Safe-D 'D'-shaped bore matches the motor shaft profile so drive and brakes stay engaged if the set-screw loosens

4-CH R304SB T-FHSS Telemetry Receiver

Reducing rotating mass at the spur gear helps improve throttle response and acceleration

it keys together with the input gear so you retain drive even if the attachment screw works loose - an ideal OEM replacement for your 6S transmission

Tekno TKR1654-17 R/C R/C Hub Adapt 17mm M6 Driveshaft Slash Stampd

Powerhobby Aluminum Front Wheel Hub Red MST RMX 2.5 Standard Servo Safe-D 'D'-shaped bore matches thePowerhobby Aluminum Front Wheel Hub Red MST RMX 2. 5 Replace with MST part number 230066