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KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver

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Low Price: $254.00
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KO’s EX-2 is an intermediate level transmitter that benefits from KO’s Patented K.I.Y. system. The EX-2 is a 4 channel system with a variety of pro level features and functions at a price that puts KO quality within the reach of the masses. 

The lightweight transmitter design comes in at a scant 507 grams (excluding batteries). The LCD screen can be set in one of two positions, and an adjustable trigger allows for greater comfort and personalization. EX-1 K.I.Y. steering units, grip units are compatible with this system and users can later upgrade to the EX-1 K.I.Y. system by only purchasing the EX-1 K.I.Y. master unit. System includes the KR-241FH 4 channel receiver. 


  • High performance CPU & 2.7" LCD: Using a similar CPU to the EX-1 provides a super linear and fast response. Each menu is displayed like an icon to make it easy to search and the menu tree is useful for setting your vehicle.
  • 90 Degrees Conversion LCD Positions: The LCD screen can be placed in two directions for a preferred viewing position.
  • Compact and Light Weight Master Unit: The Master Unit is lighter and the renewed design achieves a new weight balance. The EX-2 is very compact and light weight making it very useful for your use.
  • Trigger Position Adjustable 3D trigger: Using KO's unique 3D trigger and trigger position adjustment allows for comfort for all hand and finger sizes.
  • EX-2 Short Antenna: The short antenna design reduces obstructions and performance offered is very linear and connected to the system.
  • K.I.Y Option Parts Compatible: Utilizing the Patented K.I.Y system allows for Steering Units, Grip Units, Battery Stand and Grip Pads to be used with the EX-2 as upgrades to your system.

Steering Unit: 10506 Steering Unit EX-1
Grip Unit: Basic Grip Unit
Receiver: KR-241FH
Operating system: steering wheel & throttle trigger
Number of channels: 4
Transmit frequency band: 2.4GHz
Neutral pulse: 1.5msec
Power source: RO3/AAA/UM4 battery x 4, or 4 cell battery pack (not included)
Current consumption: 150mA

This product was added to our catalog on August 14, 2015

Verified Owner
Thursday, Aug 27 2015 (about 4 years ago)
KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver
I've only had this radio for about a week now but I am very impressed and happy with my purchase! In fact, the radio/receiver exceeded my expectation and improved the driving dynamics of my car (Team Associated B5M). The EX-2 radio is very smooth and fast! It has loads of features that should suit any RC enthusiast. It's not listed in the specs, but the radio 'speed' is just as fast as it's big brother, the EX-1. So, the speed is determined by the receiver. The EX-2 KR-241FH receiver is rated at 4.0ms, while the receiver that comes with the EX-1 is rated at 2.8ms. The 4.0ms is faster than many radios, even some that are $100+ more expensive. If you are looking for a radio in the $200 to $300 price range, I would highly recommend the EX-2!
Verified Owner
Tuesday, Dec 29 2015 (about 3 years ago)
KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver
Simply the coolest radio system available. For me it was either this or the excellent Airtronics MT-4S. The MT-4S is lighter and has telemetry (quite useful if you use their Vortex ESC). However, I chose the EX-2 because I could not resist the customization/upgrade options and the performance per dollar is fantastic. I love this radio. It looks, feels and performs like a weapon. The KIY concept is a very good one that saves you money and allows the system to be partially or fully upgraded but more importantly you can actually replace damaged components or modules. Just a great design.
Verified Owner
Sunday, Oct 18 2015 (about 4 years ago)
KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver
Great radio for the money! Super fast.only dislike is that the screen shows english and Chinese language at the same time.looks cuttered.and takes a while to get use to it.
Verified Owner
Sunday, Jan 27 2019 (10 months ago)
KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver
I really like this radio, instruction manual isn't that great and I'm barely using all of the features it offers but I purchased for the response time that other reviewers mentioned and it doesn't disappoint.

the menu screen is all in english so it appears that the newer ones don't have both engiish/japanese like other reviewers have mentioned.
Verified Owner
Sunday, Apr 8 2018 (about a year ago)
KO Propo EX-2 KIY 2.4GHz FHSS Radio System w/KR-241FH Receiver
A pretty good Radio,on set up,Have not rain it with my Truggy yet.The only thing I disk like is it use battery,I wish it use a LIpo battery,But am still given it a 5 do to the quatly of it build.