The Auto Sport tuned 20 has a 20 turn sport tuned motor limit, what this means is that you can use any, DC Brushed 540 size motor, as long as the number of turns on that motor are equal to or higher than 20.

The Auto Sport tuned 20 is a perfect entry level speed controller for anybody wanting to upgrade their old Speed Controller for a no nonsense 20 turn limit reversible electronic Speed Control without the added ease of no difficult setting up!

The Auto Sport tuned 20 uses the new automatic set up software which calibrates itself to your transmitter as you are actually using it!!! There is no set button or difficult set up, you simply plug it in and go! It's as easy as that!

The Auto Sport tuned 20 slots in the Viper range of Speed Controls, which means it has all the features that you would expect on a more expensive Speed Control! Features such as a built in failsafe and current limiters are standard on this entry level Speed Control.

A break down of the Auto Sport tuned 20 specification can be seen below

• NEW built in failsafe to protect against complete loss of signal or when out of range (compatible with all manufacturers receivers)**INDUSTRY FIRST**
• ABSOLUTE short circuit and motor overload protection
• 20 turn sport tuned motor limit
• 1.2A BEC
• Dual core microprocessor
• 4-8 cells input voltage
• 4 Layer super power circuit board
• Thermal integrated protection system
• Digital automatic set up
• Legendary 100% waterproof design
• Dimensions : L39.0mm x W34.0mm x H13.0mm
• Weight : 55g