Thread: KTM TPI Dirt Bikes

Any dirt riders on here running or used KTMs recent TPI bikes in the XC or EXC models? How did they go and how were they for reliability/issues etc over an older carb model? Power delivery differences?

Yeah mate used them a lot, no reliability issues I've heard of.
There a great bit of kit and you wouldn't regret it.
The power delivery is a hard one to answer, the late model carbs on the eruo bikes were so good anyway.
But yes definitely smoother power, way ahead on cold starts, laying it down etc


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I've got a xc-f 350 not a TPI but my 2c worth great machines the KTM's this is my 3rd one go to a Berm Buster the orange bikes will be there in abundance though their asking price for a new one is getting steep

Cheers guys, on my third YZ250 atm setup for the riding I do - cross country/enduro stuff. Love it but i’m thinking it’s time to get on something a bit more modern with a good e-start for those technical places and all the other better gear coming on KTMs these days. Used to have a 300 exc and it was a beast of a bike but just found it a bit soft for playing on tracks and fast stuff so thinking the XC would be a good compromise. 250 XC probably 2017+ is what i’m watching out for I think.

These days any of the Euro 2 stroke enduro bikes are weapons. Yes Yamaha have the advantage of KYB suspension, but the rest of the bike is stuck in the last decade. The Japs appear to have no interest in maintaining any edge in this area of the sport.

The TPI's do give you insane mileage for a two stroke, but as already said, the last of the carbs were pretty much faultless anyway, and can have less electronic gremlins visit you.

KTM is such a big company now, that customer service is a shadow of its former self from the 90's. Just look at their ridiculous reluctance to update their electric leg. massive issues for an entire decade, until the Euro opposition came along and developed ultra reliable elecy starts that they had to do something. Was a pretty poor show for the supposed 'leader' of the pack.

Originally Posted by stagstalker

Cheers guys, on my third YZ250 atm setup for the riding I do - cross country/enduro stuff. Love it but i’m thinking it’s time to get on something a bit more modern with a good e-start for those technical places and all the other better gear coming on KTMs these days. Used to have a 300 exc and it was a beast of a bike but just found it a bit soft for playing on tracks and fast stuff so thinking the XC would be a good compromise. 250 XC probably 2017+ is what i’m watching out for I think.

On the older KTMs used to come with different power valve springs that you could use to smoothen or sharpen up power delivery.
The TPI bikes appear to be easily adjustable, such that you could tune it for smoother power on for enduro type riding or shaper hitting power for MX.

Thought I would do a quick follow up on this. I was all set to get a nice secondhand KTM when a friend brought to my attention that GasGas is now basically just a red KTM and they had their 2022 bikes going at stupid good price (the 2023 bikes are exactly the same, no updates other then graphics). Basically I could get a brand new bike for the price of a second hand KTM, no brainer! So here we are with my new GasGas EX250. Rode it for the first time today and wow! I’ve loved my YZ250 but this thing is just so much smoother. Looking forward to the next XC race!

Nice!

That's about 2 decades worth of 2 stroke development ahead of the stuck in the muds Jappers. You won't know yourself

Just read up the specs for this particular bike. They come standard with a lithium ion starter battery, how goods that! My LiIon battery in my 300 is now 5 years old. Don't get that out of a standard battery, and it can sit for six months and burst into life like you ran it yesterday.

I have a mate with a KTM 300 tpi, and he raves about the fuel consumption. He gets about twice the miles I get out of my geared down carbed 300, when he rides it on the road (yes, he rode it from Te Awamutu to ride the Dusty Butt). Best he got was 22km/L

My only concern would be it meters oil at an average of 80:1 They don't appear to mind that, but they haven't been running them like that for a decade, like I have with my 300: 540 hours on only one piston change @40:1

The only other concern I have is they have used the typical KTM low hanging expansion chamber setup. Depends on your riding terrain, but I jump a lot of rubbish and logs and the Beta tucks the expansion chamber up about 100mm higher than the KTM stable seem to do.

All in all a lovely bike. The design and build quality of these generation of bikes means that your riding to maintenance ratio will be maximised

Yup I ran a P3 carbon pipe guard on my YZ250 so i’m trying to source a new one for this bike. Will be getting a skid plate too as I do a bit of enduro stuff.

Originally Posted by XR500

The only other concern I have is they have used the typical KTM low hanging expansion chamber setup. Depends on your riding terrain, but I jump a lot of rubbish and logs and the Beta tucks the expansion chamber up about 100mm higher than the KTM stable seem to do.

Well you must be a big guy over 180cm and weight up to 180 lbs. I think the expansions are adjustable to varied riders. I am not big guy, only 175cm tall, sitting on a WR 450, I only can touch ground with toes only, with boots on. Maybe I was doing not very correct, but I like to set my sag little faster.

Originally Posted by Black Rabbit

Well you must be a big guy over 180cm and weight up to 180 lbs. I think the expansions are adjustable to varied riders. I am not big guy, only 175cm tall, sitting on a WR 450, I only can touch ground with toes only, with boots on. Maybe I was doing not very correct, but I like to set my sag little faster.

Exhaust expansion chamber, big shiney thing curled round the motor.


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Both are correct But I was primarily referring to the clearance under the bike for obstacle hopping.

But yes, 187cm and 105kg rider here

Perfect choice of bike number.

Originally Posted by XR500

Both are correct But I was primarily referring to the clearance under the bike for obstacle hopping.

But yes, 187cm and 105kg rider here

I am still afraid of doing pivot turn on regular dirt bike with seat `s high of 950mm, tried several times but can `t do it right completely. My Bio father is or was 185cm, if I have 178cm, I think I can handle it very but as said only 175cm, weight now is about 72kg, lost lot of muscle in these 3 years. KTM, I think the one suit me is freeride 350cc.