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Old 2012.08.14, 05:28 AM   #7
herman
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Join Date: Nov 2001
Location: makati, philippines
Posts: 8,702
no worries felix2010... still a newbie when it comes to these gear ratios...

i do know that lower toothed pinions have longer run times, better acceleration (more torque) but lower top speed

conversely higher toothed pinions have shorter run times, lower acceleration (less torque) but higher top speed

lower toothed pinions produce higher gear ratios (53/6 = 8.83:1) compared to higher toothed pinions (provided that the spur gear is the same - 53/9 = 5.8:1)

so a gear ratio of 6.38:1 to 5.34:1 should be fine...
and anything lower than 5.0:1 (i.e. 53/12 = 4.41:1) will loose performance?

i think that these motors are torquey and lower pinions (higher gear ratios) may overload the electronics and cause them to fry... can anybody confirm this?
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