Early Berg Enduro to Supermoto Help

Hi,av being looking at the same problem i put a post ages ago to see if there was a big brake rotor that fits the early front hub the spindle size is similer to the early hub on a ktm but the PCD on the hub is totaly diff,i will be going to a big bike auto jumble,i will take my early hub and see if i can find somthing,if i can get 2 i will get you one aswell,or find what fitts,i think i have looked b4 and no luck,310mm would be well upto the job av just done my 2003 fe 400 on a 310 with std caliper and thats well upto the job.....leave it with me. as the rear you can get KUSH sprockets

Yeah KUSH always seem to have no stock in i know a guy who had one and it was fine no probs,16inch rims are ok quicker turn in aswell but poor tyre choice,i dont like ally wheels on tards but thats just me,if i find any disks they would be cheap im a tight yorkshire man so i wouldnt be paying much over £20 per disk hail keep you in mind,its bugging me to think there must be someone who already knows what fits i know what dont all ktms aprilla rs125 hondas,ccm,if it comes to it the best i may do is getting one to re drill the PCD and make that work,am on it so al keep you posted. :cheers:

P.C.D = Pitch Circle Diameter

There is a bit here that will explain http://www.gomog.com/allmorgan/wheeloffset.html

Re the front hub. You have a 17mm axle then for ANY wheel all you need to do is get bearings to go from the hole in the hub dia to the 17mm axle dia (provided the hole through the centre of the hub will allow you to fit the 17mm axle and a spacer tube.
The disk presents more of a problem, It is possible to space the disk off the hub or space the caliper off the mount IF the hub is narrower that the berg but much harder if the hub is wider as you need to remount the caliper further out.


Re the rear hub... I to am looking for ideas, I thought it would be easy when I saw the KUSH sprockets but they never look to have a stock. I have seen sprockets where the hole for the mounting bolts is quite large and a rubber bush is fitted into it. This is then bolted to the hub with a large washer under the bolt head to sandwich the bush against the hub and this forms the cush. Honda do it where you have studs bolted on the sprocket that fit in a bush pressed into the hub.

Im going to be taking some measurements on cast hubs. Most important as i see it is the distance between the sprocket and disk as these need to match the berg spacings, bushes can then be made to fit to the swing arm from the wheel bearings. What I have found though is the rim width is a lot less on a cast wheel if you find something with the correct sprocket/disk space.

I could do with finding out a rim to tyre width fitting guide.

Pete

Yeah the rears easy any ktm berg will fit ive put an old ktm on the rear of my fe400 to make it crushdrive ,and yes the KUSH website never has any, dunno why there looing sales all the time ive maild 3 time to say get your finger out but no reply.i wont rest till i find i disk that will fit the front so dont worry the other way is if you have the old disk just buy a 320/0r 310mm disk at a autojumble/swapmeet and get a egineering shop to cut the center out in weld it inplace? or bolts wouldnt be too hard,just looks a bit messy/funnky :idea:

my berg is a fe400 2003,the rear is an old 1997 ktm hub,as far as i know all 90s ktm/berg fill fit, its the front thats diff,the early berg hub is totaly diff to the ktm apart from 36spokes,the spindle is i think the same as the early small ktm 17mm,you cant go wrong with the rear,you may or may not need some spacers making up i dont think you will mine went in ok,i know your running a diff swing arm to me but the hubs are sameish,you get the back sorted and al sort the front :cheers:

hi, new to the forum having just bought a 2012 fe570. i've got a pair of cbr250rr wheels i adapted to a ktm 525exc a few years back. these will slot straight in to the hussie as all the specs are the same. but as noted above, they are hard to source in the states, although they do show up here and there. i know some guys have just had one or both wheels shipped over from australia or the uk. it's a bummer the new CBR250R in the states has completely different wheels and doesn't suit...

it's a pity coz the early model cbr250 wheels are the only ones where the rear hub is narrow enough to fit in the swingarm and not need heaps of tricky machining and adapting to squeeze in, but still have a decent width rim (four inches) to get a 140/70-17 or 150/60-17 tyre on the rear.

having done a pile of research when doing my conversion, just wanted to confirm that the ktm rear wheels are all interchangeable as long as the rear axle size is 20mm. from memory this covers at least the 97 to 2012 models? front wheels were different, 17mm axle up to 1999. then 20mm from 2000 to 2002. then 26mm from 2003 to current models. the discs have been 260mm front and 220mm rear the whole way.

if you want to check disc bolt hole patterns, then metalgear.com.au list the specs for all year models. i had a quick look and it seems husaberg used the same specs at ktm from 2000 onward, but had a different bolthole pattern from 1999 and back. the same bolt hole pattern has been used on ktm exc models from the mid 90s through to 2012. if you are after a cheap kato 320mm disc then check ebay. you can get non-floating ones from china for under $100, disc adapters for $80. i was very dubious about chinese discs but have now been using them for some time with no issues. the non-floating one on ebay looks like it could be the same one as used on the warp9 wheels. but i'd seriously consider a floating disc if you were going to be really pushing the front disc a lot.

