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Only $10 for all 2026 SX, MX, and SMX series.
I've ridden XC 300s on the track and they work okay, but not like an SX.
BTW, I just built a 314cc stroker kit (a KTM 300 is actually only 293cc) out of my 250SX. The sucker runs good!
"Perhaps some of the confusion comes from countershaft sprockets. Some of the 300XCs come with a 13 (like the motocross bikes) and some come with 14 (as the specs call for). Willy Musgrave has taken over the testing on our bike and he is running 13/50, but thinks that he should run 13/49. If Hoss has the 14, then we needs to go to the 52. If he has a 13, then he needs to try to make second into first and third into second.
KTM has no explanation of why the bikes are different. They told us that it had a 14, but when we started messing with the gearing, it had a 13. No matter what, first gear is not usable on a motocross track and neither is sixth. Hope this helps, Jody"
That said mine does have the 13 counter sprocket while the manual and others I've read have the 14 . I'll be getting the 49
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i went the other route making my 300sx and started with a 250sx and installing the factory 300sx kit. as for the engine i have a fmf factory pipe w/ shorty and a dicks modified carb and head (got to run her on 50/50 w/ 800). the suspension has been revalved on both ends and i shortened the pds shock and slid the forks tubes to balance the ride giving it a slightly lower ground clearance but it corners on rails. the whole package rips and best of all is a blast to ride. you ride the same tracks i do so come on by and give her a go.
Thanks!
Nice work bud!!
Here is what is going to happen w/ your new gearing choice:
1st gear is only good for 2mph or less.
2nd gear will be equivalent to an SX 2nd gear but pull just a hair longer.
The jump to 3rd will be long from 2nd. 3rd gear will be really, really long. This might be useful if not entirely strong.
The gap to 4th, for an MX application will be excessive. In fact this 4th gear will be like being in 5th on an SX. But since 3rd pulled halfway into an SX 4th gear, the gap is not so huge.
5th will be be faster than any SX goes. All but useless on an MX track unless you hit the whoops at 70mph.
6th will be cool if you decide to ride your bike home down the 101 Freeway. Otherwise, completely useless.
Ive actually changed the counter sprocket to a 14 and the rear to a 52 which seems about right for me. 13/49 would have been ok for the tracks I ride but 14/52 will let it pull a bit longer. Im sure ill go through more chain guides with this gearing but 14/52 seems the way to go. Im riding Hangtown today (hopefully) with this gearing change so ill know for sure.
Oh, wait a second..... I'm from Orangevale
Not to be an a$$ but what does it matter what i bought? I got an XC for a lot of different reasons and this is what I wanted to do. I could have got a 250 sx but I didnt want one I wanted the XC. Two big reasons
One is resale, I can sell this bike much easier than a 250 sx with a big bore, I know this because I know people with sx's and some have sat on them for months, 300 has a broader range of riders from motox to offroad its a great bike for anything.. The other reason is I dont trail ride but I really want to start doing it so this would be the perfect bike. If I get another thumper id like to keep this throw the big tank on it and im set.
Pit Row
Where did you get the Red Bull graphics?
Ktm300sx
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