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KTM yokes-fitment

Taffy

Taffy

Joined Nov 2001
17K Posts | 774+
Ely, England
just to say that i've gone to fit some KTM triple clamps tonight and the bottom bearing that came (free) with the yokes fits up in to the frame nicely. however the top bearing is way different to the husey bearing from my '02 machine.

mine is a 25.5mm on a a steel post and what i need is a 29mm i.d. bearing that obviously suits the original outer cup.

for the record the bottom of the post has a 29mm o/d and the top a 29mm o/d also.

CAN I JUST SAY HOW PISSED I AM AT THE LACK OF HELP HERE? people get plenty of help from the site and i can say i gladly give it and give more than my share. but i know that there are about 3 sets of KTM clamps fitted around UHE and my obvious problem could have been avoided if JUST ONE PERSON had put up a thread saying what is involved in doing this mod/change.

i call that pathetic! :cry: :cry: to you i say phuq ya! whoever you are and several :p :p :p

i take my racing seriously and the lack of support is palpable and the input from some is derisory.

while i'm here i'll also say that the support given directly in building the 'owners doc' up is next to zero.

i think am at the beginning of the end with UHE if this is your best shot.

Taffy
 
I'm sorry that I can not help on the clamp fitment. I have asked about them in the past, but never ventured into actual fitment.

I hate to refer you off site, but I have found that KTMTalk.com has a very good support group with some top name tuners in their Suspension section of their board. They have also recently added a Husaberg forum, so the Husaberg specific traffic may pick up.



The good thing about this board is that it is Husaberg specific, and the bad thing about this board is that it is Husaberg specific. ...A lot of the knowledge can be lost due to people moving from brand to brand, and thus not visiting the board anymore.
 
Hey Taffy!
Wow, you sound kind of angry. Too bad you could not go on Bobzilla's ride to relax. I have KTM clamps fitted on my Berg. What I have found to be the best way is to have a new stem machined with the KTM dimensions on the bottom (the press fit area only), and of course the Husaberg dimensions on the top. The second best way is to have a press fit sleeve machined to adapt the Husaberg stem to the KTM clamp, and also one (slotted) for the KTM clamp up top. I went to a bearing house, and the ktm and Husaberg races are not the same. They are close. Probably close enough for government work, but I am confident you will not find the right bearing with seals. That is why I had to stick with the Husaberg spec bearings, if I wanted that assembly sealed. I wasted
a lot of time and money, coming to this conclusion. My pain, your gain.
 
brendan

you're obviously an intelligent fella but i have to ask how did you get your head trapped up there? (bob stop laughing-i'm being serious here!-i honest) :roll: :roll:

it's not enough that you're a student and people go out of their way to help you but you also conspire to offer advice AFTER i've done the work? what the hell use is that? shouldn't you be helping fellow bergers with the info when it's fresh in your mind and trying to save them some of the pitfalls and hassles?

i wouldn't want to be your mum. do you ever pick anything up? :twisted: :twisted:

so i'd better go check what i can do with this little lot then.

PS brendan-your last joke wasn't so don't try the avator one again.

PPS if i could i'd have your babies :eek: :eek:

regards

Taffy
 
ok these are the bearings

husey

post = 25.5mm
inner race = L44643R
Seal =L44600RRS-1
outer cup = L44610


KTM

post = 29mm
inner race = L45449
seal bottom is a KTM part
seal top is on it's way to me
outer cup = L45410

the OD on the KTM outer cup is the same as the huseys
although the numbers are different at L44610 and L45410, closer inspection shows there to absolutely no difference in them so it's OK to use the husey outer cup with the KTM inner race.

i'll keep you all informed as it all goes together. the previous owner is sending the bearing saving me £20.

regards

Taffy
 
I finally reckoned that you were talking about the triple clamps.

What you're saying is that a KTM yoke/triple clamps do(es) not fit a Husaberg?

Or that it can be done with some work?
 
quote from the very first line of the opening post by Taffy;just to say that i've gone to fit some KTM triple clamps tonight
you didn't spot the opening line nick.

