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

**hillbilly 200x** · 08-20-2011, 09:21 PM

For now my SX is on 9 inch ES wheel,I will check but I'm pretty sure the 200x wheel will fit

Thanks for the comment,I will complete the setup tomorrow and test it.

the 200x rim will probably fit with your disk brakes now. I tryed my 200x rim on mine today didn't fit around the brake drum. lol

**Thorpe** · 08-20-2011, 10:41 PM

^^ 400ex 9" wheels will not fit over the drum either, without a spacer (fwiw)

**atc500x** · 08-20-2011, 10:50 PM

Originally Posted by hillbilly 200x

the 200x rim will probably fit with your disk brakes now. I tryed my 200x rim on mine today didn't fit around the brake drum. lol

83-85 200x wheel will not fit,bolt pattern is correct,but the diameter of inside the rim doesn't clear the diameter of the SX hub.I have 4 1/4 of offset clearance

**atc500x** · 08-20-2011, 10:59 PM

It work!!! Some picture of it.The SX wheel and the ES wheel fit perfect.Since I removed the park brake system I will remove the handle and cable,and install a XR decompressor lever just for the reverse system

**Thorpe** · 08-20-2011, 11:35 PM

SO SICK!! I love it!

**nstyle73** · 08-21-2011, 10:20 AM

Very Awesome. I'm still a little fuzzy on the details of the swap, but I think if I looked at the 250sx I'd be fully capable of replicating this sweet innovation. Thanks for sharing your work.

**atc500x** · 08-21-2011, 02:43 PM

Just back from first test,unbelievable,best brake I ever seen on a SX,3/4 inch play to the pedal and the wheel lock so easily....
The XR decomp lever used for the reverse is a direct fit,the cable fit right in the handle,no cable adjustement needed.No more problem with cable!!!!!
This week I will built the front!

**atc350xer** · 08-21-2011, 03:23 PM

Fantastic idea! I hate the way the reverse setup is on the SX/BR... I may just do the decomp lever mod by itself!

**dougspcs** · 08-21-2011, 05:10 PM

'ATC500x', love the work you've done..1st rate. But I'll think I leave my 250SX with it's stock drums..it's my heavy mud machine.

You should consider makeing conversion kits for some of these creative ideas you have. I know there are buyers for your stuff here!!

**big specht** · 10-17-2011, 01:06 PM

So have you got to ride it much more to see how it will hold up ??? it looks like there would be alot of leaverage on the disk adapter. I wounder if there would be alot of differance in the stoping power if it were a single piston caliper ??? I would like to keep my parking brake

**atc500x** · 10-17-2011, 06:46 PM

I have ride it a lot,normal riding and deep mud.Always perfect,powerfull in any condition.I have also fit a front disc brake too.
I'm pretty sure a single piston caliper will do the job,but for the difference of work,I would stay with the dual piston,but using a newer atv rear caliper with the park brake system is a good option if you want to keep the park brake.I have use the parts available in stock.

**big specht** · 10-17-2011, 10:23 PM

Do you have a better pic of the adapter I would like to really do this to our big reds

**Thorpe** · 10-19-2011, 06:37 PM

Thinking of building a kit? I have a ES and a SX patiently waiting....

**Jason125m** · 10-19-2011, 06:39 PM

I would buy these kits!!!!!!!!

**atc500x** · 10-19-2011, 09:22 PM

I don't know If I will built a kit and sell it.I kept all the pattern of parts I built.But for the moment,I just don't have time to do anything.Just find time to sleep is a job....to much work,too much idea!!!!!!

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

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