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Author Topic: Brake piston fiber insert  (Read 1946 times)

Offline broken1

Re: Brake piston fiber insert
« Reply #15 on: January 04, 2020, 01:53:14 PM »
These inserts could be easily made using a hole saw without a pilot bit in a drill press. Find a sheet of phenolic or a fiber material similar to the oem discs of the same thickness & make a lifetime supply.
overkill is an often underrated achievement

Offline croat1

Re: Brake piston fiber insert
« Reply #16 on: January 31, 2020, 08:51:09 AM »
Hey Joe I bought a couple sets of  those a few years ago on ebay. The seller was   cyclesrus-greatparts   and has a shop down by chippewa lake, CyclesRus if you want to go direct. Maybe he can still get some.


Bill

Bill, I went to the shop.... nothing available

Joe

Offline Langbolt

Re: Brake piston fiber insert
« Reply #17 on: January 31, 2020, 01:57:17 PM »
The 2 Piston rebuild kits that were available on AMAZON.....are no longer available..... :(

Maybe there are pistons from the CFR nissin calipers that will work ???

:)

Offline 4WHLr

Re: Brake piston fiber insert
« Reply #18 on: January 31, 2020, 06:17:37 PM »
Well, That's a couple of bummers there.

Has anybody ever measured how deep the front pistons are compared to the rear, since they use the same diameter and part numbers for seals?
 I may do some digging this weekend.

Ive seen them with the e-brake pin/port plugged and have two of the non e-brake pistons in them too  :o which is what made me wonder about the front pistons.

On a side note, I have at least one used  fiber disc if anybody needs or wants it, you can have it.


1986 TRX275R PC2000

Offline broken1

Re: Brake piston fiber insert
« Reply #19 on: January 31, 2020, 09:36:02 PM »
Well, That's a couple of bummers there.

Has anybody ever measured how deep the front pistons are compared to the rear, since they use the same diameter and part numbers for seals?
 I may do some digging this weekend.

Ive seen them with the e-brake pin/port plugged and have two of the non e-brake pistons in them too  :o which is what made me wonder about the front pistons.

On a side note, I have at least one used  fiber disc if anybody needs or wants it, you can have it.




Would you mind measuring the diameter & thickness of that fiber disc & posting it here? Or let me borrow it so I can make some copies? Thank you
« Last Edit: January 31, 2020, 09:38:28 PM by broken1 »
overkill is an often underrated achievement

Offline 4WHLr

Re: Brake piston fiber insert
« Reply #20 on: February 01, 2020, 12:08:17 AM »
It is right around 3mm thick and just under 22mm ( 21.95 - 22mm ) in diameter
to fit in the piston which is a 22mm by 2mm deep recess
1986 TRX275R PC2000

Offline broken1

Re: Brake piston fiber insert
« Reply #21 on: February 01, 2020, 12:43:49 PM »
Perfect thank you 4WHLr.
overkill is an often underrated achievement

 

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