82' 430 CR fitted with front and rear disc brakes ?

[hawaiidirtrider]

So I don't know how sacrilegeous this is but just wondering if anyone has gone this route already or even thought of it . If anyone has I'd like to take notes and see what might work and what might not. I know stock is beautiful and all and still works great as is ....but I'd kind of eventually like good brakes on my 430. I think that's the biggest negative on that bike and addressing that alone ought to make it a much better bike. I've been looking at my cr honda 01 and my gasgas and looking at figuring where the mount might have to go and how it has to clear over the footpegs.. The swing arm has to have some section to lock a rear disc guard that I plan to put on also.. I have a kx 250 scotts spare disc guard right now.. Actually I have some partial rear brake parts from different bikes here and there but I think I might as well buy a whole rear brake setup.. caliper , line, pedal etc.. I see some relatively new ones on ebay or good prices and that might be easier. .. since I have a kx scotts rear disc guard I might go the kawasaki route.. Anyway this is all preliminary investigation but I figured I'd just throw it out there. This probably doesn't work for a bunch that are going for the VMX fun .. but this is just a route that I've been thinking about for many years.. A great simple reliable fun powerful air cooled big bore 2 stroke that actually stops when I want it to. It's light and has 6 speed. That's just an awesome projection of a bike in my book... Thanks ahead of time!!!

 

[jo360]

i converted my 83/84 to a early 90s yz 250 front end, bought the forks, triples,front wheel and brakes for $250 spent another $200 on rebuilding the forks and caliper, you can use mitsubishi wheel bearings, as steering bearings and you require a 10mm spacer under the top triple as the frame stem area is shorter on the husky.
i find the rear brake more than adequate and actually prefer it to the hydraulic units.
if you convert the rear you will have to fabricate a mount.there is a picture look at bitza 430 in restoration forum.
mainly wanted decent front brakes as we ride an area were things like washouts and rutts tend to blend in with the pea gravel that is everywhere here.

 

[hawaiidirtrider]

I see hidez1981430cr has a disc up front. This is the first I've seen so far.

 

[jo360]

the early husky units weren't very good, i would go with a newer version, the bembos seem to be average after a few years, nissin would be my choice if your going with an older unit.if your going to go upside down forks stay away from the bigger mx units as they will be harder to plush out had good success with wp43s, shiver45s and now the kayaba43s motorsportz lc 400 has a latter front end fitted and has good info, another option might be a drz400 conventional as these can be tuned into a great off road plush fork.

 

[2premo]

I see hidez1981430cr has a disc up front. This is the first I've seen so far.

that is essentially a 1987 front end, unless I'm mistaken the legs are the same diameter so you could slip the forks and front wheel onto an early model mount the master cylinder and your off
as to the advantages, water is the biggest reason, but fade is a biggie if you ride fast
I am in the process of replacing the rear drum on my 87 430 with a disc just to try it

 

[Huskerdoo]

I got a front end off an '88 YZ250 and put it on my '84 XC500. 43mm forks versus the Husky 40mm, so I went with the yz triple clamps with the husky spindle pressed in (with an adapter). Fork and brake action are nice, but the YZ triples have an increased offset vs the Husky. It lost it's stable feel. I think I may have the husky triple hogged out to accept the YZ forks over the winter

 

[2premo]

I got a front end off an '88 YZ250 and put it on my '84 XC500. 43mm forks versus the Husky 40mm, so I went with the yz triple clamps with the husky spindle pressed in (with an adapter). Fork and brake action are nice, but the YZ triples have an increased offset vs the Husky. It lost it's stable feel. I think I may have the husky triple hogged out to accept the YZ forks over the winter

not positive but worth a look is the 93-95 Husky ran USD Showas and I think they were that 43mm but the upper tube might be different, if they are the same I don't think they had anything as far as offset triples, personally I would do a lot of considering before boring out the triples
the YZ had inverted forks right??? if so you can't do anything with your conventional triples

 

[2premo]

my bad it was 89 the YZ got it's USD forks

 

[justintendo]

that is essentially a 1987 front end, unless I'm mistaken the legs are the same diameter so you could slip the forks and front wheel onto an early model mount the master cylinder and your off
as to the advantages, water is the biggest reason, but fade is a biggie if you ride fast
I am in the process of replacing the rear drum on my 87 430 with a disc just to try it

looks like a bit earlier isnt? 87 88 had the big lug on the fork leg dual piston brembo...85-86 had the two small bosses for a single piston brembo

 

[hawaiidirtrider]

Yea if going with a whole front end that might be easier and harder..well actually just have to scout out a triple clamp that's close to husky offsett.. or going to some place like emig racing and have one made with a stem for a husky. The later husky strategy seems good too. To put on a husky later model triple clamp an whole front end is seemingly a simple one if everything fits and able to find a decent front end. There's a lot of options and variations to choose from. I'll just look at what I have as far as parts first and also look at my other bikes for ideas. A newer generation forks... say one like on my cr ought to be a nice addition. My honda cr forks are excellent and the brakes are great.. For the back I'll have to look at axle diameters. If I can find a newer bike with the same rear axle diameter that would be a much easier start for the rear disc brake setup . I guess I can just start with looking at what I have to compare.
For where I am the brakes get wet. The drum brakes are a loser there. I haven't had any brake fade with my front cr disc brakes.

