86 250r With KTM85 Forks Installed.

[Jason Hall]

Here Is my 86R with 1BFC's (A member Here On 3ww's) front end Installed. He has a set of custom heavier springs on order to fit these forks. Once I get the springs, I will make a few changes to the valving and send them on their way.

Once I get this set fine tuned, the machinist will be ready to make a ready to bolt on kit. I will then post the kit In the new products forum. He Is building a set of triple's for The Goats 350x, so If you 350x guys want a set he will have those available also.



http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks2-1.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks3.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks4.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks5.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks6.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks-1.jpg

[The Goat]

sweet jason. Looking real good, how much beefier are these? 1/4 or 1/2 inch thicker?

Don't suppose you know where I can find a better set of springs for the ones I have. Seems like they will be a little lightweight.

[Jason Hall]

Goat, The clamps will all be made 1" thick. Mine on my 450 are 5/8" thick. I have never had a problem with mine being thinner, but people seem to question them. With the thicker material, the stem can be pressed directly In without a spacer on the bottom. These clamps are VERY plain to keep the cost down. If you want changes made or material removed to lighten them up some, he will do what ever you want, but has to charge more for that.

I know Race Tech makes heavier spring's for most any forks you will find.

[Dirtcrasher]

Nice stuff Jason, thanks for sharing :D

Are KTM80 our ONLY source for inverts?? Seems to be the way guys go, but they aren't cheap and need spring mods.

250CC inverts cannot be adapted? (without 3"s of fork sticking up through the tripple)?

Regardless, it's guys like you that WILL find the solutions all us trike guys need and THANK YOU for your continued passion, be it your own or yours to share with us :)

It just seems BAD that this is our only invert choice...... :(

The clamp fabrication doesn't frighten me, it's the other OEM's forks I have to buy and adapt.

[The Goat]

it's not the only choice...it's the only easy one.

you can just get the cr250 ones...and cut a portion of the spring out. it'll sit 3 inches lower...and unless you're getting serious air, will never be an issue.

Jason's guy can also rethread the forks and then you can shorten them and they will work exactly the same as oem.


I just went with cr250 forks...with cut springs. we don't jump anyways. but with an extended swinger...and extended forks, and suspension, and wide ass...you can keep the handling the same as stock but gain a buttload of ground clearance.

[Kintore]

DUDE!

that looks sick on there, cant wait to install mine at TF!

[Jason Hall]

DC, I realize that the forks are not cheap, and that will be the downfall for the Invert's. My machinist can make Triple's for any size forks. You can cut the springs to lower the bike down with 125/250 forks. The problem with that Is the front wheel will just drop when the front end Is unloaded. Inverted forks have flat spots machined Into them where the triple's clamp, so your limited on how far you can slide them up or down. I put CR80 forks on my boys ATC85R, but he Is light so they will work great for him with heavier springs that are available. I don't think anyone makes springs heavy enough for a grown man to use the cr80 forks on a trike. That stinks, because the CR forks are the correct length and are cheaper than the KTM unit's.

I will check with Russ (1BFC) to see If the same company can make custom springs for the CR80 forks.

[Billy Golightly]

Looks awesome! How'd that front caliper end up working out?

[harryredtrike]

very nice job on the inverts.

[Bigbore]

Do the triples have additional rake built into them or are the 0 rake?

[The Goat]

350x are zero rake I think, I don't know about the 250r.

[Jason Hall]

Billy, that little calipar Is one bad mammer jammer. It has 4 pistons, 2 on each side of the rotor. Another cool thing Is It doesn't use pins to slide on. As the pads wear, It centers It's self because It floats between the 4 piston's. The stock KTM85 rotor Is almost as big In diameter as on my 450R 3 wheeler. The stock 250R rotor Is 7-1/4" In Dia, the KTM Is 8-5/8" Dia, my 450r origionally from a 87cr500 Is 9-1/2" In diameter.

There Is 0 rake It these triple's, but the axle Is leading. The stock R has 6 degree's of rake built Into the triple's, with the axle trailing. The wheelbase with the new forks Is exactly 53". I'm quite sure a stock R wheelbase Is 52-1/2". That works out to be real close, and this thing turns NICE :beer

[KASEY]

very nice,,,, it gives it a more modern look, i like that, any plans for a rear update kit?

[Jason Hall]

Thanks Kasey, Yes I have a 450r swingarm kit partially done. I started one for Moshman, but have yet to finish It. After Trikefest I will get back on that and get It done. It will be a bushing kit to fit a 450r swingarm & linkage on a trx or atc 250r. It will Include a spacer to make the 250R carrier work In the narrower 450r swinger also. I would suggest using the stock 250R shock also as the 450r shock Is VERY stiff, and has a built In reservoir In the way of the airbox.

[Billy Golightly]

It works good then? Hahaha thats something, I never even bothered trying it because of the smaller sized line fitting it took, and the minimal pad area. It hung on my peg board for years until Russ mentioned he needed one. Atleast its getting some use now!

[fire1]

do you know what year ktm85 forks those are. is the ktm85 sx different

[Jason Hall]

Fire1, I sent you a PM.

Billy- I'm sure If you used your front brakes faithfully, the pads would wear out pretty fast. It does have PLENTY of grabbing power though. I'm sure another calipar could be made to fit. I'll check Into It.

