[QUOTE=Dragontune;718839]I am a die hard fans of the HotShot, spent half year time to built this up. Now ready to go.
To increase the overall performance, first of all I decided to modify the draive chain
1) Designed and DIY a spur gear with slipper
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2) DIY the ball diff. to replace the original one
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3) Change all the gear axle to hollow one
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4) overall result for the gear box
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