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***Now Narrower Width!! ***
This is a transmission for 380 or similar small sized motors (typically found in the mini class 1:18th scale)
5mm outputs for greatly increased strength over the stock 4mm outputs (larger driveshafts will be required).
All transmissions now come fully assembled.
Dimensions = 2.558 x 2.037 tall. Approx 49g
Heat treated chromoly gears!
Uses 48 Pitch pinon gears.
12T pinion = 20:1 transmission ratio, or 75:1 final (AR44), or 67.5:1 final (AR44 w/OD gears)
18T pinion = 13.33 trans ratio, or 50:1 (AR44), or 45:1 (AR44 w/OD gears)
Personally, I like a 40 to 55:1 final drive ratio for a mini, depending on your motor and the weight of your rig.
What is a good pinion to start with? An 18T (48P) pinion is a good starting point for typical mini, then adjust to your personal preference, and your specific setup. 380 motors vary a lot, so match your gearing to your specific setup.
With each purchase you will get 1 complete assembled transmission