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Help to identify my Hayes Brakes

techman05

Chimp
Sep 1, 2012
1
0
These brakes are on my Giant 2001 XTC NRS bike. The rear brake started to loose a significant amount of pressure, and I believe that there is a leak. I would like to rebuild the brake and replace the o-rings but I am not sure which model it is.

Any help would be greatly appreciated!IMG_0234.jpgIMG_0233.jpgIMG_0232.jpg
 

trib

not worthy of a Rux.
Jun 22, 2009
1,168
95
i'd imagine a good bleed to get rid of any air in the system is all that's needed
 

kidwoo

Celebrating No-Pants Day
Aug 25, 2003
22,451
2,127
In my pants
hard to tell from the pics but I think it's a hayes comp


are there any words on them?


anything that looks like it might have said hayes comp at some point?
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
16,149
1,109
01776
looks like the same business as an hfx-9, maybe a mag. See if you can grab a few identifying parts and compare. I think the barrel is a certain size on the nines vs. mags, and the piston is a little different. See if you can figure out what system its similar too, then buy your parts from there.
 

Huck Banzai

Turbo Monkey
May 8, 2005
2,526
21
Transitory
Hayes MAG HFX Comp. Uses a cheaper Master cylinder (plastic) than the MAG HD.

G1 Caliper is same across the lines, so at least you didnt get the goofy G2's.
 
Last edited:

Ithnu

Monkey
Jul 16, 2007
965
0
Denver
Those are the same design as the calipers on a very old set of Mags I have. Mine don't say Comp on the MC and the calipers are solid black.
 

scottbrixie

Chimp
Dec 13, 2011
15
0
The calipers look like old MAGs. My buddy has a set and had the same problem a couple of days ago in Downieville. Had them bled and they work fine now...