White or Orange 300 TPI strictly mx

28hall
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28hall
Edited Date/Time 8/28/2021 5:52pm
Has anyone set one up strictly for the track? I skimmed some older threads but didn’t find the answers I was after.
Admittedly I’m not a 2 stroke guy but after listening to the whiskey throttle show with Ryan Morais talking about the 300s they ran in straight rhythm it got me curious.
I like i can have the magic button and also the injection fixes the fact I know zero about jetting but how do they handle? Can you lug them or do you have to ride them aggressively? Are they a front or rear steering bike?
Let me know your thoughts and experience with these bikes

Edit I would be looking at an xc or tx for the project
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langhammx
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langhammx 8/27/2021 7:53pm
8/27/2021 7:53pm
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
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28hall
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28hall 8/27/2021 8:01pm
8/27/2021 8:01pm
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
What about the 300 don’t you like for the track? Weight? Power delivery?
I’m not able to test ride one so I want to get as much of an idea on the bike as I can.
I don’t want a carbureted bike and the 250s ive had previously didn’t really suit my riding.
BikePilot
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BikePilot 8/27/2021 8:02pm
8/27/2021 8:02pm
They lug just fine. Pretty neutral steering. An XC or TX will make a fine Mx bike with minimal work. The xcw and te would not be so hot due to the suspension (xcw especially). Add a 19” rear wheel and have the suspension sprung/valved for your use and you’ve got a Mx bike.

Plan on an aftermarket head for any Austrian 250/300 two stroke. The stockers are so bad it’s a crime against all thugs premix.

I’d also do a 300 kit on a 250 Mx bike, but I would not be after tpi or estart on a Mx bike.
langhammx
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langhammx 8/27/2021 8:04pm
8/27/2021 8:04pm
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
28hall wrote:
What about the 300 don’t you like for the track? Weight? Power delivery? I’m not able to test ride one so I want to get as...
What about the 300 don’t you like for the track? Weight? Power delivery?
I’m not able to test ride one so I want to get as much of an idea on the bike as I can.
I don’t want a carbureted bike and the 250s ive had previously didn’t really suit my riding.
Power delivery is the thing that wouldn’t work for me. But you’d need to have the soft suspension valved and sprung for MX. There’s a reason you don’t see any at the MX track, it’s a trail bike.
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28hall
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28hall 8/27/2021 8:08pm
8/27/2021 8:08pm
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
28hall wrote:
What about the 300 don’t you like for the track? Weight? Power delivery? I’m not able to test ride one so I want to get as...
What about the 300 don’t you like for the track? Weight? Power delivery?
I’m not able to test ride one so I want to get as much of an idea on the bike as I can.
I don’t want a carbureted bike and the 250s ive had previously didn’t really suit my riding.
langhammx wrote:
Power delivery is the thing that wouldn’t work for me. But you’d need to have the soft suspension valved and sprung for MX. There’s a reason...
Power delivery is the thing that wouldn’t work for me. But you’d need to have the soft suspension valved and sprung for MX. There’s a reason you don’t see any at the MX track, it’s a trail bike.
Yea ok I have seen the aftermarket injector/head kit. I should have said initially the suspension would be setup for MX but even after that do you think the bike is too soft for mx?
28hall
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28hall 8/27/2021 8:10pm
8/27/2021 8:10pm
BikePilot wrote:
They lug just fine. Pretty neutral steering. An XC or TX will make a fine Mx bike with minimal work. The xcw and te would not...
They lug just fine. Pretty neutral steering. An XC or TX will make a fine Mx bike with minimal work. The xcw and te would not be so hot due to the suspension (xcw especially). Add a 19” rear wheel and have the suspension sprung/valved for your use and you’ve got a Mx bike.

Plan on an aftermarket head for any Austrian 250/300 two stroke. The stockers are so bad it’s a crime against all thugs premix.

I’d also do a 300 kit on a 250 Mx bike, but I would not be after tpi or estart on a Mx bike.
Have you tried the aftermarket head and injector kit? There was one on the bazaar which also made me think you could make them more aggressive if needed
TeamGreen
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TeamGreen 8/27/2021 8:17pm
8/27/2021 8:17pm
I've ridden all the 300 Injected bikes: The TX300 has the power to do what you're talking about...if you really want Injection.

