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Cain · 05.15.2009, 06:07 PM

i was told that if the seals are red, its the new seals, if they are black, its the old seals.

as for diff comparison sizes, the box has a picture on the box comparing the two, I think I posted a pic of that comparing I am assuming the previous standard size diffs versus the new small diffs.

as for gearing, on a 2200kv motor, the 14T pinion on 4S assuming a 4.5in tire diameter (ala crimefighters) from the RC Calculation website gives a speed of about 40mph. Usually you gear for that speed to start with in general.

I would say if you want mid 40s, go with a 16T pinion

http://scriptasylum.com/rc_speed/_top_speed.html

too bad the coupon for answerrcusa site doesn't work for anything under $40. 20% off would be nice.

	(#144)
Cain RC-Monster Carbon Fiber Offline Posts: 406 Join Date: Jan 2008	05.15.2009, 06:07 PM i was told that if the seals are red, its the new seals, if they are black, its the old seals. as for diff comparison sizes, the box has a picture on the box comparing the two, I think I posted a pic of that comparing I am assuming the previous standard size diffs versus the new small diffs. as for gearing, on a 2200kv motor, the 14T pinion on 4S assuming a 4.5in tire diameter (ala crimefighters) from the RC Calculation website gives a speed of about 40mph. Usually you gear for that speed to start with in general. I would say if you want mid 40s, go with a 16T pinion http://scriptasylum.com/rc_speed/_top_speed.html too bad the coupon for answerrcusa site doesn't work for anything under $40. 20% off would be nice.