Taffy said:
but i know that there are about 3 sets of KTM clamps fitted around UHE and my obvious problem could have been avoided if JUST ONE PERSON had put up a thread saying what is involved in doing this mod/change
Click to expand...

i'm saying they do fit nick!

regards

Taffy
 
ok this one is for the lads that have a katoom.

i have fitted the yokes (yes, i mean yokes, why to an englishman would i say anything else?) and i hate the fit.

it's very tight. unlike every other bike i've oned in nearly 30 years there appears to be no castle nut that simply tightens the taper rollers and bottom yoke alone. no! i have to clamp the whole lot up!! :? :?

anyway i did 15lbs and it fills stiff and ******.

anyone got any comments on this?

i'll check them out in the morning as i want to ride 'on the morrow'.

regards

Taffy
 
Hi Taffy,
To check/adjust a five bolt KTM steering stem(yokes)first put your bike on a stand so the front wheel is off the ground.With the 5 bolts loose, tighten the steering stem bolt(looks like a nut) until there is no play(determined by trying to move the front forks back and forth).When the play has been adjusted to nill and the fork moves smoothly lightly tap on the steering stem nut to release any bearing seat pressure.If there is no play and the steering is free then torque the 5 bolts on the yokes to 11 ft/lbs.hope this helps....nsman
 
cheers nsman

i was given some info that the husey yokes should be tightened to 20nm which is about 15lbs. however this clearly doesn't cross to the ktm.

it was the first time i'd EVER tightened up the castle nut using a torque measure and i think it went ok. however the ktm went awfully.

so it makes sense that less poundage per " is the problem.

BTW-as an offshoot. my father, 10-20 years ago was ALWAYS giving his snap-on torque wrench back to the rep and saying "i don't give a bugger, that thing has gone 'off' again!!!" and sure enough they would have to rebuild it.

so be careful with snap-on torque wrenches.

saturday

today i went testing at the swaffham enduro circuit. i started with 10mm of preload but pulled this out and then as the day went on dropped the forks through the yokes by 13mm. it may have needed more but i need spacers under the bars and the forks couldn't come through any more.

it's now like riding a bicycle at below 5mph-awesome. meanwhile i found it to be better in the corners as well. it has more weight on it and tracks turning nearer the circle of the centre of the bike (the front wheel tracks outside that arc).

because i've slipped the forks through i have also lowered the centre of gravity and in the last session the bike became very flickable. it was no longer a tall lumbering 4T.

thanks again

Taffy
 
rode with these yokes in again yesterday and it's like riding in a rolls royce!

the bike is so stable in a straight line! i have the rear wheel quite a long way forward at last having sorted the number of links out and so i guess that i have the shortest wheel base i'm ever likely to have.

going round trees and stuff, the steering is a lot lighter at low speeds. i'm getting a slightly conflicting message because the rubber seal that KTM supply works almost on a friction basis. so i will need to get a fatter washer to reduice this.

i now have the forks through 13mm and the preload is back from 2mm to 10mm to get the sag right (5mm is a spacer-anymore is preload so i have 15mm of plastic spacer).

the short offset clamps increase the trail which makes the bike more stable whilst when cornering brings the wheel more under the bike. at 5mph it's like riding a bicycle.

i have dropped the forks through which is reducing trail but also lowers the C of G and makes the bike flickable from left to right.

i've raising the bars 1", pushed them to their furthest forward position just as i had it set up with the berg clamps.

i've based more and more of what i'm doing on this report i put up from a british mag called TBM in which they tested the factory bike.

in my gallery is the test report of a factory 505.

regards

Taffy
 
no brendan

the husabergs are all 22mm and the ktms are 20mm on the big 4Ts. however there are models that are 16mm and they even went to 14mm for like three seasons i'm told on the 125SXs.

the last two numbers stamped on the lower TC represent the offset.

regards

Taffy
 
Ok stupid question I admit but it sort of fits here:

The handlebar mounting points are the same on the KTM and Berg TC's aren't they? Are the bolt holes the same, same distance apart etc? I would like to know whether an under-the-bars damper mount (like this) for a KTM will fit.

Told you it was a stupid question and yes I did search...
 
knopey

i would start your own thread to get that one answered! it needs it's own space and attention. but as i have stated here, the 14mm TCs offer more stability-not less!

regards

Taffy
 
Knopey,
I think you will find both bikes share the same 90mm centreline. I had a spare KTM mount which I could accurately measure, I measured the Berg one on the bike so not so accurate but very close
I just noticed yours is an 05, in which case the handlebar mount is exactly the same unit as fitted to the KTMs
 

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