250r INVERTED FORKS [Archive]

KASEY

11-28-2009, 07:21 PM

I have found an almost bolt on setup for the 250r,,,, 10.5 inches of travel. OEM triple clamps with zero degrees built in ,leading axle forks with caplier mount on the same side as a 250r. yep OEM from honda triple clamps. its going to take a little spacer work but no machine work... i am currently getting all the part numbers so i can see how expensive its going to be new .. but that means there are alot of used ones out there to find ,,, here is a pict of the setup with a front hub .. it will even use the stock 250r axle,,,
http://i48.tinypic.com/zwzzb7.jpg
http://i49.tinypic.com/260eslx.jpg
http://i46.tinypic.com/23s6xbb.jpg
http://i50.tinypic.com/2iaz791.jpg

Dirtcrasher

11-28-2009, 07:35 PM

AWESOME!!

Whats it from, lol.............. How long until you tell us and the search begins :D

ctk

11-28-2009, 07:40 PM

Kasey could you please explain to me the advantages to an inverted fork. I have heard of it but do not know what it is.

Dammit!

11-28-2009, 07:54 PM

So did that last 250r build turn your 70 fetish into a 250r fetish or what? :lol:

Nice find. Looking forward to hearing more about it.

KASEY

11-28-2009, 08:48 PM

hmmm, i was on a 70 parts mission when i found the triple clamps ,,so i got side tracked,, so now i am going to put this frontend on kellis 86 with a 6+ swinger and the 370 out of the trx!!!

harryredtrike

11-28-2009, 08:48 PM

sweet,be sure to get part name and part numbers up with years.

KASEY

11-28-2009, 08:51 PM

Kasey could you please explain to me the advantages to an inverted fork. I have heard of it but do not know what it is.

20 year newer suspension technology!! the ride is fantastic with a little more travel too,,,

Billy Golightly

11-28-2009, 08:55 PM

Oooooooooooooh!!!!!! I wanna hear some more about this! Streetbike maybe??

KASEY

11-28-2009, 09:06 PM

yes the triples are off a streetbike,,, the forks are not,,, they were not a set ,, i looked for a week to find the forks,, i am now verifiing the year and brand before i spill the beans,,,

devilman

11-28-2009, 09:12 PM

i was thinking street bike but can't figure out the model. thought it might be a 600.

Billy Golightly

11-28-2009, 09:16 PM

Kasey that is absolutely fantastic research and a find of the year in my opinion! Looking forward to learning the specs of everything once you get it figured out :)

JohnR.

11-28-2009, 09:48 PM

Please keep us up to date.

Bigbore

11-28-2009, 09:53 PM

yes the triples are off a streetbike,,, the forks are not,,, they were not a set ,, i looked for a week to find the forks,, i am now verifiing the year and brand before i spill the beans,,,

Your worse than a girl holding out like that..... :beer

Xowner

11-28-2009, 10:03 PM

spill it kasey or i tell everyone about the crappy 70 parts you sold me!!!! :w00t: :w00t: :D shens

KASEY

11-28-2009, 10:11 PM

LOL GO AHEAD !!! remember i am the good guy here!!!:lol: :lol: :lol:

Racerguy381

11-28-2009, 10:47 PM

Figured someone would figure out the streetbike triple clamp sooner or later. Im surprized I havent seen any Tecate's with Inverted forks. Or has someone done it an not posted pics?

3Razors

11-29-2009, 06:36 PM

Kasey could you please explain to me the advantages to an inverted fork. I have heard of it but do not know what it is.

I remember reading in a Dirtbike mag article about forks is that conventional forks were better suited for trail riding and inverted forks were better for motorcross and big jumps.

freaksfix

11-29-2009, 08:09 PM

Thats realy cool!! Ive wanted to put inverts on my R forever now, but have always been too cheap.. Cant wait to hear what bikes they came from and start searchen..

audioworks04

11-29-2009, 11:50 PM

900rr?
How's it compair in overall in width? What forks are those from? Able to mill and press in the 250r steering stem?

i58829

11-30-2009, 12:33 AM

Man the prices for the pieces are gonna be through the roof on ebay everytime someone bumps this post. I really want to do this to my R but doubt i can afford it even with the bolt on. Is the steering stem length the same as well? It just seems too easy...

Dirtcrasher

11-30-2009, 11:12 AM

Nope, it's not a 900rr. I'm pretty sure I know what it is though..........

Yes, unfortunately every guy with an R and some $$ will be all over these for awhile. We'll be bidding against one another :lol:

Youngrasher

11-30-2009, 12:12 PM

Good find. It looks like the forks are a smaller diameter that the holes in the tripples, I bought a tri-z once that had 85 forks in 86 tripples and a bush made to fit the difference in the fork diameter. I never trusted it and swapped them straight away. When will we find out what the tripples are off.

inv3ctiv3

11-30-2009, 12:17 PM

I would love to do this on my 350x.....Anything that works for 350x's?

Dirtcrasher

11-30-2009, 03:58 PM

The forks look to fit fine in the triples, Kasey said "near bolt on" so I doubt the tubes need bushings.....

