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Old 07-08-2014, 03:50 PM   #1
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Talking VTA GEARING IN TRF415 mssx

just got a trf 415 to run in the VTA class. running lrp 21.5 v20 and lrp flow. my question is on the gearing for the spur and pinio. what are people running and what is a good basic combo for the track down in Chula Vista Cali? thanks any suggestions would be great.
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Old 07-08-2014, 09:01 PM   #2
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Usual rule of thumb with my Tamiyas has been between 3.4:1 to 4.0:1. I find 3.45 to work great in blinky on most track layouts.
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Old 07-09-2014, 11:02 PM   #3
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do you have an example of the spur and pinion size you use
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Old 07-10-2014, 08:44 PM   #4
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Yep, usually use a 66T 48p spur and 41T 48p pinion.

If you have an iPhone there is a great gearchart program for it:

http://www.ashdownapps.co.uk/apps/ratio-calc/
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