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View Full Version : 250r A Arms???


416HiRoller
03-15-2005, 05:07 PM
Will 250r a arms fit a 400ex? I am looking into buying some from a guy on here, and wasn't sure if they would.
416HiRoller
03-15-2005, 07:02 PM
No one knows this????? All I need is a simple yes or no and don't even need an explanation if you don't want to type.
underpowered
03-15-2005, 07:05 PM
yse they will fit
416HiRoller
03-15-2005, 07:07 PM
Thank you.
416HiRoller
03-16-2005, 05:30 AM
One more question, some people say they will and some say they wont, have any of you ever tried this?
416HiRoller
03-16-2005, 02:35 PM
bump...
416HiRoller
03-19-2005, 09:40 PM
Anyone else know? I am looking at a pair and need to know soon. Someone said that they will fit but they don't ride as good as the stock a arms. But I am getting +2's if they do fit, not the stock 250r a arms.
Thanks
NikNacs67
03-19-2005, 11:34 PM
They will. I had a pair from an '88 on my old 2001 400ex and they worked perfect.
416HiRoller
03-20-2005, 05:54 AM
Well thanks for the info. I'll tell they guy, I'll take em'.
Thanks Again
seven
03-20-2005, 07:55 AM
No they wont, Not without some cutting. The 400ex will go onto the 250R with spacers.I did this a while back when I had a 250R and bought a 400ex. You can make them work with minimal effort but you have to take around 1/8 to1/4 off the arms to get them to bolt up to a 400ex.
NikNacs67
03-20-2005, 10:18 AM
I just grinded a bit off the a arms with the bench grinder.
seven
03-20-2005, 04:04 PM
Its not hard but its not a direct bolt on
416HiRoller
03-20-2005, 06:02 PM
Ok well I'm glad that I know what I need to do and thanks for the info.
Dustin
416HiRoller
03-20-2005, 07:05 PM
Will this hurt the ride any if I get them say 1/8" off or 1/16" off? And when I grind them and everything will I use the 250r spacers or the 400ex spacers in them? Oh yea will it move the placing of my shocks where they attach to the a arms?
seven
03-20-2005, 07:51 PM
You have to grind were they atach to the frame. The bolts that hold your a arms to the frame. Those sleeves need to be taken in about 1/8 on each side
416HiRoller
03-20-2005, 08:02 PM
So they need to be grinded on both sides of the cylinder shaped end one end of one of the a arms? Does this need to be done to only one side of one a arm or both sides?
seven
03-20-2005, 08:19 PM
Both sides need to be worked down
ReconRider25
03-20-2005, 08:28 PM
how does using 250r a-arms on a 400 work performance wise? isnt it different geometry or does it still work and handle just as good?:confused: it may fit but how does it perform?
416HiRoller
03-20-2005, 08:30 PM
Yea I would also like to know that. Anyone that's every tried it with +2's by any chance?
seven
03-21-2005, 04:41 AM
Shock ocation and geometry are the same. And the shocks I did this to was burgard longtravel +3 arms that I had on my 250r and then put on my 400ex.
jonc623
03-21-2005, 10:24 AM
i got + 1 arsfx aarms on my 400 from an r and they work great had them milled off at a machine shop to fit stock 250 r 88 -89 style will fit by just changing bushings
416HiRoller
03-21-2005, 03:29 PM
So if they are the 88 or 89 style a arms, I don't have to mill off anything?
ReconRider25
03-21-2005, 06:51 PM
thats what hes saying. alls you have to do is change the bushings and they will fit.
416HiRoller
03-21-2005, 07:03 PM
That's what I thought he meant but I wasn't sure if I understood right.