KTM Connectivity Unit Offroad on my 2025 KTM 350XCF: 350 or 250 - You Choose!

[@endurorideraja6766]

thanks for the video link! this helps a lot

[@mxengineer1]

The ability to change the engine power characteristics with the Connectivity Unit Offroad is very cool!

[@endurorideraja6766]

@ yeah I want it for the reason you mentioned. 250 power in the woods, and if I happen to go on track or street, then I can amp up the power for that. Pretty awesome to think you can do that, plus customize the maps

[@bcoffroadriding7001]

That was a very detailed and useful video review! Looks like the CUO would be an important addition. Many 350 riders in my area complain about flame outs/stalling and overheating so they add a fan and rekluse or switch back to the 300. With the CUO do you feel this 350 can match the 300 in slower tech trail? thank you!

[@mxengineer1]

For my skill and riding the KTM 350SXF/XCF cannot match a 300 2-stroke in slow technical trail riding. The KTM/Husky/Gas Gas 350's seem to work well for the top pro riders in Endurocross!

[@westmetal17]

When you first plug it in, does the unit detect where the stock map settings are? Or does it basically wipe the stock map and you have to set something up from scratch?

[@MXJEFF94]

It has everything at stock settings (3).

[@mxengineer1]

@@MXJEFF94 Yes everything starts at the mid point #3 on the slider scale (1 to 5). You then pick the track type (Sand/Gravel/Hardpack) and Dry or Wet and that sets a base power curve map. Then in the Advance settings you can change the Throttle Response, Engine Braking, Traction Control levels along with Shift Assist levels and Launch Control parameters. I like minimizing engine braking on all the maps I make - frees up the bike and suspension and makes it feel lighter in motion.

[@platin2148]

All of these settings are just offsets currently. So your setting is relative. I suspect that the parameters are changed via Stored file on the ECU as such if you reset they should change back to normal.

[@ktmracing3135]

@@MXJEFF94 Stupid question, If you make a map with medium/high traction control and upload it to the bike do you still need to press the button on the handlebar for traction control?

[@MXJEFF94]

@@ktmracing3135 yes. It just adjusts the amount of control you get.

[@williamcrotts7054]

Did you have to pay for the CU? Doesn't the SXF's come with it? I ride mine in the green map with traction control on because in the SW we have no traction unless it rains. BTW, it's the best motor out there IMO. That muff pipe combo seems pretty quiet. As you know stock is loud.

[@MXJEFF94]

You have to pay $250 for the unit. The CUO is free, but LIT pro (which is worth it) is $70 a year on the APP store. The 24.5 FE came with it, but not the standard SXF models

[@mxengineer1]

As MXJEFF94 noted the Connectivity Unit Offroad (CUO) came stock on the 24.5 Factory Edition models. The complete kit is $250 including the fender with the mount space for the GPS unit (if you want to use LITPRO). You can get just the CUO for $190 and that mounts on the fork leg. The KTM Connect app is free to download but a years subscription to LITPRO for the lap analysis capability is $70. I have not used the LITPRO capability yet but the CUO unit by itself if very helpful for engine character tuning. The Akrapovic full exhaust is lighter, quieter, has a spark arrester, and performs great. It is also expensive. The slip on Akrapovic is similar in performance and more reasonably priced. I really like the 24/25 350 engine!

[@pipefitterdirtbikerider3013]

I can’t tell the difference on the green map and the white map with full power turned on

[@mxengineer1]

@@pipefitterdirtbikerider3013 Are you running a CUO or just the stock ECU? Also what model are you talking about? Usually the peak power will be similar/same in White or Green maps but you may notice the throttle response low to mid might be a little sharper and the engine RPM build might be a little quicker in the Green map on most KTM models.

[@danieladams1973]

Can the GPS track mapping work on cross country racing? We run on 7-10 mile loops that are usually half wooded and my KTM dealer can't tell me if it will map out a track of that length. Thanks for the great videos

[@mxengineer1]

I have only used it at my buddies MX track and it did fine. Sorry I have no idea about a 7~10 mile loop - maybe you can contact LITPRO directly - they should know. It is a cool feature!

[@flotrac007]

Any chance you can elaborate on if this new CUO has any impact on flame outs? I have a ‘24 FX 350 and sometimes the smallest use of the rear brake can cause an easy flame out. I’m debating fly wheel weight or this new CUO. Thanks

[@mxengineer1]

Based on my CUO experience so far I don't think there is any change in flame out character using the CUO. I have not ridden difficult tight trails yet on my '25 350XCF. I will make a video comparing the "250F" map with the stock Green map on some tight trails and see if there is any difference in flame out.

[@platin2148]

@@mxengineer1 Well for full adjustments it definitely allows one to add more flame out, but there are ranges which aren't yet pssobile to set that make it run with less flame out. Just a map to change.

