would a 125 2 stroke be good for trail riding

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#1
i am wondering if a kx cr rm yz ktm all 125cc 2 stroke would be good for trail riding i am 5'7" i would like too get a bike but dont no if it will be good on the trails i ride at towercity pa and theres about 88% rocks
 
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#2
With some mods it could be a good trail bike. Like a exhaust pipe for some bottom/mid range power. And a flywheel weight will get you started....

But if you wanted to spend more money you could get the cylinder ported for bottom/midrange power. Or get a 144cc kit from eric gorr...(i hear those do wonders!)

Oh and get the sespension setup for your weight.
 

ghunter

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#4
In my youth - MANY years ago - I rode an '86 YZ125 at Tower City most weekends. The bike was fine as long as I jetted it properly for the elevation and temps I was riding in and kept it cleared out regularly with some wide open riding. If my memory of 20 years ago serves, there are enough open areas to keep a 125 opened up and have fun on the trails, too.

As for the rocks, install heavy duty tubes and run your tires closer to 16-18psi instead of 12-14psi and you should be ok. The extra pressure will help prevent the rocks from cutting into your sidewall and puncturing your tubes. Carrying a spare tube in the size for your front tire and some tire changing tools is also a good idea, just in case.

Have fun and good luck.
 
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#5
ok never thought about the tires but thats a great idea

ghunter said:
In my youth - MANY years ago - I rode an '86 YZ125 at Tower City most weekends. The bike was fine as long as I jetted it properly for the elevation and temps I was riding in and kept it cleared out regularly with some wide open riding. If my memory of 20 years ago serves, there are enough open areas to keep a 125 opened up and have fun on the trails, too.

As for the rocks, install heavy duty tubes and run your tires closer to 16-18psi instead of 12-14psi and you should be ok. The extra pressure will help prevent the rocks from cutting into your sidewall and puncturing your tubes. Carrying a spare tube in the size for your front tire and some tire changing tools is also a good idea, just in case.

Have fun and good luck.
 

SpDyKen

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#6
Yes, I'm on my 2nd YZ125.

I use them exclusively for woods/trail riding. Start by jetting it properly; major gaines here. Next add a flywheel weight, then a larger rear sprocket. You'll be happy with it by this point, and will know what you want to work on next; maybe suspension.

God luck!
 
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#9
pitbull49990, you best bet would be a KTM 144SX for trail ridding unless thats out of the price range. Then buy a RM, KX, or YZ and do what everone else suggested.
 
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#10
I run my KX 125 in the woods alot and its fine for the most part in open/easy to semi-difficult trails. In the real tough technical crap like steep, rocky hills, it is tough to keep the bike in the meat of the power. I personally havent done much modding to my bike for the woods, but the other guys have recommended some very logical things. I have softened up the suspension a bit and cleaned up my jetting in the woods.

The most effective way to use the 125 in the rocks is just to keep as much momentum as possible all the way threw the rocky section. I live in Western Mass and the terrain is very similar to what you describe in PA. You will definatly want to do some fork work, I have found by softening my forks up a moderate amount it has made the bike alot less harsh in the rocks.
 
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#11
yeah i would like too get the ktm 144sx but i want to buy sumthing used and around 1500 and i cant find and ktm 125's or 144's for that cheap thanks for the sugestion thoe
 
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#12
why buy a 2stroke that you have to mod for trails. when you could buy a trail ready 4 stroke. just my opinion.
 
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#13
Well what kind of riding are you gonna do? are you planning on mixing in a good amount of MX? Or are you gonna just stick to the trails? If so Joey has a point. It doesnt necessarily have to be a 4-stroke trail bike, but why not get a decent trail bike like a 200 Kawasaki KDX or KTM EXC along those lines. They have sweet powerbands and suspensions for the woods and even if you rode a little MX now and then they would definatly do fine.

Maybe even a TTR 225 or a CRF 230 or something, they are more on the playbike scale but it all depends on what exactly you are gonna do. Are you looking to go out and rip the woods as hard as you can or just causually trail ride?
 
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#14
i am going too do long distance trail riding alot of big rocks mostly all rocks probily no mx but the reason i want 2 get a 2 stroke is because its so light and manuverable around the trails(so im thinking) or possibly a crf250x i dont know if the crf 250x will be to big for me i am 5'7" 140 pounds
 
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#15
and joey you do have a good point too i would like 2 get a ktm 200 exc but i want 2 get sumthing used and i cant find many of them my price range is like 1500 possibly 1800