KO Propo 80643 - EX-RR ST2 Racing Transmitter with KR-415FHD Receiver  [KO-80643]

KO Propo 80643 - EX-RR ST2 w/ KR-415FHD Short (Ver2.12 Software installed) (10643)
Price:
CAD$589.90
Brand:
KO Propo
Model:
KO-80643
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Take Lap Times Down with KO Propo EX-RR ST2

The KO Propo 80643 - EX-RR ST2 transmitter gives club and track racers precise steering and throttle feel. Running Ver2.12 software and bundled with the KR-415FHD short receiver, it is built to keep inputs crisp and predictable under race conditions.

Tuning Tools for Consistent Handling

The EX-RR ST2 exposes key tuning options so you can adjust steering curves, expo and throttle mapping to match tyre grip and track layout. The KR-415FHD receiver helps maintain a stable link, reducing input lag and improving driver confidence during hard laps.

Specifications

  • Software Version: Ver2.12
  • Receiver Model: KR-415FHD Short
  • Compatibility: Designed for RC car models

For racers focused on consistency and lap performance, the KO Propo EX-RR ST2 offers a balanced mix of advanced setup options and dependable receiver performance.
Remark :
Due to limited stock availability, please notice that some KO Propo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

Will the EX-RR ST2 work with my 2.4GHz servos and ESC?

The EX-RR ST2 is compatible with standard 2.4GHz servos and most modern ESCs, but you should verify connector types and set appropriate fail-safe and endpoints before running.

How do I update to Ver2.12 firmware?

Follow KO Propo's official update procedure using the recommended cable or USB interface to flash Ver2.12, and back up your profiles before applying the update.

Can I adjust steering and throttle curves between runs?

Yes, the transmitter supports quick trims and profile changes so you can fine-tune steering and throttle behaviour between heats to suit track conditions.

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