250SX rear brake upgrade,disc brake!!!!

[Stonewall]

Could you post up some pics of your front disc setup?

[big specht]

I agree with atc500x...the cost gets kinda high, but...

I think we paid around $120 for caliper, disc, handle lever and reservoir and line off of any random atv we could find at the salvage yard.

The other parts we used were laying around the shop:

approx 4" dia pipe, 1/4" thick used to weld to the axle/hub that the disc was welded too
random angle iron for custom brackets

So maybe $150-200 parts and about 3-4 hours in labor, but most of that labor was installing, so labor hours wouldn't be high.

Thing is, I doubt any of us what to go back the salvage yard anytime soon, as its not close and it's getting cold here in MN!

Maybe next spring! Or I can put up some detailed photos of the build (post installation of course).

Yea we need some pics

[atc500x]

Yes I will took some picture of the front setup

Don't forget you need an old backing plate that need some work on the milling to fit the bearing and cler the disc.
With my experience in this built,if you don't have access to a machine shop with a lathe and milling,to built good parts,the cost of labor will be very high.

Locally the cost of used parts are expensive.But it's approx the same as ordering a part on ebay + shipping
My hub with the disc cost me 75$ locally,the price was 45 on ebay + shipping,approx 25$.

Will check for more picture and will post.

[sweetip2000]

Looks like you have some customers in line already. LoL.
Nice work.

[schneed]

Yea we need some pics

Last night I put new wheels on my BR and had the opportunity to snap a few pics of my rear disc brake set-up.

The first pic shows the wielded tube (the ID of the tube is slightly great than the OD of the axle housing). It is about 3" long.


First we wielded the tube to the hub and then wielded the disc to the tube as straight as possible. You can also see we made custom brackets to mount the caliper to the axle housing using angle iron and a lot of grinding, :-)


Here is the bracket for the caliper on the front side of the axle housing.


Another shot of the tube, disc and caliper.

[JasonB]

nice upgrade, i freaking HATEd my old drum brakes on my 85 and my girlfriends new 87 hasnt been checked out yet. drums are ancient technology :*(

[big specht]

Ok I'm digging this old thread up. Me and my brother and kizer and big daddy tri-z where out riding big reds sunday and we were playing in the mud and none of bikes brakes worked very good after that so we need to dig this thread back up and get this figured out. Ok I was thinking for the people the like to use there hand rear brake and foot brake, do they make a brake system that can have two masters hooked to one caliper?? Like have the hand brake master cylinder line piggy backed on top of the foot brake master line??? And is there any calipers that work better than others ????

[atc300r]

This is a good conversion.But I like the drum brake on my 250r.Id like to figure out how to make it a hydraulic drum setup. Iv checked some brake systems on a couple utility quads it look posible. I read an article in Dirt Wheels years ago where the guys put disc brakes on a trx 2 wheeldrive.They used all oem honda parts.

[the great gazoo]

I'm pretty sure there's a rear disc brake conversion kit for the TRX300 util quad available,which would work on the ES or SX but it's really expensive................

[big specht]

Ok do you have a link to the REAR disc brake conversion?? I've been all over the web and can find it all I can find is the front kit

[atc500x]

pretty sure they exist only for the front.The front are expensive,I'm doing a front kit setup on my trx300 now with a trx250r setup,easy to do....

[threewheelin-feelin]

ever get any pics of the front setup??

[Dirtcrasher]

I didn't read all this but front is cake if you simply slide in 200X forks.

You can use SX forks with a creative bracket though....

[atc500x]

It's exaclty what I did,250sx stock clam and 200x shock