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brapp
08-16-2007, 08:58 PM
ok i had finaly done it. not i didnt learn to type yet but close. i have confirmed that the 450 rear suspension does fit in a 85 /86 250r with no modifications! basicaly i used an entire rear end from the 05 450r i had and started lookign and mesuring. the biggest mod i had to do was use the bushings from the r swimgarm in the 450r swinger. i could not use the 450 shock due to clearance issues but if you use the 250r linkage and shock the 450r rear end is a direct bolt in. the only mod you have to do is take a file and take a few thousanths off the swingarm wher ethe rear most inkage bolt connects. i used the 450r rear caliper and swingarm and axle and used the 250r shock and linkage for simplicity reasons. her eis a pic fo my most recent score and the end result with the 450 rear end.

Tri-ZNate
08-16-2007, 09:00 PM
The thing sits NICE. I cant wait to ride it this weekend. And Josh you spoke english in this post ;)

200x newby
08-16-2007, 09:08 PM
ill have to post picks of my 86 250r with the 450r rear shock i had to section the frame and the exhaust and get a master cylinder with the resivore built in but it was worth it.

Dammit!
08-16-2007, 09:21 PM
What's the length difference? And did you weigh it to see how many pounds this saves?

Tri-ZNate
08-16-2007, 10:02 PM
What's the length difference? And did you weigh it to see how many pounds this saves?

about -1

Roughly half the weight. The entire rear end feels lighter than the R swinger

Sits about 3" higher now. Its nice

jeffatc250r
08-16-2007, 10:42 PM
I have a complete 450 rear end on mine, i like it other than the fact that it sits a cpl inches shorter overall height that is.

atctim
08-16-2007, 10:42 PM
Brapp - you evil genius - looks swell - it looks to be shorter than stock from the picture. What does this do for front end lift? How it the chain alignment? Right on the money?

Nice work BTW.

Tri-ZNate
08-16-2007, 11:06 PM
Brapp - you evil genius - looks swell - it looks to be shorter than stock from the picture. What does this do for front end lift? How it the chain alignment? Right on the money?

Nice work BTW.


Timmoy! hey I'll get some actual dimensions saturday if he doesnt sooner. Chain lines up, raises the seat height up (Makes it steer like a 350x, as he said on the phone), and appears to give some more ground clearance under the engine. Its bad ass :lol:, the bike cleaned up nice from what it originally was

Billy Golightly
08-16-2007, 11:09 PM
all the axle/brake parts everything hooks right up? Hell I'm gonna buy one of these for the flat tracker. Been wanting a -1 arm anyways

jeffatc250r
08-16-2007, 11:12 PM
Hey 200x newby, you had to cut the frame and get a new master? Mine just bolted in?

Dammit!
08-16-2007, 11:12 PM
If only it were 1 inch longer...




(keep your jokes to yourselves you bunch of pervs! :lol: )

BigGreenMachine
08-16-2007, 11:29 PM
If only it were 1 inch longer...




(keep your jokes to yourselves you bunch of pervs! :lol: )



Haha you were the one that went there! :lol: :lol:

This was posted before about the swingarm fitting right? I think Brandon has a 450R swinger on his MX trike now?

Still cool regardless. :drool: :D

Jason Hall
08-17-2007, 06:05 AM
Dammit, If you use a 06-07 450r swinger It Is 1" longer than the 04-05 swinger :beer

Mosh
08-17-2007, 07:56 AM
This is awesome news.I can get new 450R aftermarket swingers plus 2 or 4 for super cheap.That is the route I will go on my 250R build.Thanks for the info Brapp.

Yamahondaman
08-17-2007, 10:13 AM
ok i had finaly done it. not i didnt learn to type yet but close.

:lol: :lol: :lol: :lol: ..

brapp
08-17-2007, 10:30 AM
hey ronnie gues swhat you need soem honda parts on your mantis!!!

brapp
08-17-2007, 10:36 AM
the chain alighnment apears to be spot on and if it is off its less than a 1 /16 inch. i tried usign a lazer do check it but its awkward. i think i am gogn to go with a 88/89 trx dogbone its shorter and willput ride height back to normal.or close to it.