Good luck!
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Pirate421
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Pirate421 8/27/2021 8:52pm
8/27/2021 8:52pm
I ride my 250xc tpi moto all the time. I like to race gp and XC type races too but for training and practice it’s just about strictly mx tracks due to availability of riding spots, and I just like riding mx too. The XC works great for mx and I’m definitely not the slowest one out there. I have had yz250s and multiple 250sx and I really like the power delivery of the xc. Stock gearing works great too. Only thing I did was take the kickstand off.
soggy
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soggy 8/27/2021 8:56pm
8/27/2021 8:56pm
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
28hall wrote:
What about the 300 don’t you like for the track? Weight? Power delivery? I’m not able to test ride one so I want to get as...
What about the 300 don’t you like for the track? Weight? Power delivery?
I’m not able to test ride one so I want to get as much of an idea on the bike as I can.
I don’t want a carbureted bike and the 250s ive had previously didn’t really suit my riding.
langhammx wrote:
Power delivery is the thing that wouldn’t work for me. But you’d need to have the soft suspension valved and sprung for MX. There’s a reason...
Power delivery is the thing that wouldn’t work for me. But you’d need to have the soft suspension valved and sprung for MX. There’s a reason you don’t see any at the MX track, it’s a trail bike.
The xcw is far different then the xc
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yota
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yota 8/27/2021 9:23pm
8/27/2021 9:23pm
the XCW is a wide ratio gearbox isn't it?
RACERX69
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RACERX69 8/27/2021 9:25pm
8/27/2021 9:25pm Edited Date/Time 8/27/2021 9:31pm
soggy wrote:
The xcw is far different then the xc
Exactly! XC/TX’s are not trail bikes. They actually do quite well on an MX track.
The XCW/TE on the other hand are the trail bikes.

As an aside, those factory KTM 300’s Dungey, Morias and McElrath were running at RBSR were the meanest, nastiest sounding 2-strokes I’ve ever heard. And I’ve head lots of 2-strokes in my time.
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28hall
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28hall 8/27/2021 9:27pm
8/27/2021 9:27pm
soggy wrote:
The xcw is far different then the xc
RACERX69 wrote:
Exactly! XC/TX’s are not trail bikes. They actually do quite well on an MX track. The XCW/TE on the other hand are the trail bikes. As...
Exactly! XC/TX’s are not trail bikes. They actually do quite well on an MX track.
The XCW/TE on the other hand are the trail bikes.

As an aside, those factory KTM 300’s Dungey, Morias and McElrath were running at RBSR were the meanest, nastiest sounding 2-strokes I’ve ever heard. And I’ve head lots of 2-strokes in my time.
I edited my post i didn’t think to specify which one I would be looking at. Are the xc/tx still an 18 rear wheel? I hadn’t considered that either
chump6784
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chump6784 8/28/2021 5:09am
8/28/2021 5:09am
I believe MXA did what you're thinking about and they said it would be better to install the 300 kit on a 250sx/tc
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DGE.532
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DGE.532 8/28/2021 5:25am
8/28/2021 5:25am
Nothing wrong with an 18 on the rear unless you are Travis Pastrana level whoop skimmer.
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wydopen
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wydopen 8/28/2021 5:25am
8/28/2021 5:25am
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
What 300 kit did you have on your RM?
wydopen
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wydopen 8/28/2021 5:28am
8/28/2021 5:28am
If $ wasn’t a limiting factor I’d have a husky tc250 with a lectron carb, spring conversion and a 300kit. I have a lectron on my RM and the only thing I’ve touched is the idle.
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Dirtydeeds
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Dirtydeeds 8/28/2021 5:45am
8/28/2021 5:45am
I vote white. Mine works just fine on the track. Then again I’m just riding for fun. After being on 4t’s for the last 15+ years it took some getting used to but I get around just fine.
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RACERX69
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RACERX69 8/28/2021 5:53am
8/28/2021 5:53am
soggy wrote:
The xcw is far different then the xc
RACERX69 wrote:
Exactly! XC/TX’s are not trail bikes. They actually do quite well on an MX track. The XCW/TE on the other hand are the trail bikes. As...
Exactly! XC/TX’s are not trail bikes. They actually do quite well on an MX track.
The XCW/TE on the other hand are the trail bikes.