[@mxengineer1]

@@platin2148 Perhaps KTM will add more engine tuning options on future releases and updates to the CUO!😎

[@jdub264]

Would you recommend this for a 250 SXF (no woods, just track)?

[@mxengineer1]

I have tried the CUO on the 250SXF Factory Edition and reducing engine braking is an improvement. There is also a touch more throttle response depending on the map and setting in the CUO. Just get the CUO for $190 if you do not use LITPRO feature.

[@bradleymuha4861]

Ktm 300xc or ktm 350- woods riding what would you pick

[@bradykenney4976]

Racing and riding 350. Just trail riding 300.

[@mxengineer1]

I like them both! If it is tight and technical trails I go with a 300 2-stroke. If the trails are a little more flowing or open I like the 350 4-stroke. Here is a recent back to back 300 vs 350... kzbin.info/www/bejne/jmOtioaQituae9k

[@ktmracing3135]

Stupid question, If you make a map with medium/high traction control and upload it to the bike do you still need to press the button on the handlebar for traction control?

[@MXJEFF94]

Yes. It just adjusts the amount of traction control you get.

[@mxengineer1]

Yes - Traction Control has to be activated by pushing the TC button (and the TC light is on). The level of Traction Control is tunable in the app (#3 is stock level and you can go to #1 minimum up to #5 maximum. Set to #5 TC can slow the initial throttle response.

[@jasonkellerman7534]

Im not sure if you would know this, but if your ECU was already tuned aftermarket, would i lose the tune by using the CUO unit?

[@mxengineer1]

I am not sure. The CUO sends the revised map to the White map position on the map switch so perhaps only the White map would be changed by the CUO?

[@platin2148]

I didn't know such things exist? I thought these are either full mods or non. But guess now I know.

[@mxengineer1]

@@platin2148 There are some EFI tuners in the US that have "cracked" the ECU in the KTM models so they have the ability to revise the EFI map(s) in the stock ECU.

[@platin2148]

@@mxengineer1 Hmm i wonder if that changes the limits or if they still are within if not then that might trash your bike.

[@mxengineer1]

@@platin2148 Yes a valid concern as the OEM's will set EFI maps based on engine design considerations like strength and durability requirements.

[@davidgrunklee8407]

So which has the most powerful feel, green map or white with cuo maxed out?

[@mxengineer1]

That is a great question! I need to try that soon! I think Sand/Dry looks to be the most aggressive power curve option then turn throttle response up to #5 and go back and forth between the maps to see if one feels a little more aggressive. My guess is turning up the throttle response to #5 should give a little quick engine RPM build on the CUO map compared to the stock Green map.

[@coffmansdepth7927]

For some reason on my 2024 SX-F I get an error when I turn engine braking to 1 but anything above that I am good.

[@mxengineer1]

On my son's '23 450SXF we dial back the engine braking to #1 on any map he uses and it works fine. Check if there is an update to the KTM Connect software when you have your bike connected to your phone. When I installed the CUO on my new 25 KTM 350XCF it noted an update available from the current v2.5.03 to v2.5.14.

[@coffmansdepth7927]

@@mxengineer1KTM advised I get my firmware updated on my ECU. A little frustrating since I just got the bike and my dealer is an hour away.

[@mxengineer1]

@@coffmansdepth7927 Yes the bike ECU may need an update to work correctly with the CUO.

[@burstcasino]

Green or white map switch?

[@mxengineer1]

My understanding is sending a map from the CUO to the bike - the map goes into the white map switch location - so when the white light is on the CUO map is active

[@burstcasino]

@@mxengineer1 Ok Thanks. It would be nice if you could specify which map button to assign the modded map to. Ie "slow vet map" on white map and regular vet map on green map... Qr something like that...

[@mxengineer1]

@@burstcasino Yes being able to send different maps to the White or Green position on the map switch would be great - Yamaha does that but has no adjustment for engine braking. The CUO only sends to the white position and Green is always the Aggressive map.

[@RC.56]

Is this tune app avail for the 24?

[@mxengineer1]

Yes it works on 23/24/25 SXF/XCF 250/350/450 models (and equivalent Husky models). I installed a CUO onto my son's 23 450SXF though it did require the dealer to upload the latest 450SXF engine map using the XC2 tool.

[@benfiddy6721]

Can you remove the unit and the map stays on the ecu?

[@mxengineer1]

I am not sure on this latest CUO unit. It was that way on the '21 model year CUO.

[@platin2148]

Yes there was no clear say about this. But you can misuse it as tuning utility.

[@mxengineer1]

@@platin2148 Just to clarify: I install a map from the CUO into my 2025 KTM 350XCF. Then I removed (disconnect) the CUO from the bike - does the revised map sent to the bike still remain in the bike?

[@platin2148]

@@mxengineer1 No comment. I already said what one can do.