Quote:
Originally Posted by Coreypetro
Yeah, I checked out that 2 speed kit on the Traxxas site and it looks like you need to manually switch gears from the transmitter not like the self shifting trans on my nitro trucks. What's up with that? Who wants to buy a 3 channel transmitter for that?
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Auto shifting 2 speeds are used on nitro vehicles because of the lack of low rpm torque produce by a nitro motor. It helps them accelerate quickly and also reach high speeds. An electric, especially brushless motor has very linear torque, and lots of it, so a low 1st gear is not needed. Some elec. models come with a manual shifting 2 speed to make driving in different terrain easier. Say you wanted to drive up a steep hill, you could shift into 1st and power your way up. But after that, you wanted to cruise down some trails, just shift it into 2nd and goose the throttle.
But a properly geared brushless motor and some lipos will tear off the line and make your pants heavy with its speed.
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