Author Topic: Brake Pad piston insets/pad??? (Read 3704 times)

Higgy87trx425 · « **on:** January 12, 2014, 06:15:10 PM »

Ok guys so I'm searching for these brake caliper piston pads/inserts. They sit in the recessed area on the piston and act as a pad between the brake pad and the piston. They keep the heat transfer down to a minimum. I'm gonna go get some pic!!!
Thanks Higgy

Higgy87trx425 · « **Reply #1 on:** January 12, 2014, 06:37:49 PM »

Ok so heres a photo of where the piston pads/inserts go. I'm looking to buy some of these pads/inserts, my old ones were junk. Any help locating these would be great!!!

Thanks Higgy

Hawaiiysr · « **Reply #2 on:** January 12, 2014, 10:19:08 PM »

They are made of cork or something like that correct? Good luck finding them. I believe that stuff is disc'd. Our calipers are made by nissin. Maybe parts from another caliper will work?

Higgy87trx425 · « **Reply #3 on:** January 12, 2014, 10:55:41 PM »

Quote from: Hawaiiysr;22124

They are made of cork or something like that correct? Good luck finding them. I believe that stuff is disc'd. Our calipers are made by nissin. Maybe parts from another caliper will work?

Yeah they're some kinda fiber! They maybe discontinued, however I don't even see them on any of the schematics for the Honda TRX250r so maybe they're still around??? I wanna see if some from another set of calipers will work?
Thanks Higgy

matt250r21 · « **Reply #4 on:** January 13, 2014, 09:31:36 AM »

Higgy, those fiber discs only came with the caliper pistons, the rear pistons are no longer made. If you need new fiber discs you would have to buy front TRX250R caliper pistons and pry them out. I know for sure I have one used fiber disc laying around and could find another if you really need them.

rk88r · « **Reply #5 on:** January 13, 2014, 01:30:44 PM »

I've always used a nickel, I never thought about heat transfer though.

havinnoj · « **Reply #6 on:** January 13, 2014, 02:29:43 PM »

Quote from: matt250r21;22146

Higgy, those fiber discs only came with the caliper pistons, the rear pistons are no longer made. If you need new fiber discs you would have to buy front TRX250R caliper pistons and pry them out. I know for sure I have one used fiber disc laying around and could find another if you really need them.

Yeah this. Never knew they came apart though.

C-Leigh Racing · « **Reply #7 on:** January 13, 2014, 02:47:15 PM »

That fiber stuff reminds you of the stuff use to make a clipboard out of. It might be compressed asbestous, so you know aint no way we'll find that anymore.
Neil

Higgy87trx425 · « **Reply #8 on:** January 14, 2014, 01:23:57 AM »

Quote from: C-Leigh Racing;22165

That fiber stuff reminds you of the stuff use to make a clipboard out of. It might be compressed asbestous, so you know aint no way we'll find that anymore.
Neil

Ok, so I guess my question is this. DO I REALLY NEED THESE?? I guess I could use a nickel, cut up a clipboard or possibly find some used ones? Problem is that I need 6 of them. Its looking like I'm gonna go without!! I just wonder if the heat transfer is an issue? I read somewhere that it created problems and the rear brakes were failing on some people!
Thanks Higgy

bnau267 · « **Reply #9 on:** January 14, 2014, 06:09:49 AM »

What do the current bikes use on their piston ends? I honestly have never paid attention. Thinkingout loud, maybe there's a liquid resin solution like an epoxy of sorts. Brew your own resins have come a long way in the past 40 years. Just imagine some liquid mixture that cures semi soft yet has heat transfer charateristics. Household kitchens are full of these types of materials. Or maybe cometic has a solution. One would think that there is enough demand for these.....my guess is that they were designed to act as both a heat transfer and cushion.

05450r · « **Reply #10 on:** January 14, 2014, 11:03:34 AM »

Im sure it does have some heat transfer benifets, but honestly, will it even be enough to be noticable? I believe 400ex's still used them, obviously different piston size though. I can check my 450r and see what it has, it was all original when I got it, and I know the pads are original, and shot..lol.. Im sure they are also there for noise control as well, keeping the squeezing pads sound down.

Higgy87trx425 · « **Reply #11 on:** January 14, 2014, 05:45:18 PM »

Quote from: 05450r;22286

Im sure it does have some heat transfer benifets, but honestly, will it even be enough to be noticable? I believe 400ex's still used them, obviously different piston size though. I can check my 450r and see what it has, it was all original when I got it, and I know the pads are original, and shot..lol.. Im sure they are also there for noise control as well, keeping the squeezing pads sound down.

Quote from: bnau267;22268

What do the current bikes use on their piston ends? I honestly have never paid attention. Thinkingout loud, maybe there's a liquid resin solution like an epoxy of sorts. Brew your own resins have come a long way in the past 40 years. Just imagine some liquid mixture that cures semi soft yet has heat transfer charateristics. Household kitchens are full of these types of materials. Or maybe cometic has a solution. One would think that there is enough demand for these.....my guess is that they were designed to act as both a heat transfer and cushion.

I think that both of these maybe good ideas. If I could just buy a 450r part that would work and be any easy solution!! Or possibly another company makes something for this application. I think that your correct, I'm sure it does act as a cushion and keeps the heat transfer down. Either way I wanna put something in there!!
Thanks Higgy