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Completely hidden rear brake reservior

14K views 32 replies 24 participants last post by  Warriorfrom818  
#1 ·
Hello fellow warriors.

This mod makes the rear brake reservior (called rbr from now on) completey invisible by relocating it under the seat.

What you need:

Set of hex wrenches
Pliars
rough file

Note: Your stock brake line from the rear master cylinder to the rbr must be the original length.

Steps:

1) Remove the right passenger footpeg bracket.

2) Remove the existing bracketing system you are using to attch the rbr to the bike (this could be the stock exhaust hanger or an aftermarket bracket such as the one from bubs).

3) Remove the rbr from the brake line and cap the brake line shut. The large hex screws you got when you removed the right passenger footpeg bracket are perfect for this.

4) Remove the seat and whatever crap you have put under the seat.

5) Notice that if you look at the rear right hand corner of the black plastic box that is sunk into the frame under the seat (holding the wiring bundle and other assorted goods) you will see a gap. You will eventually fish the rear brake line through that gap, but it has to be enlarged a bit. Use your file (or a dremel) and carefully remove material from the edge of the plastic box until you have enough room to get the rear brake line through. Make sure the edge of the box is not sharp...use the file to smooth it out.

6) Fish the rear brake line up into the under seat area through the gap you just enlarged.

7) Reattach the RBR and make sure you don't lose any fliud. If necessary, re-bleed the rear lines. (I didn't have to bleed them).

/emoticons/emotion-11.gif Whith some gentle persuasion, you can position the RBR under the seat in such a way that the seat closes normally.

That is it. You can still check the rear brake fliud level by holding the RBR upright and visually verifying the level and its completely out of sight.

I know you probably want pics...I will post them tommorow morning of the outside and under the seat.

I think this is a much cleaner look, to have the reservior entirely out of sight...and it costs NOTHING.

Keep the rubber side down.

Chris.
 
#30 · (Edited)
I would be suprised if it failed.
The only thing I can suggest, is to accurately mark the fluid level and keep a regular eye on it.

I used a new piece of "brake fluid friendly" hose and drilled a hole on the corner of the plastic box.
I made it a tight fit so no crap or water can get in.
I pushed the hose up through the hole, then fitted the (smaller Motocross) reservor, then pulled it down into position.
I routed the hose around the front of the swingarm pivot - down to the master cylinder.

I had NO rbr for years - it causes no running issues - but it's nice to be able to see the fluid in a reservoir - that's why I did this particular mod.
I didn't get any pics of the hose unfortunately.
It's a fiddly job.
I used an extra long drill bit to reach the bottom of the underseat box.

http://www.flickr.com/photos/johnny-jarv/sets/72157626157966909/