Beta RX350 2 Stroke!

Edited Date/Time 6/10/2025 5:53am

How 'bout this baby!!!  350 Smoker, with CARB!   Released today.   Time for Kawasaki to step up to the plate.  Money is burning a hole in my pocket... Might have to go Italian. 

RX-250-2T-My-2026-3.jpg?VersionId=fvpXBD6nVTUpr6WpPJbBlcR
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ktmracer726
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Gagetown, MI US
6/10/2025 5:53am Edited Date/Time 6/10/2025 5:53am

Kind of surprised they didn't dump the RX 300. Now they have a 250, 300 and 350 RX. 

1
6/10/2025 5:54am

Kind of surprised they didn't dump the RX 300. Now they have a 250, 300 and 350 RX. 

They have a 250rx? Been waiting for them to release one

ktmracer726
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6/10/2025 5:56am Edited Date/Time 6/10/2025 5:57am

Kind of surprised they didn't dump the RX 300. Now they have a 250, 300 and 350 RX. 

They have a 250rx? Been waiting for them to release one

Yes, it was released today along with the 350 RX. 

 

https://www.betamotor.com/mx/

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6/10/2025 6:02am

Kind of surprised they didn't dump the RX 300. Now they have a 250, 300 and 350 RX. 

They have a 250rx? Been waiting for them to release one

Looks like the 250 & 350 are new releases, the 300 is dumped.  (in the 2 stroke lineup).

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The Shop

ktmracer726
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6/10/2025 6:03am

The 2T range sees the entry of the new 350cc engine, together with the smaller and more racing 250cc, while the RX 300 leaves the scene. 

 

Sounds like the RX 300 is done. 

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AMetts
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6/10/2025 6:06am

I like Beta but man their really is no rhyme or reason to their release times or lines. 

Can we get a some streamlining to the lineups as well so people know what is what. They have RR, RR Race, RR X-Pro, RC, RX. 

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6/10/2025 6:07am Edited Date/Time 6/10/2025 6:07am

Ahh ok that makes sense. Hopefully the 250 is quite a bit less lethargic 

mxrose3
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Delmar, DE US
6/10/2025 6:08am

Pretty cool.   Do these have a counter-balancer, or no?

1
6/10/2025 6:16am
AMetts wrote:
I like Beta but man their really is no rhyme or reason to their release times or lines. Can we get a some streamlining to the lineups...

I like Beta but man their really is no rhyme or reason to their release times or lines. 

Can we get a some streamlining to the lineups as well so people know what is what. They have RR, RR Race, RR X-Pro, RC, RX. 

RR is now gone, that has turned into the X-Pro so they have the below:

X-Pro: Single track and avg trail rider

RR Race: x-pro with KYB suspension, premix only on 2t models and a few other bells and whistles for off road racing

RC: Cross country bike, think RR Race and RX had a baby

RX: Motocross bike

Also throw in the Xtrainer which is an amazing bike but totally different market than the above.

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AMetts
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6/10/2025 6:24am
AMetts wrote:
I like Beta but man their really is no rhyme or reason to their release times or lines. Can we get a some streamlining to the lineups...

I like Beta but man their really is no rhyme or reason to their release times or lines. 

Can we get a some streamlining to the lineups as well so people know what is what. They have RR, RR Race, RR X-Pro, RC, RX. 

RR is now gone, that has turned into the X-Pro so they have the below:X-Pro: Single track and avg trail riderRR Race: x-pro with KYB suspension...

RR is now gone, that has turned into the X-Pro so they have the below:

X-Pro: Single track and avg trail rider

RR Race: x-pro with KYB suspension, premix only on 2t models and a few other bells and whistles for off road racing

RC: Cross country bike, think RR Race and RX had a baby

RX: Motocross bike

Also throw in the Xtrainer which is an amazing bike but totally different market than the above.

Okay that makes a bit more sense, still think the "Race" at the end of RR makes it still confusing if there is no non race RR but much better. 

Hopefully with this new model lineup they expand on the RC line they need a 250,300, 250 four stroke, 350 four stroke and 450 to make that a bike that GNCC and similar riders look at a little harder. 

Jhak Walker has been killing it this year but he's been on a 250 2T and while he is riding it great if he wanted to be on a four stroke they don't have a 250 four stroke to put him on but the 2t seems to be working well he just won the National Enduro last weekend. 

1
6/10/2025 7:24am
AMetts wrote:
I like Beta but man their really is no rhyme or reason to their release times or lines. Can we get a some streamlining to the lineups...

I like Beta but man their really is no rhyme or reason to their release times or lines. 

Can we get a some streamlining to the lineups as well so people know what is what. They have RR, RR Race, RR X-Pro, RC, RX. 

RR is now gone, that has turned into the X-Pro so they have the below:X-Pro: Single track and avg trail riderRR Race: x-pro with KYB suspension...

RR is now gone, that has turned into the X-Pro so they have the below:

X-Pro: Single track and avg trail rider

RR Race: x-pro with KYB suspension, premix only on 2t models and a few other bells and whistles for off road racing

RC: Cross country bike, think RR Race and RX had a baby

RX: Motocross bike

Also throw in the Xtrainer which is an amazing bike but totally different market than the above.