The 350X has rake in the triples so these would not work I don't think.

I think the triples rhyme with "Damn fee!!" :D

phil53

11-30-2009, 04:05 PM

2002 cr80 forks?

Youngrasher

11-30-2009, 04:30 PM

"Damn free" you say. I can't think of a honda in the uk that rhymes with that. Anymore clues?

SeaBass8

11-30-2009, 08:05 PM

Kasey I see you on the site right now...

C'mon give it up!

Edit: Not trying to rush you just very interested as everyone else is.

inv3ctiv3

11-30-2009, 08:11 PM

It's kinda lame people keep this stuff a secret, who cares? Wouldn't you want other trikers to have the better ride of newer suspension? I don't even have a 250R and I wanna know....

The Goat

11-30-2009, 08:24 PM

whiney whiney whiney

350x tripples have rake built in...do what?

last I heard zero rake triples, 35in cartridge forks, and a +2.5 swinger netted you a 58 inch wheel base....

why would you want anything else.

Yamada

11-30-2009, 08:57 PM

It's kinda lame people keep this stuff a secret, who cares? Wouldn't you want other trikers to have the better ride of newer suspension? I don't even have a 250R and I wanna know....

Slow down!! He want to be sure it is basically a bolt-on affaire before he tell the part required! It is not a couple days of waiting in your life that will kill your passion!

KASEY

11-30-2009, 10:52 PM

It's kinda lame people keep this stuff a secret, who cares? Wouldn't you want other trikers to have the better ride of newer suspension? I don't even have a 250R and I wanna know....

OK .. take " HN " and you tell me what year and what bike it is!!!! better yet SHUT UP! OH by the way you care because you posted,,,, so just sit there and be quiet while i do all the work.....................:rolleyes: :rolleyes: :rolleyes:

inv3ctiv3

12-01-2009, 01:21 AM

OK .. take " HN " and you tell me what year and what bike it is!!!! better yet SHUT UP! OH by the way you care because you posted,,,, so just sit there and be quiet while i do all the work.....................:rolleyes: :rolleyes: :rolleyes:

Jesus christ chill out, I thought you were just withholding info, I only skimmed the thread, didn't realize you didn't have it figured out.

The Punisher

12-01-2009, 10:18 AM

:shiftyeyes:

johnny's X

12-01-2009, 10:23 AM

I am willing to wait for this combo. This should save some huge money on tripples

Dirtcrasher

12-01-2009, 12:53 PM

If anyone cared to read his first post, he's checking on availability and cost of BRAND NEW PARTS before letting it all out. Then we can all fight over the used parts, :lol

NEVER EVER rush a guy with such an amazing update and willing to share!

SeaBass8

12-01-2009, 01:30 PM

I think the triples rhyme with "Damn fee!!" :D

Lets see...

Damn fee...

What could it be...

Maybee...

Valkyrie!

Ok I currently have too much time on my hands.

devilman

12-01-2009, 02:27 PM

the clamps are from a cruiser aren't they?

Red Rider

12-01-2009, 03:31 PM

If anyone cared to read his first post...Well said Dirtcrasher. Usually the answer to the question you're about to ask has already been answered earlier in the thread, that's why you should read the thread before asking questions.

Tecate250

12-01-2009, 04:22 PM

:lol: :lol: :lol: I love impatient people. No one else tried it and think everyone should share. Wonder what else people are holding back. This could be great for my upcomming atc 250r build.

Hipower

12-01-2009, 10:35 PM

Lets see...

Damn fee...

What could it be...

Maybee...

VT hummmmmmmmmmm lets wait and see.

aproudcanadian

12-01-2009, 11:04 PM

this is my guess 02 VT1100C

eyecekold1

12-01-2009, 11:29 PM

I think its cool that someone is checking out what works with what. I can tell you that a good amount of cheap chinese parts work on our 3 wheelers. Its like waiting for christmas as a kid.:TrikesOwn

200xkwit

12-02-2009, 01:45 AM

hmm i cant belive i ahvent thought about this.... well if its a cbr 600 i got about 3-4 guys with literally over a dozen of them in there shops ...most wrecked one guy here in rochester runs a busniess were he buys repos and insurance coverd recked bikes and re sells them for parts.... just say the word on the years and i should be able to get a couple tripples for cheap! ... guess i got an excuse to buy an r now eh?:w00t:

KASEY

12-02-2009, 02:38 AM

don't get excited its not a 600 :lol: :lol: :lol:

TURBO1

12-02-2009, 02:46 AM

Hey guys hang out here alot really like it (i read everthing) but i have to say vtx 1800 triples would be my guess!!!!!!!!!!!!

85 250sx

12-02-2009, 07:31 PM

this is some sweet news! ive always like the look of inverts buth always thought it would be to much trouble to make it happen

Black86tri-z

12-03-2009, 12:59 AM

It's kinda lame people keep this stuff a secret, who cares? Wouldn't you want other trikers to have the better ride of newer suspension? I don't even have a 250R and I wanna know....

http://i187.photobucket.com/albums/x89/edwardbayntun/gifs/SamJackson.gif

ditchmud

12-03-2009, 02:55 AM

http://i187.photobucket.com/albums/x89/edwardbayntun/gifs/SamJackson.gif
That is so effin true!!!! Off topic but this should be my signature because that is one of my biggest pet peaves about this forum.