 

[2premo]

the early husky units weren't very good, i would go with a newer version, the bembos seem to be average after a few years, nissin would be my choice if your going with an older unit.if your going to go upside down forks stay away from the bigger mx units as they will be harder to plush out had good success with wp43s, shiver45s and now the kayaba43s motorsportz lc 400 has a latter front end fitted and has good info, another option might be a drz400 conventional as these can be tuned into a great off road plush fork.

funny your comment about Nissin being superior to Brembo, Nissin builds Brembo under license for the Japanese market

 

[1982 XC 430]

If You take a look at my Picture You will see what I did. 97-99 KTM Marzooki's. Both they and the Suzuki RM's of the same era were known for some of the best Forks ever. Shortly there after every body went to the Upside down forks ( OK they had be switching back and forth for a wile but finally made up there mind) and got worse for a wile. I wanted to keep the right side up Vintage look but You don't need to. This set up pretty much bolted right on, You need to pull the Husky Plastic Lock to Lock plugs out of the Frame. I have a little less Full Lock than I did before, but only because I won't Cut the Husky Tabs of the frame. As far as the rear goe's my riding style doesn't use it much and a Rear Drum doesn't stall an engine like a Disc will. It would take some engineering to adapt. I like the Bolt On quick and easy. And Yes this is an 82 XC !

 

[hawaiidirtrider]

If You take a look at my Picture You will see what I did. 97-99 KTM Marzooki's. Both they and the Suzuki RM's of the same era were known for some of the best Forks ever. Shortly there after every body went to the Upside down forks ( OK they had be switching back and forth for a wile but finally made up there mind) and got worse for a wile. I wanted to keep the right side up Vintage look but You don't need to. This set up pretty much bolted right on, You need to pull the Husky Plastic Lock to Lock plugs out of the Frame. I have a little less Full Lock than I did before, but only because I won't Cut the Husky Tabs of the frame. As far as the rear goe's my riding style doesn't use it much and a Rear Drum doesn't stall an engine like a Disc will. It would take some engineering to adapt. I like the Bolt On quick and easy. And Yes this is an 82 XC !

Sounds great! Thanks!! I'll be scouting out more stuff locally and ebay now... still waiting for my shifter. I haven't even been able to see where my bike in my avatar is yet mechanically. It didn't have a shifter, kick starter and a couple other things when I bought this bike the other week... So I'm scouting out longer range stuff to do to this bike like disc brakes. I appreciate you sharing! Your set up sounds great and easier than some other ideas.

 

[jo360]

funny your comment about Nissin being superior to Brembo, Nissin builds Brembo under license for the Japanese market

just my personnel experience, 2001 wr360 and 2001 gg200 and 2007 ktm450sx and 2007 wr144 the brembos don't stop as good as the gg200 nissin units they did on the new 450sx but they became mushy

 

[2premo]

just my personnel experience, 2001 wr360 and 2001 gg200 and 2007 ktm450sx and 2007 wr144 the brembos don't stop as good as the gg200 nissin units they did on the new 450sx but they became mushy

I have and had both and can tell you there is no noticeable difference, besides a Nissin system is just a Brembo licenced copy

 

[jo360]

anybody converted the rear drum with a front twin mechanism, looking at the front and rear drums on the 430 they look very similar other than a lip running around the edge of the drum, this could be another option if your changing out the front anyway then you could fit the front onto the rear, i don't know if this would be worth while just wondered if someone had done this conversion.

 

[Motosportz]

Tossed an entire front end on my 86 WR400. Works way better and makes the bike far safer at speed IMHO.

 

[2premo]

Tossed an entire front end on my 86 WR400. Works way better and makes the bike far safer at speed IMHO.

is that a 95 front end??

 

[Motosportz]

99 WR250. 45mm zokes. Bolts right on with no issues.

 

[2premo]

99 WR250. 45mm zokes. Bolts right on with no issues.

funny thing is I was doing something similar, putting an 04 front on my 87 430
and a 93 rear wheel and brakes