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Old 12-13-2010, 05:03 PM
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Originally Posted by mini696 View Post
Can someone post the link to the buildup which showed the out of box modifications the JRX needs (ie chassis grinding). I can't find it and can't work out the correct search terms to do so.

Further, What will I need to do to get to a FDR of 4.0 since I will be running a 21.5T brushless in a VTA style class next year. I assume I will have to buy a smaller spur as my largest pinion is only 36T and that gives me an FDR of 6.5.

When i was running vta i had a 52 tooth pinion in it =D PRS sells pinions that big i think at one point iw as all the way up to 58t!!
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