Servos are powered by the ESC's output to the receiver. If you're using a higher-strength servo than the ESC can support (usually greater than 20kg), you may experience 'brown-outs' where the radio signal can be interrupted and cause erratic driving. This can be helped by plugging a Glitch Buster into the receiver smoothing the current delivery. However, in some cases, you may need to install an external BEC.

The S6170 is a good solid standard digital servo that is lightweight and offers good performance in most 1/10 2WD applications.

• 5.76kg-cm (70 oz-in) torque at 4.8V - perfect for most 1/10 2WD vehicles
• Long lead for use in bigger chassis such as some short course trucks
• Servo can be installed without a servo extension
• 0.16 sec/60 degrees provides a quick response as a steering or throttle servo
• Waterproof case design protects electronic components