive
But I also have 46 and 48 t gears.
How do you swap the plastic? Press the metal part to split in two?
Also have 4738 Final Pinion
Probably going to use these in my Optima Pro build.
by TokyoProf
Mon Oct 02, 2023 12:35 am
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The original 1987 Winning Kyosho Ultima Machine up close

Here is a dedicated post with pictures of the winning 2WD machine from 1987 from my visit to the Kyosho booth.
The original JJ modified Kyosho Ultima and the trophy.