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I currently have a 2017 kx250f and I love the bike but I'm not into racing as much as I used to be after multiple injuries. I really love 125s and how fun they are to ride, yet I still want to be competitive with buddies at the track or the few times I do race. I really want to get opinions on the 125 versus 150 and husky versus KTM.
2017 = WP AER
Get a 17 or newer.
125 vs 150 = Idk if this is just me but the 150 feels like it has a narrower powerband. It could be that it produces a few more ponies at X RPM compared to the 125 that makes different. Both bikes are quick, the stock 125 16- is faster than any late japanese 125 with a pipe, reeds and top mod.
The good part is that the new gen 125/150 has swappable cylinders so if you wanna try out the 144cc kit all you have to do is order a 150 cylinder for your 125.
But yes, it's a completly different animal compared to your 250F
Besides from that, KTM and Husky are pretty much the same, pick the best one on CL.
The Shop
That being said, I have no experience with these new KTM's.
I'm 38 and ride vet A...I'm 210lbs with gear on. I bought a '17 150sx and 250sx. I love both bikes. The 125 sx feels faster than the 150sx, but in deep sand tracks I don't have to work as hard to keep the 150 on the pipe, and my lap times are usually 1-2 seconds a lap faster, and depending on the track, I am very close to lap times of the 250sx. Fun factor on the 150sx way higher. For me I only needed to add a stiffer spring and more air to the forks and the bikes were perfect for me.
I'm 155-160lbs and really enjoy the 2016 125sx. I upgraded the suspension. If you plan on keeping the stock forks get the 17 or 18 with the AER48s
Now as far as your statement about the Modded bikes not being as fast is not true. We had a fully blown national level EBR KTM 125 and it was fast but keep in mind the KTM's off the floor are pushed closer to the max motor wise. You can squeeze another 6 or 7hp out of the YZ. We decided to sell the KTM and buy a new YZ. I sent it Terry Varner and it's making 39.5hp on the Dyno. Once you mod both bikes the end result is about the same but the KTM is broader where the YZ does require more shifting but revs faster.
As far as the KTM 125 compared to the 150 the 150 is faster on top end but harder to ride. Most people would be faster on the 125. If you are play riding it will not matter but if you are racing against 250fs you will be working harder.
Good Luck!
I'm 50 y/0 slow vet C, 210 lb w/o gear on a 17 HVA 250TC
I don't race anymore, just MX practice wonder..
The TC is great but that thing is wearing me out fast
Smoothed out the beast with jetting/PV setting and pipe but it still hits pretty hard
I've been thinking of going down in cc but not sure if it still would pull me . I'm in Central FL, sandy tracks
I saw you have a 250SX so what's your take on 250 vs 125/150 as far as "ease of riding"
I know it's not apples to apples (sorry oranges to oranges!) comparison but with fun/practice only in mind, would you say that the 250 is still more forgiving due to the extra torque?
I haven't been on a small bore for many years but last I recall it was a lot of work to keep the engine sweet spot,
Pit Row
It sounds like you are moving away from racing exclusively. This is where the 150 shines.
I randomly bought a 250SX a while back, and honestly, when I go riding, no matter if MX or off-road...im never sure which one I'm taking until it's time to load up. I can assure you, if I had a 125, I would leave it at home anytime I was going off-road or play riding.
That said folks who ride/race MX exclusively tend to prefer the 125 due to its longer over-rev pull and don't mind losing the increased low-mid torque the 150 offers.
Post a reply to: Tc/sx 125 vs. 150. (2016-current)