BigGreenMachine
08-17-2007, 10:49 AM
Thats some good info right there, let us know how it ends up.

Aka_am
10-27-2007, 07:48 PM
any news for this?

Dammit!
10-27-2007, 07:51 PM
Dammit, If you use a 06-07 450r swinger It Is 1" longer than the 04-05 swinger :beer

So it's the exact same length as a stock R swinger? How about where the shock linkage hooks up, is it in the same spot (meaning the ride height would be the same)?

Huffa
10-27-2007, 08:28 PM
Nice job Brapp !

Did you ride it yet ?

Are the rotors and caliper pistons of a larger size then the R had ?

brapp
10-27-2007, 08:38 PM
well make a logn story short i have nto been able to rid eit much die to a fried clutch but i willbe bringign it out this upcoing weeknd on hazelton ride. i do feel the brakign action is bette rthan the stock 250r unit and it does increase the ride height and the travel it sits abotu 2 inches higher and adds another inch travelwhen used with the 250r dog bone. i think it actualy rides bette rthan stock. this triek is rimarlily goign to be a woods trike so the =1 willdo a world of good for me. and i hope to put some serious seat time on it this weekend comign up. yo shoudl coem out and ride with us!

Huffa
10-27-2007, 09:08 PM
well make a logn story short i have nto been able to rid eit much die to a fried clutch but i willbe bringign it out this upcoing weeknd on hazelton ride. i do feel the brakign action is bette rthan the stock 250r unit and it does increase the ride height and the travel it sits abotu 2 inches higher and adds another inch travelwhen used with the 250r dog bone. i think it actualy rides bette rthan stock. this triek is rimarlily goign to be a woods trike so the =1 willdo a world of good for me. and i hope to put some serious seat time on it this weekend comign up. yo shoudl coem out and ride with us!

I'll try and make it ! :beer

I imagine with a lighter rear end you should have a quicker reacting suspension then, follow the bumps better but at the same time should be a bit stiffer ?

Aka_am
10-28-2007, 01:42 AM
with this can you use the 450r linkage, to keep the ride height the same, or will it not work at all?

kxt250r
10-30-2007, 05:10 AM
any more on this..ride report?

Tri-ZNate
10-30-2007, 01:40 PM
any more on this..ride report?


What do you want to know? Its a wheelie machine with a far superior braking power. You can really tell the weight isnt there when you ride it, its like a feather ;)

Huffa
10-30-2007, 05:08 PM
Hey Brapp & Wheelie pop, I was just looking at the 450 today in a showroom and out of all the models it looks like there is a possbility?? that the 450 swingarm buffer could adapt to the 83/84 R swingarms!

It's on the opposite side so you would turn it upside down of course and it has two bolt mounts on side instead of one like on R and it would be really lucky if one of the two bolts would line up with the R bolt hole but I'm sure a remedy/solution for that could be figured out.

Most machines I saw, the buffer does not even lay on the swingarm, they are more or less aside of it, not so with the 450 though.

Not sure if both machines are at your house Brapp but could you guys eye it up, do a little measuring to see if it might work? I'd really apprciate it!

If it would, that would be fantastic !!

Here is the stock one just in case the machine isn't there, won't really help much but I had the pic's so might as well post them.

The R bolt hole is about 7&1/2" from the inside center of the front curve and about 1&3/8 down from top, it's approx 2&1/2 " wide (height actually) at the bolt hole area and the total lenght is about 8" from the inside of the center of front curve.

The width is exactly one inch.

I didn't have my slider with me or I would have an even better idea if it will work.

The 450 was a 07 or 08 model, not sure what year yours is or if the buffer is exactly the same ? I do know it's not as long as the R's, maybe 5 or 6" ?? but it still would work I think, even though it's shorter.