As an aside, those factory KTM 300’s Dungey, Morias and McElrath were running at RBSR were the meanest, nastiest sounding 2-strokes I’ve ever heard. And I’ve head lots of 2-strokes in my time.
28hall wrote:
I edited my post i didn’t think to specify which one I would be looking at. Are the xc/tx still an 18 rear wheel? I hadn’t...
I edited my post i didn’t think to specify which one I would be looking at. Are the xc/tx still an 18 rear wheel? I hadn’t considered that either
Yes, all XC/TX's have an 18in rear wheel.
Johnny Depp
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Johnny Depp 8/28/2021 5:58am
8/28/2021 5:58am
It would would be worth waiting for the '23's. TBI coming. TM makes a 300 track bike with FI. Beta makes one with a carb.
Motobeau179
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Motobeau179 8/28/2021 7:18am
8/28/2021 7:18am
I have a 22 300XC, 5 hours so far just track use. I put a pipe and did the kyb sss conversion. Great bike, previous bikes were 21 350 and 18 TC250. I just got the injector relocation kit, but have yet to install it (not sure if I will). Awesome bike!
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Nate_Z
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Nate_Z 8/28/2021 7:49am
8/28/2021 7:49am
I have a 21 300 XC TPI and a 21 KX450. I've done a bit of moto on the 300 TPI but generally prefer the KX on the track and keep the 300 for singletrack stuff. That being said, the 300 does pretty well on the track. Suspension is soft, you can make it okay with clickers but if you're full time moto, I would recommend a revalve. Many folks are quick to run a different head, ECU or do an injector relocation kit, but I've found the power to be just fine. If I did more moto on the 300, I would look for more top end, but certainly not a limitation. Good luck!
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OnTheCrossbar 8/28/2021 8:09am
8/28/2021 8:09am
I was in need of e-start due to a trashed knee, after 4 250sx models I picked up a 2020 250xc. Great for trail riding, but I hated it on the track or even gravel road ripping here on the coast. I installed an RK head, flashed the ECU and adjusted the PV, still sucked. I found you had to shift it like a 125 to make it work for moto, there is a big dead spot in the mid, if you don't shift the power doesn't come on fast enough. Sold it after 40hrs and hoping against hope for an e-start 250sx. Absolutely don't buy one for moto imo.
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BikePilot
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BikePilot 8/28/2021 8:34am
8/28/2021 8:34am
BikePilot wrote:
They lug just fine. Pretty neutral steering. An XC or TX will make a fine Mx bike with minimal work. The xcw and te would not...
They lug just fine. Pretty neutral steering. An XC or TX will make a fine Mx bike with minimal work. The xcw and te would not be so hot due to the suspension (xcw especially). Add a 19” rear wheel and have the suspension sprung/valved for your use and you’ve got a Mx bike.

Plan on an aftermarket head for any Austrian 250/300 two stroke. The stockers are so bad it’s a crime against all thugs premix.

I’d also do a 300 kit on a 250 Mx bike, but I would not be after tpi or estart on a Mx bike.
28hall wrote:
Have you tried the aftermarket head and injector kit? There was one on the bazaar which also made me think you could make them more aggressive...
Have you tried the aftermarket head and injector kit? There was one on the bazaar which also made me think you could make them more aggressive if needed
I’m sticking with carb bikes at present, but aftermarket head yes. I run and rk and spaced my cylinder up 1mm. Runs amazingly well. Still very controllable, but revs out higher and pulls harder now. The tpi bikes have the same basic head design/flaws. Night and day difference between a stock head and a good aftermarket head.
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langhammx
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langhammx 8/28/2021 8:47am
8/28/2021 8:47am Edited Date/Time 8/28/2021 8:49am
langhammx wrote:
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx...
You’re going to want an SX250 with a 300 kit for the track. The OffRoad xcw 300 is not going to be a very good mx bike, IMO.

I own one and I’d rather ride my EXC500 dual sport at the track, than I would my 300.
I ride an sxf350 at the track, but have owned/ ridden a 150 and several 250 2-strokes.
I had a 300 kit on my ‘07 RM250 and it was a great bike. But it was carbureted and kick start.
The 2023 SX250 is suppose to be TBI and is also electric start. Buy the 300 kit and you’ll have a good bike.
wydopen wrote:
What 300 kit did you have on your RM?
Eric Gorr
28hall
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28hall 8/28/2021 3:28pm
8/28/2021 3:28pm
wydopen wrote:
If $ wasn’t a limiting factor I’d have a husky tc250 with a lectron carb, spring conversion and a 300kit. I have a lectron on my...
If $ wasn’t a limiting factor I’d have a husky tc250 with a lectron carb, spring conversion and a 300kit. I have a lectron on my RM and the only thing I’ve touched is the idle.
So you think a lectron would be similar to fi? Like I said I know nothing about jetting and the 2 250 2ts I’ve had previously I hated they didn’t run exactly the same at every track or conditions
Pirate421
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Pirate421 8/28/2021 5:19pm
8/28/2021 5:19pm
I had a lectron on my 250sx at one point and ended up taking it off. The adjustment is pretty easy but there are multiple metering rods that can work and the power was just not there with the one I had. I went back to a keihin carb with a jd kit and it was much stronger and more fun to ride than with the lectron.
bh
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bh 8/28/2021 5:23pm
8/28/2021 5:23pm
If I remember right there was a racer x or a vital build on a husky tpi bike that was set up for moto. I could be wrong though.
Broseph
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Broseph 8/28/2021 5:27pm
8/28/2021 5:27pm
bh wrote:
If I remember right there was a racer x or a vital build on a husky tpi bike that was set up for moto. I could...
If I remember right there was a racer x or a vital build on a husky tpi bike that was set up for moto. I could be wrong though.
https://m.youtube.com/watch?v=ZAjgQBTR7cg
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