[mj4trax]

The piston size is the only thing that will affect the brake actuation/feel. .. you are correct, but keep in mind that the original 250R reservoir is bigger than the db reservoirs for a reason.

As your pads wear down, more fluid has to be in the calipers to push the pistons out further. With stock equipment, if you start with a full reservoir on new pads, you will still be fine when the pads wear out.

With the smaller dirtbike reservoirs, you may need to add fluid at some interval, and then when you put new pads on and compress the caliper pistons, you may overflow the smaller reservoir.

If you're cool with watching your fluid levels closely, the setup you've identified should work very well for you.

 

[mj4trax]

If the fluid does get low I don't plan to add, that is a bad idea on a closed loop system. If you add more then install new pads the pads will rub on the rotors.

Same thing happens with cars...

I get what ya mean though!!

If you need to add to keep the cylinder from getting air in the lines, you need to do it... very likely not a problem, but something I would keep an eye on. I would just say that if you do add fluid, you need to drain it when installing new pads, that's all. .. probably not a big deal either way.

I agree that the dirtbike master cylinders are lighter and look cooler than the ones made for quads. .. if you go ahead, snap a couple pics and throw them on here.

 

[mj4trax]

If the fluid does get low I don't plan to add, that is a bad idea on a closed loop system. If you add more then install new pads the pads will rub on the rotors.

Same thing happens with cars...

I get what ya mean though!!

If you need to add to keep the cylinder from getting air in the lines, you need to do it... very likely not a problem, but something I would keep an eye on. I would just say that if you do add fluid, you need to drain it when installing new pads, that's all. .. probably not a big deal either way.

I agree that the dirtbike master cylinders are lighter and look cooler than the ones made for quads. .. if you go ahead, snap a couple pics and throw them on here.