2025 Ktm 300sx

I just got a brand new 25 Ktm 300sx.  I’m through the roof excited.

 

really want to buy a bills pipe and silencer for it, wondering if those parts are the same since it doesn’t look like changes were made to the engine.  Anyone have any idea what parts will and won’t fit?

 

thanks! 

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sandman768
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6/19/2024 6:17pm

Hell ya! Give us a ride report when you can! 

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TDC
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HTown, TX, USA
6/21/2024 5:00pm

Pumped for ya! Make sure that pipe helps above the midrange. I have a PC Works pipe and WMR re-flash. Does Bill's help the mid to top?

Rumors in Austria of a future 360 model!!

3
ktm-don
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Ann Arbor, MI, USA
6/22/2024 6:58am

I'm considering the 2025 model, I'll be interested in any comments.

MX558
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6/30/2024 2:57am

I'm finally getting to ride a buddy's  300sx today . Haven't ridden in 2 months so should be interesting 

The Shop

6/30/2024 8:04am

Ride reports ASAP!!

Ob917
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6/30/2024 5:44pm Edited Date/Time 6/30/2024 5:45pm

You probably figured out by now that the 23-24 pipe fits. 

13
JWACK
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7/1/2024 1:20pm
Ob917 wrote:
You probably figured out by now that the 23-24 pipe fits. 

You probably figured out by now that the 23-24 pipe fits. 

Nice! I’m really enjoying these new 2strokes.  The chassis works very well on them.  

Give us the scoop on your Enzo conversion setup!
Im thinking about going this route on my 24.   I haven’t been too pleased with my last few sets of cone valves compared to my showa or kyb stuff.    

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Ob917
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7/2/2024 9:54pm Edited Date/Time 7/2/2024 9:56pm

Killing me I haven’t even ridden it yet! Been to busy with stupid Mtb stuff! 
I hope I like them more than my last set of CVs, those were so good. Im especially interested in how the shock is going to work with the KYB piston snd valving conversion. Plus the Kashima body. 

2
7/3/2024 9:42am
Ob917 wrote:
Killing me I haven’t even ridden it yet! Been to busy with stupid Mtb stuff!  I hope I like them more than my last set of...

Killing me I haven’t even ridden it yet! Been to busy with stupid Mtb stuff! 
I hope I like them more than my last set of CVs, those were so good. Im especially interested in how the shock is going to work with the KYB piston snd valving conversion. Plus the Kashima body. 

What did the Enzo stuff cost?

Ob917
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7/3/2024 1:55pm Edited Date/Time 7/3/2024 2:14pm
Ob917 wrote:
Killing me I haven’t even ridden it yet! Been to busy with stupid Mtb stuff!  I hope I like them more than my last set of...

Killing me I haven’t even ridden it yet! Been to busy with stupid Mtb stuff! 
I hope I like them more than my last set of CVs, those were so good. Im especially interested in how the shock is going to work with the KYB piston snd valving conversion. Plus the Kashima body. 

What did the Enzo stuff cost?

It was expensive, the forks mainly lol

1
boolzi
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Tollesboro, KY, USA
7/6/2024 5:11am

I’m in on this. Do ride track?

saskmx
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CA
8/10/2024 11:20am

Interested to hear thoughts on it. Just started riding last year at 27yo, just a weekend warrior and probably never going to race. Thought I would stick to 2 strokes to save money but got to try a 2019 yz450 and really enjoyed it. Hoping this might be a good middle ground

TDC
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8/11/2024 9:55pm
saskmx wrote:
Interested to hear thoughts on it. Just started riding last year at 27yo, just a weekend warrior and probably never going to race. Thought I would...

Interested to hear thoughts on it. Just started riding last year at 27yo, just a weekend warrior and probably never going to race. Thought I would stick to 2 strokes to save money but got to try a 2019 yz450 and really enjoyed it. Hoping this might be a good middle ground

I found I don't get forearm soreness, the power delivery is as easy to ride as a 4t, but it has the nimble feels. Being a noob, I'd say you have less risk of the power putting you in the hospital. You have more input to rip, so it's less likely to surprise you...IMHO. 

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sandman768
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8/6/2025 7:42am

We never got a ride report from OP….did the crank explode😂I just bought a 25 leftover for 8300.00 OtD….love these 300”s…. 150hrs on my 23, time to off it….

sandman768
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8/12/2025 1:27pm
IMG 7565
1
sandman768
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Saratoga Springs, NY, USA
8/12/2025 5:52pm

Just noticed the 25 comes with a 47 rear sprocket….my 23 came with a 49 and I went to a 50 to use 3rd almost everywhere…countershaft sorocket has stayed the same at 14…strange, no other changes internally that i know of….bike is geared for bonnelville salt flats😂

1
wrc777
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Fantasy
8/12/2025 6:03pm
sandman768 wrote:
Just noticed the 25 comes with a 47 rear sprocket….my 23 came with a 49 and I went to a 50 to use 3rd almost everywhere…countershaft...

Just noticed the 25 comes with a 47 rear sprocket….my 23 came with a 49 and I went to a 50 to use 3rd almost everywhere…countershaft sorocket has stayed the same at 14…strange, no other changes internally that i know of….bike is geared for bonnelville salt flats😂

It probably makes 2nd a lot more useful. 

sandman768
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8/13/2025 4:01am
wrc777 wrote:

It probably makes 2nd a lot more useful. 

Im thinking they had a stock pile of 47 rears😂 a 450 can barely pull a 47 rear…I always try to gear my bikes for 3rd gear being the most usable…I”ll be going to a 50 like on my 23…I replace the stock chain & sprockets before I even ride them anyway….my old “for sale” bikes always get the stock stuff….

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