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View Full Version : Predator Brake Drag Fix



ZSK
02-08-2010, 07:06 PM
The Predators suffer from the infamous front brake drag. On any vehicle, atv, dirtbike etc etc you have some drag, but with the Predator it's much much more. On a longer wheelie the front wheels will actually stop turning. It's either a flaw in the master cylinder design (manufactured by Wilwood) not allowing enough pressure to be released or it's a fault of the caliper/piston design. I chose to knock out both at one time.

You can see that I inserted a spring inbetween the brake pads in order to compress the caliper slightly. Looks like my brake pads are a little rusty, but they are original from '03

http://img.photobucket.com/albums/v396/zk91/DSCN0536.jpg

http://img.photobucket.com/albums/v396/zk91/DSCN0534.jpg

The Predator uses a two part caliper, this is fortunate because I don't have an allen wrench large enough to remove the slide pins. Remove the two hex head bolts, not the two with green paint as pictured.

http://img.photobucket.com/albums/v396/zk91/DSCN0538.jpg

With the caliper in two halves, insert the springs inbetween the pads on the pins, repeat top and bottom. I pulled the pins and removed any buildup at this time. Tighten up the two bolts and you're done.

http://img.photobucket.com/albums/v396/zk91/DSCN0539.jpg

Here's the dimensions on the spring(s) I used.

http://img.photobucket.com/albums/v396/zk91/SpringDetail.jpg

I replaced the master cylinder with a Banshee unit, just because I had an extra at the house. In doing so the throttle housing had to be replaced also for fitment reasons. Here you can see both and the ODI Lock on grips which full on rock.

http://img.photobucket.com/albums/v396/zk91/DSCN0537.jpg

And one of the Predator for good measure.

http://img.photobucket.com/albums/v396/zk91/DSCN0508r.jpg

birdman7389
02-09-2010, 12:31 PM
Nice work. Did it make a difference?


That Yammy emblem staring me in the face would make me cringe. I'd have to grind it off or get one of those billet covers :D

Was the shee cylinder a bolt on? The brake line fit with no issues?


Edit: I just noticed my Outlaw doing it too :o
WTF Polaris!

ZSK
02-09-2010, 01:12 PM
It helps quite a bit. The upper brake line is at a 90° angle, so I turned it to run under the bars and then down. With the Polaris MC the fitting it parrallel to the bars, Yamaha or Honda units they are perpendicular.

katch26
02-09-2010, 01:22 PM
yeah both those mods are pretty common on the preds but its always nice to see it done again in detail for newer members.....that is one clean 03!