KTM 125 SX reviews

This bike is insane. I had a Honda 250F and it was good but it lacked power. I don't like to do extreme mods to the engine and all that stuff. All I do is the suspension, but this 250F is insanely fast stock. All I did to it was fit the FMF factory 4.1 silencer and the FMF mega bomb header pipe. I also changed the rear sprocket from a 48t to a 49t because lugging my fat butt around was a little difficult for the bike. But when I put the 49 on, it changed that and I was racing my friend around the track who is a Lorrettas 4 placer. The bike needs the suspension done no matter what weight you are or height. But other than that, no complaints just praises. I love the bike and I recommend it to anyone looking for a new bike. Show less

I've owned the KTMM for a few months now and it's by far the best bike I've ever had!! I used two have a YZF 426 and this bike makes it look like a moped :) Any one know what performance parts I can put on it?? Let me know, thanx.... Show less

This bike is pretty amazing. I'm faster on it than my 06 yz450. It's light, powerful, and handles like a dream. If you're even on the fence about this bike, go buy it!! I race at the local track one weekend, then the next I'm in Moab on technical single track riding. Bike does it all! Love it. Show less

I rode my KTM for the first time on the track and I have never ridden a bike that hooked up so well and had such steady power in a 2 stroke. Show less

I just got my 2004 KTM 125sx for my 14th birthday off craigslist. I ride in mostly trails and woods and surprisingly the two stoke works, for me, beter that a 4 stroke. All of my friends have 125's either Hondas, Yamahas, or Suzukis but my bike smoked them. This bike is definitely faster that the Japanese manufacturers bikes and comes stock with a lot of nice extras. I would stongly recommend this bike even for a trail rider because it simply is fun and that's what riding is to me. Show less

Very reliable bike, needed suspension work to match my weight and riding style but the bike is all and more than what I could ask for. Show less

I have had this bike for 3 weeks now and I am amazed. This bike is crazy fast and has a scary powerband. Equipped with all the ktm goodies like vforce 3 reeds, renthal bars, perelli wheels, twin air filters and more. This bike is amazing and I recommend this bike to everyone. Show less

This bike has great power and very tunable. Stock springs too soft for my weight. Light and flickable. I feel very cramped in attack position. Problems with spark plugs fouling. Even with jetting to altitude and temp for my area. Love the look. Great breaks and clutch feel. Show less

This bike is so awesome. I've seen nothing but good stuff about it and here is another good review! It's fast, has good suspension, I LOVE the hydraulic clutch and it's the perfect size for thoes awkward times between 80's and big bikes. KTM is the only company that seems to put any effort into their smaller bikes. You can see the quality in it. If you compare any part of this bike to another one in its class, it's clear how much more thought was put into the 105sx...and it looks super hot too! Show less

The whip is sick out of the box, no mods are needed. The only thing I added to mine was a fmf factory 4.1 silencer with a mega bomb header. I can't ride all stock. I bleed orange now. Get one. Show less