I think a 125 would be ideal for starting off on, need to learn to ride one before going fast!!

 

Really depends on what your going to do with it?

 

if you could stretch the budget get a 250f, they are alot smoother and easyer to ride! wouldnt go to a park either best going to your local track, feilds have hidden rocks,holes,dogs etc at the track you will get all the advise you need to know to

 

4 stroke take a lot more maintenance mate and for Ł1000 he'd get a dog of a 250f so defo better with the 2 stroke.

 

i think 4 banngers are about same 2 maintain pistons and that same price ???

 

yeah but you have a labour charge on top of that if you dont know how to rebuild a 4 stroke, also valves could need doing, 2 stroke is piss easy anyone could do a piston on one of those

 

What a load of nonsense! Iv youve never had one before get as you said, 125's are awesome also hold there money well so in 6 months a year you can see where you are then move up. You can go very fast and get your self into a lot of trouble on one.

They are not like a 125 you would ride on the road.

Gaz

 

If a 4 stroke dropps a valve & wrecks the head it can be very costly 2 strokes are fact cheaper to fix

 

As said mate, just messing about with/learn how to ride one!

I saw a KX125 (assume it was a 125) on a trailor tonight, it's a sign

Re-building the engine shouldnt be a prob

 

A full rebuild on a 2 stroke is about Ł550... a rebuild on a 4 stroke starts at Ł1000 upwards. Not many people work on them either.

 

why would u want 2 do a full rebuild though?if u look after it piston, air filters etc u shouldnt have 2 rebuild them , go to a track and see how many 2 strokes you see, i had a kx 250 for years and never had 2 rebuild it, and had a crf 450 and never done a rebuild, if a piston broke on a 2 stroke and damaged barell ur a few quid there, ,i still ride a 2 stroke but 4 stroke is way 2 go

 

whats nonsense?

 

my mate changes piston on his crf all the time and he pushes a pen for a living

 

Im at tracks ever week. Where do you ride? I have friends who do this for a living... you clearly know nothing.

 

That they cost the same to repair.

Gaz

 

i used to race motocross for a few years ,quit 3 years ago due to bad knees and bottom of my back,if your only doing it for fun get a 2 stroke,yeah 4strokes are easier to ride etc but expensive if they go wrong and need a lot of maintenance if you rev em hard,personally id go for a ktm 125 they have a good revvy engine as standard, i also go adrenalintrip forum which is very helpfull and there is a mx swapshop on there you may bag a bargain

 

Where abouts are you mate? Have a couple of mates who have 125's. They would gladly give you a shot would 100% garentee after 1 ride it will be enough for you.. (just now lol)

Gaz

 

maintain

 

ok

 

smithy rs2k, cheers mate i'll have a look on there!

bigbobby, Glasgow mate...I wouldnt go on anyone's bike unless I knew what I was doing on it! thanks tho!! where abouts are you?


Looks like my pal might be swappin a car for a CR250!

 

Somebody who is getting into mx wont know how to pull the head of a 4 banger, you make it sound easy, and if he is replacing a piston in his crf all the time, then maybe he should be looking at getting into another sport

The whole pro mx scene is now geared towards 4t, only a few brand names now still make a 2 stoke bike, anyone riding a modern bike is 4t, thats why you dont see a smoker or as many as in the 80s and 90s ect, many many many people still prefer 2 strokes and by far the best bikes to start with

 

why, had his crf 5 years changed piston 1s a year never had 1 bit of bother with it engine was sweet .

 

Aye once a year isnt all the time lmao

 

Still not answered my question? Where and what do you ride if you're so clued up?

Go and ask you're piston changing pal how often he looked at the top end of his bike in those 5 years????

 

2 strokes are normally a lot cheaper to rebuild, plus they dont need valves adjusting etc.... some 4 strokes 'stretch' the valves if over revved aswell.

when i used to build mx engines & people asked about warranty, i always used to tell them that a moto-x engine is normally like a time bomb, its something that is going to be thrashed to death, don't expect it to last for ever

 

I would have another 4 stroke they are better to ride but as im only riding it for a bit of fun i dont want the big repair bills so opted for a 2 stroke as it would break my heart spending 1k plus if it dropped a valve & turned itself inside out. I have seen a ktm 450 drop a valve wasnt pretty. But saying that i had a crf 250 for a year & only ever changed the oil just luck i guess.

 

As Ollie says 4 strokes can be exspensive , espesialy when they start eating valves the older CRF's seemed to like doing that. Shimming is needed to keep them starting easily or they can be a nightmare.
Ollie who do you know that races for a living I know a few of the Scottish boys that have went pro through my mates that race.

 

I have a CR250 and it is a point and squirt machine and very hard to ride on a windy track as the power delivery is either on or off

I was at Thorsby Motocross circuit at the weekend and tried my mates 07 CRF 250

Although it has less power it has more torque and I was alot faster round the track, I felt alot more confident riding it too.

I'll be selling the CR and getting a CRF250 in the future, possibly one with an electric start

Honda aren't going to make worse bikes year on year are they?

4 stroke is the future for sure

(and that is coming from one of the biggest 2 stroke fans out there as I have had alot of 2 stroke bikes)

 

You cant say ones better than the other. Its purely personal choice. I have a road legal WR450f 4 stroke that i use for enduro's and green lanes, and its perfect for that. But on a motocross track it would have to be a 2 stroke for me everytime. So much better in my opinion.

As regards reliability of the two, yes the 4 stroke may last a bit longer in many cases than a 2 stroke, but it'll cost twice as much if it goes tits up, as already said this thread. And yes thats very true about 2 strokes being a time bomb waiting to go if using them 'properly'. I used to have 2-3 rebuilds a season usually.

 

i think one of the big reasons the manufactures started going back to 4 strokes was the emmission laws in the States, i remember when there was talk of outlawing 2 strokes in Californa.

 

If your pissing about on fields n that i'd get a 250, but if u want to get into track riding get a 125 and see how u go, i hadnt rode for 10+ years and went and bought a 2006 kx125 and took it straight to the local motocross track,

 

Theres plenty of power in a 125 especially to start with & you will learn more imo than jumping straight on a 4 stroke that nearly rides it
self !!


Crap pic but hear is me on my yz125 a couple of weeks ago....

 

Weres that at mate

 

Flackwell heath Highwycombe .......

 

I would get somthing like a 250cc or bigger for messing about, hacking across fields, I had a RM80 bored out to 100cc and it went like fuck it was a midi bike, trouble is was it got flat out in about 3 seconds then once you were there you didnt want to hold it wide open at about 11k for more that a few seconds, if i was getting another one to mess about on i would get a 450 4stroke for sure!

 

Hmmm, So are there any diffrences from a 125 to a 250 other than engine cc?

 

Um i'd say certainly in the case of 2 stroke, 125's are quick and 250's are just bloody brutal!! Not a first timers bike imo.

 

if i were you i would buy a trail bike first
125cc then when your confident enough
get a 250 whether i'ts 2 or 4 stroke
i personally would get a 2 stroke
also motox 125's imho scream there heads off

 

rode when i was younger had all sorts of stupid bikes but just picked up a cr125 to get me back in the game not gunna be to under powered or over powered so ill see how it goes

 

Are 250's bigger than 125's (actual frame size?)