AMetts wrote:
Okay that makes a bit more sense, still think the "Race" at the end of RR makes it still confusing if there is no non race...

Okay that makes a bit more sense, still think the "Race" at the end of RR makes it still confusing if there is no non race RR but much better. 

Hopefully with this new model lineup they expand on the RC line they need a 250,300, 250 four stroke, 350 four stroke and 450 to make that a bike that GNCC and similar riders look at a little harder. 

Jhak Walker has been killing it this year but he's been on a 250 2T and while he is riding it great if he wanted to be on a four stroke they don't have a 250 four stroke to put him on but the 2t seems to be working well he just won the National Enduro last weekend. 

The RC was just introduced So I'm sure that line will expand a little each year. My guess is as soon as the 250 4t RX comes out they will then work on adding that to the RC line. Id expect a 350 before that if they are going to do one at all but if they might also stick to the ccs of specific classes and only do a 250/450 option, but i am totally guessing. I agree 100% its the line that GNCC folks need!

I also agree on the RR Race but also the X-Pro is technically the RR X-Pro so i don't see that name changing. Personally i think it should just be X-Pro and RE for Race Edition or something like that to make it simpler.

Justthefacts
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Bettendorf, IA US
6/10/2025 7:46am

I've said for years.  This size 2 stroke will rule. 300 was on the edge of a 450.  This 350 will be better everywhere. Weight, handling, power lower and upper.  Awesome!

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vdrsnk04
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IL US
6/10/2025 8:17am

Meh, they already had a 300RX 2T that rips. Should have done a 350RX 4T. 

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Coach529
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Coeur d'Alene, ID US
6/10/2025 8:18am

Interesting. The 300 was 66.4mm bore, 72mm stroke.  350 is 78mm x 73.6mm.

 

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BobPA
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6/10/2025 9:21am
Coach529 wrote:

Interesting. The 300 was 66.4mm bore, 72mm stroke.  350 is 78mm x 73.6mm.

 

66.4mm bore with a 72mm stroke is 249.32cc

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GrapeApe
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Mc Kinney, TX US
6/10/2025 9:55am
Coach529 wrote:

Interesting. The 300 was 66.4mm bore, 72mm stroke.  350 is 78mm x 73.6mm.

 

BobPA wrote:

66.4mm bore with a 72mm stroke is 249.32cc

Well that would explain the dyno numbers lol

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6/10/2025 10:07am
vdrsnk04 wrote:

Meh, they already had a 300RX 2T that rips. Should have done a 350RX 4T. 

Isn't the 300RX something like 10hp short of a 300sx?

Lennon
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6/10/2025 10:43am
Awesome, but twin plug head is strange.
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Coach529
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6/10/2025 11:37am

Typo.....

 

Bore: 73.0 mm

Stroke: 69.9 mm

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Ramrod
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6/10/2025 11:48am

350 two stroke sounds really good, very interested.

 

Sexy bike man!

erik_94COBRA
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Houston-ish, TX US
6/10/2025 12:10pm

A 350 cc 2-stroke tuned for linear power, with carburetor, counter balancer, electric start, and KYB suspension?  

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user760a
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Shelby, NC US
6/10/2025 12:59pm

Kind of surprised they didn't dump the RX 300. Now they have a 250, 300 and 350 RX. 

This is the same company that has a 350, 390, 430, 450 and 500 four strokes, so...

2
freeh
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West Jordan, UT US
6/10/2025 1:01pm
Joshracing wrote:
How 'bout this baby!!!  350 Smoker, with CARB!   Released today.   Time for Kawasaki to step up to the plate.  Money is burning a hole...

How 'bout this baby!!!  350 Smoker, with CARB!   Released today.   Time for Kawasaki to step up to the plate.  Money is burning a hole in my pocket... Might have to go Italian. 

RX-250-2T-My-2026-3.jpg?VersionId=fvpXBD6nVTUpr6WpPJbBlcR

Downvotkng this is the most offensive thing I've ever seen on Vital,  including the non-moto section!  

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bodycast
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6/10/2025 1:37pm

Cant wait for some reviews!  

Andy7
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Fantasy
6/10/2025 2:09pm

The 350 has the same gearbox as the 250 (13-50) with 13-47 gearing. Thing will be really fast, ultimate desert weapon. As long as it has some decent top end, but that can be tuned with a good head cut and some porting anyways. God, is good to be alive!

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6ully
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Los Angeles, CA US
6/10/2025 2:53pm
Andy7 wrote:
The 350 has the same gearbox as the 250 (13-50) with 13-47 gearing. Thing will be really fast, ultimate desert weapon. As long as it has...

The 350 has the same gearbox as the 250 (13-50) with 13-47 gearing. Thing will be really fast, ultimate desert weapon. As long as it has some decent top end, but that can be tuned with a good head cut and some porting anyways. God, is good to be alive!

Yeah I was just thinking this too. Great for desert and track! Hyped for this

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jeffro503
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St Helens, OR US
6/10/2025 3:05pm

Dang! That's a pretty sexy looking bike right there. 

2
6/10/2025 6:40pm

Any guesses on power delivery for the 350? Flat on top, fall on its face? Or smooth spread more like a yz250? 

1
StillSmokin
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Edmond, OK US
6/10/2025 8:13pm

Need dyno curves stat. 

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