Question about 250R swingarm swap

[dabomb_350x]

Anyone who has done this conversion does is there any chain alignment issues?

I got a '88-'89 swingarm and am looking to put a 400ex axle in it

[QuadCobbler]

The was a kid on on here but have not seen any post from him in a while (set the stage) he had a 300 with a 250r swinger, I think he bought it that way. He siad there weren't any spacers in the rear and the chain was fine. I have a feeling you going to get a few differant answers. I have a 400ex swinger but I had to put a spacer in the rear cause the chain was 1/4" to the left. But that is 400ex, a 250r may be differant. I would just take it apart and see how bad it is going to be. The worst part is the prolink.

[dabomb_350x]

The pro-link is no issue, that taken care of. I just trying to decide between a 400EX/250R axle and a 450R, I think the are a little different between them.

[QuadCobbler]

I think the swingarm on the 450 is different from the first (2) years vs. the rest of the years. the 400ex swinger is (1.8") longer than 300ex and I belive the first and second year 450 are (3") longer than 300ex. As far as widths go at the pivot point I have no idea. I know on mine (400ex swap) the 400 swinger fit right in and I used the 300ex pivot bolt and sleve. I just had to put a spacer on the sproket to move the chain over about the width of another sproket.

[XR200R]

250r and 400ex can use same carriers and axles. really you can use any trx axle on either one of them.

i am personaly not a fan of swaping out swingarm for somthing not designed for it.

i use to run a 300ex axle with a 450R antifade.

my buddy at hreatv.com can build you anything you need.