[sandpuppi101]

It look's really good on there Jason,I think we'll have lot's too talk about when we get together next time.How many MM width on the fork tube od ?

[Billy Golightly]

Jason, Its definitely up to you, (I dont want it to seem like I'm telling you what to do, just offering up what I did on mine) I used the KTM450SX front caliper. I had to re-drill a hole in the mounting bracket, but its got a lot more pad surface than that little booger.


I need to drag my old Tri-Z out and do something with that damn thing sometime or another, thing rode awesome with these forks on it, thats for sure.

[Jason Hall]

Thanks Billy, thats just what I was looking for!!! I will let Russ know In case he wants to upgrade the calipar.

[fire1]

. He Is building a set of triple's for The Goats 350x, so If you 350x guys want a set he will have those available also.



http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks2-1.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks3.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks4.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks5.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks6.jpg

http://http://i237.photobucket.com/albums/ff42/Jasons450r/250rWithKTMforks-1.jpg

What forks are you going to use on the 350x i want to be gathering some ahead of time

[Aka_am]

whats the price for these?

[Jason Hall]

The 350x will be getting some 46mm unit's from a cr125. They will be for The Goat here on 3ww. His will be full length, along with a +2.5 swinger. His clamps will be done very shortly. The price Is 350.00 for just the triple's, Including the material. For a custom axle, brake rotor adaptor & your steering stem pressed Into the new lower clamp will be 500.00 total.

[The Goat]

not that it matters...but I thought I sent you forks for a cr250r? It may matter as I sent you the brake caliper for that as well?

[bigpimpin]

when is this going to be available for sale?

[The Goat]

just to give you a headsup bigpimpin, I'm sure you can get with Jason anytime.

[Jason Hall]

Goat- I'm sorry yours are 250 forks. They are showa's, I was mistaken. Honda ran some forks on both the 125 & the 250.

Bigpimpin- The triple's are ready to be sold now If you want a set, PM me or give me a call 1-517-206-7635.

Jason.

[The Goat]

SWEET. PICS PICS PICS lol.

[Jason Hall]

Here It Is ready for my boy to ride at Trikefest. This Is a different set of forks, and triple's. These are shortened cr125 forks. I need to get the rotor adaptor and front calipar mounted then she's done. Setting this thing up makes me want a 250R again :beer

http://http://i237.photobucket.com/albums/ff42/Jasons450r/86250r6.jpg

[fire1]

very nice work

[200x newby]

reviving the dead here, but have you had any luck running the KTM caliper and a 10" front wheel? I am having clearance issues, starting to hate the 10" front wheel since it has not worked out on my last 2 builds.

[Dirtcrasher]

Well, the hub you use makes a huge difference.

All the Honda front hubs work and look identical. but all of them have just a few MM's difference from the mounting point of the rotor or the rim lugs mounting area.

[200x newby]

Well, the hub you use makes a huge difference.

All the Honda front hubs work and look identical. but all of them have just a few MM's difference from the mounting point of the rotor or the rim lugs mounting area.

85/86 R hub is what is being used.

[atc300r]

What size tire are you going to run. The front tire on the #747 and 21 in the pic on the top of page are 22x7x11. Ray Eldridge sells them. I raced with him on April 29. Two other guys racing also use them said they work great for riding and racing. A plus is they mount on your stock 11 inch rim.I think they sell for about $60 plus .
85/86 R hub is what is being used.

[200x newby]

What size tire are you going to run. The front tire on the #747 and 21 in the pic on the top of page are 22x7x11. Ray Eldridge sells them. I raced with him on April 29. Two other guys racing also use them said they work great for riding and racing. A plus is they mount on your stock 11 inch rim.I think they sell for about $60 plus .

I don't have an issue running the 11" rim as I have one that needs polished and has a brand new tire on it. I was just trying to run the 10" because its a nice new polished rim/new tire that bought specifically for one of my 2 trikes. I suppose I'll just sell it off and get the stocker polished.

[Dirtcrasher]

If it's a correct custom 10" like Johnathan Honerlaw was/is selling, it's nut the rim.

It's the combination of the hub and the spacer.

If you center the wheel on the hub, measure what you need for spacers, and check the disc brake positioning as well.

One side may need trimming and the other side you may need another spacer. If you can draw it, I can make it.....

[200x newby]

If it's a correct custom 10" like Johnathan Honerlaw was/is selling, it's nut the rim.

It's the combination of the hub and the spacer.

If you center the wheel on the hub, measure what you need for spacers, and check the disc brake positioning as well.

One side may need trimming and the other side you may need another spacer. If you can draw it, I can make it.....

Wheel is perfectly centered. It is the 10" John was selling as well, not dogging him or the wheel AT ALL, they were intended for stock forks and brakes which I am not using. The problem is the KTM caliper has the bleeder on the inside of the caliper, remove the bleeder fitting it fits better but still hitting and not allowing to bolt the caliper to the forks. The rotor is also sitting where it needs needs and couldn't space it towards the fork more if I wanted as I don't have the room (VTX triples). I'm figuring after looking at it more, using the R rotor would bring me down enough to clear the rim but would require a custom bracket to bring the caliper closer to the axle OR use the 11" OE rim and use the KTM rotor. I thought maybe somebody had already used this setup and may chime in but its not looking this way.