Mr. Kasey, please enlighten us when you have it all figured out. Thank you

KASEY

12-05-2009, 07:20 PM

well with one small spacer the clamps convert to a 250r stem very easy . so installation on a 250r is a snap.. just a little grinding to clear the top nut and they fit pretty nice,,, the clamps are for a late 90's VTX1800 HONDA,, SO LET THE SEARCHING BEGIN,, the forks i have are 1 inch longer than stock 250r forks .. there are no identifying marks on them so i can't say what they fit,,, it appears they might not be japanese either,,, i am still searching on the forks its going to take a little work on the front brake,, the disc is going to have to be a little bigger to get a full width into the caliper,,, but i have them mounted and the brakes are the only issue i have to finish,,, the clamps fit the forks on the lower but i will have to have a shimm made for top one .
http://i46.tinypic.com/4rtctu.jpg
http://i50.tinypic.com/35kr6fp.jpg
http://i47.tinypic.com/2cog8cy.jpg

devilman

12-06-2009, 11:41 AM

late 90's? 02 is the oldest vtx 1800 i can find.

Hipower

12-06-2009, 12:48 PM

Did you try any other forks?

Billy Golightly

12-06-2009, 06:27 PM

Kasey, so can you give us ID measurements of the tripples so we might be able to find something to cross over?

250rmanfmf

12-06-2009, 08:25 PM

I was very interested in this thread and followed it cause I too want inverted forks but didnt want to spend $400 on triples.

Come to find out I know what forks you have! You have a set of Aprilia RX125 Front Forks part #S1100HGS810. I have the same set (was on ebay now there off;) ;) ). They are about a 1/2 inch shy of a stock 250r fork. Also Good luck finding a set. They are not that easy to come by. But with all the Chinessee and Italian made parts about 99% of them were produced already by the big 3.
For example- the Kasea 50cc dirt bikes, there motors are the same as a KTM 50 jr. also Kasea Skyhawk 170/250, alot interchanges with Blasters. Kasea/eton parts swap with Polaris Scrambers.

From what I can measure on the forks (if my calipers read right) is the top part of the forks are 50mm & bottom 54mm. They are about 34 inches from the center of front axle up to top of forks.

Now I just need a triple clamp :w00t: :w00t: :w00t:

Tyler

250rmanfmf

12-06-2009, 08:31 PM

here is a pic of the forks I have

Billy Golightly

12-06-2009, 09:07 PM

Those dimensions sound very very close to the KTM85SX forks that I used on my tri-z that have now become the popular switch. I think they are 56mm at the bottom clamp and 49mm at the top from what I can recall from memory, so with a very minimal bore job you'd be setup to run them which are maybe easier to find parts for. They've also got full re-bound dampening adjustments (those forks didn't look to have it from the pics Kasey posted)

KASEY

12-06-2009, 09:07 PM

wow ,, are there any numbers on those forks anywhere? i searched through 200 sets of forks to find these,, they are as close as i could get to the stock length and have the caliper on the proper side,,, can you post a pict of the caliper bracket and the mounts on the forks? thanks

Bryan Raffa

12-06-2009, 09:29 PM

wow is right,, what are the chances of a guy having the same set of Aprilia.. forks...

KASEY

12-06-2009, 10:49 PM

well i did stay at a holiday inn last night:lol: :lol: :lol:

Dirtcrasher

12-06-2009, 11:03 PM

Regardless, it's a great idea but the chances of the 200 or so of us getting all the parts are about as good as a scratch ticket.... However, I do thank you very much for sharing!! :D

Fortunately I have 7' of 1"x4" 6061 aluminum and a Bridgeport so I can make my own triples. The forks themselves don't seem very abundant so the search continues. But, at least you shared your info :beer:

Sorry to my good buds, I have to keep this alloy for myself. But, creative steel is always an option :beer:

I guess I'll just try and grab some 125 or 250cc forks from the big 3 and I'll ask Goat how his work out........

Any way you slice it, it's big $$ for forks. Maybe finding a YZF, using the forks and popping the motor into a Honda chassis is the best way to go. IMO Honda still do9esn't make the best thumper powerplant which is a damn shame :(

And...... I need some rake anyhow being a 350X. OR. I'll pull a Jason and mess with the rear shock height or chop the neck to the desired rake.

There are other triples that appear similar but I don't have junkyards like you do Kasey so I may just have to make them. Fortunately, I do have a nice boring head and the outline can be hand milled and blended in.

But, if I must pay 300$ smacks for awesome forks and make the rest myself, it may very well be worth the work involved!!

I wondered what fork you had, 2 piston calipers aren't on many of the newer MX bikes.............. Didn't seem like anything I had seen before............

Thanks again for sharing!!!!!!!!!!!!!!!!!!!!!!