i did mess around with a ktm stock cush drive rear wheel, it is a tad wider but just needed a narrower spacer (i think on the disc side?) to make it fit okay. unfortunately i didn't record any specs for this.

another possible option could be the cheap chinese motard wheels on ebay by crbmotor2010? i was wary of chinese wheels but googled around and nobody seemed to have any wheel failures. eventually got a non-cush drive set and was surprised at the quality for the money. a few mates got them too and none of us had issues (mind you we weren't racing or jumping on them). they now do cush drive sets too. if you wanted to take a punt on these, i'd just ask for maybe a few more sets of the cush rubbers. it would be hard to get replacements if they stopped production a few years down the track.

most new motard wheels will be set up for 26mm front axle 20mm rear axle. ktm do OEM front spacer kits for fitting these to katos/hussies with 20mm axles but haven't heard about similar kits for 17mm front axles. worth googling around though as someone must have started providing these by now? if not, you could always get some machined up to suit.

sorry about the long first post, but hope some of this info might be useful!

are you saying that the ktm cush hub wheels with 20mm axle are a tad wider than the ktm 20mm hubs without cush hub?

yep. as far as i could make out, the hub was a just a few mm wider. so to fit in the kato exc swingarm i think the disc side wheel spacer was just a bit narrower. but don't quote me, it was a few years back i did this!

Im not sure what you mean by these discs or adapters, i know they have some cheap ones for 99 and newer but but i didnt see pre1999, maybe i looked everywhere but the right place, i would be happy with a cheap one as im not really racing, if they fit but not sure they do....also not sure what you mean by cheap chinese wheels either?
i dont think the spacer machining would be hard

the cheap discs are just 320mm motard discs for ktm exc models on ebay, listed by chinese manufacturers. they will suit ktms back to the mid 90s as the bolt hole pattern is the same right through (as mentioned, earlier, check http://www.metalgear.com.au to check disc specs). but husaberg only started using the same ktm bolthole pattern from 1999 on (again, check this at http://www.metalgear.com.au).

when you use a bigger disc, you need a disc adapter to move your caliper further out. this gets called different things around the world, caliper bracket, caliper adapter, caliper extender, caliper relocator.

hope your berg does well for you, cheers :cheers:

only clocked up 4km but loving so far. i probably won't bother tarding it till it gets stinking hot again next december and i give up dirt riding for the summer. but if i do it sooner i'll post some pics.

Bergini said:

measurments taken from there site are as follows: wr426/f and yx426 all have same measurments for all years and are close enough to the berg it might work, inside clearance 118mm, bolt pattern circumference 134mm, 600bergs pre99 (they didnt have all models listed but everything they had back to 1992 was the same) measured as followed: inside clearance 120mm, bolt pattern circumference 135mm.......the yamaha's also have cheap 320mm discs available, will be a while before i try it but if anyone else does it sooner let me know how it bolts up...

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cool, that sounds like you could just drill out the bolt holes slightly to allow for that 1mm difference in bhc. the suzuki drz400sm has exactly the same bolthole pattern so you could substitute that disc as well, if the WR / YZ one works. the advantage there is it is a 310mm disc, the slightly smaller diameter makes it a hell of a lot easier to fit the caliper on when fitting. i used to scratch my front rim up a fair bit trying to get it on around that 320mm disc... :cuss:

cush drive hubs on the FE570

this thread is about cush drive hubs for motarding, but out of interest the cush drive rear wheel for a husqvarna te610e is an easy adaptation. unlike the te610, the te610e had a cush drive rear wheel and from memory was around 2003 to 2005?

i've adapted this wheel on my te610, wr450f and yesterday started setting it up on the new fe570. very easy fit, no spacing of the sprocket or disc required, and it has a 220mm rear disc and 20mm axle so the hussie axle slips straight in. the hussie swingarm is a bit wider so while the sprocket side wheel spacer works i'll need to machine a disc side wheel spacer that is around 6mm wider. just a bummer the front rim is anodised blue and the cush drive rear is silver...

suzuki dzr400 are the same as early front husaberg..........am not sure about that mate,i have a ccm hub thats basically a dzr hub and thats nowere near.

Just bumping this thread, because I'm in the SAME EXACT boat with my '98 501.
I'll keep you guys posted with what find out.

hotversiond said:

suzuki dzr400 are the same as early front husaberg..........am not sure about that mate,i have a ccm hub thats basically a dzr hub and thats nowere near.

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sorry for the late response... i'm not saying the hubs are the same specs. it's just someone said the bolt hole pattern for the WR426 was the same as early bergs. i was saying if that is the case, then the DRZ400 shares the same bolt hole pattern as the WR426. this would need to be confirmed at www.metalgear.com.au