TRX250r.org

Author Topic: Alternative Rear brake Caliper??  (Read 33914 times)

Offline Vroomy

Alternative Rear brake Caliper??
« on: February 13, 2014, 12:02:16 AM »
any know if any other rear brake caliper will work on a TRX250R? mine needs new pistons which i cant get and cant seem to get a deal on another good working one at the moment.

Offline Powderillusions

Alternative Rear brake Caliper??
« Reply #1 on: February 13, 2014, 12:08:18 AM »
I put a YZ125 caliper on the rear of my old 1986 atc250r --no brake block off needed either ;)

Offline fearlessfred

Alternative Rear brake Caliper??
« Reply #2 on: February 13, 2014, 12:35:13 AM »
cannondales may fit ,I will check out and get back with you

Online F-Red

Alternative Rear brake Caliper??
« Reply #3 on: February 13, 2014, 06:56:42 AM »
Yamadog YZ250.
Want To See My Wieners?

Offline dirtyd

Alternative Rear brake Caliper??
« Reply #4 on: February 13, 2014, 09:09:05 AM »
I'm in the same boat as you. But I only need the one piston, the one without the shaft for parking break. I wonder if a piston from another bike would work. I got to thinking after seeing this http://www.ebay.com/itm/HONDA-TRX250R-ATC250R-TRX-ATC-250R-REAR-BRAKE-CALIPER-PISTON-OIL-SEALS-KIT-/400656017567?pt=Motors_ATV_Parts_Accessories&hash=item5d48f5a89f&vxp=mtr#ht_44wt_651 but not to long ago he had these listed at $49 and in his discription it used to say that the shaft would need to be ground down some. So I thought maybe they are from a different bike. I found that the Yamaha YFZ you would have to order the set (2pistons 4 seals) like ebay shows. I also wonder if 450R front pistons would work for the one I need. It calls out that the piston as being 25x27 and when measuring mine it like 25.34x26. Anyone have any insite on this?
87 trx250r- ESR 310 (trx9 porting) trx5 pipe, 38mm A/S, +2 a-arms. works triple rates.
86 trx250r- basically stock (SOLD)
05 Predator 500- some bolt on stuff
87 Tecate4- new project

Offline Powderillusions

Alternative Rear brake Caliper??
« Reply #5 on: February 13, 2014, 09:21:35 AM »
here is a walk around of my old ATC--I show the yz125 caliper in the video (in the video I screwed up and said yfz lol)
http://youtu.be/8bazHwUZJAo

and I think this is the only picture of it I have

Offline matt250r21

Alternative Rear brake Caliper??
« Reply #6 on: February 13, 2014, 09:45:59 AM »
Front TRX250R brake pistons will work in the rear TRX250R caliper. I've been running them for a few years without issues. One catch though, I had to TIG plug weld the parking brake hole in the rear caliper to make it work.

Offline etccb

Alternative Rear brake Caliper??
« Reply #7 on: February 13, 2014, 11:50:26 AM »
Some day we may need a billet plate/ adapt made up for the use of a 450r rear caliper.
If it is not too hard I bet someone like esr may be able to address this at some point.

Online Tbone07

Alternative Rear brake Caliper??
« Reply #8 on: February 13, 2014, 12:19:02 PM »
Look no further my friend

450R Rear Caliper - Any Year
450R Brake Stay - Any Year
450R Disc Hub - Any Year
And 450R brake disc of course
2 washers to space out caliper (see picture)
OEM 250R locknut will work


I think the whole operation cost me $125 at the most
LED Performance 350 Sphynx - XC Machine
Laeger's-Roll-GThunder-HLS-PEP-HiPer-GBC

RIP Laz

Offline etccb

Alternative Rear brake Caliper??
« Reply #9 on: February 13, 2014, 12:36:40 PM »
Sweet T.
It would be nice if we had the specs/ability to still use the 250r disc and hub with that caliper...

Offline rk88r

Alternative Rear brake Caliper??
« Reply #10 on: February 13, 2014, 12:49:39 PM »
crf 450 caliper works, you just have to oblong one of the holes in the brake stay.
\'99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
\'88 265 pv peps
One other \'88

Offline rk88r

Alternative Rear brake Caliper??
« Reply #11 on: February 13, 2014, 01:08:00 PM »
Oblonged hole for crf caliper.
\'99 Laeger narrow, cr link, +3+1 protrax, Peps, with a LED 363
\'88 265 pv peps
One other \'88

Offline Vroomy

Alternative Rear brake Caliper??
« Reply #12 on: February 13, 2014, 03:56:12 PM »
thanks guys, given me some ideas to think about. Tbone your solution seems the go but only problem is i have a LSR antifade hub so not sure how thats gonna work?
Dirtyd do not buy that kit!! i bought one and the pistons are too long which leaves no room for the pads and disc to fit, im having an argument through ebay as we speak. The guy wont give me a refund until i send them back, well im in australia and already spent $30 to get them here and another $30+ to send back for a $50 refund! man i hate ebay deals

Offline mennis1971

Alternative Rear brake Caliper??
« Reply #13 on: February 13, 2014, 05:52:05 PM »
Vroomy that is exactly the situation I had with Bear81(Hardcore atv I believe) on ebay. Item wasn't as described and it would have cost me more money to send it back just to end up losing money by sending it back. Ebay sucks sometimes.

Hey Tbone, will that caliper work with an antifade?

Online Tbone07

Alternative Rear brake Caliper??
« Reply #14 on: February 13, 2014, 05:57:02 PM »
Quote from: mennis1971;25448
Vroomy that is exactly the situation I had with Bear81(Hardcore atv I believe) on ebay. Item wasn't as described and it would have cost me more money to send it back just to end up losing money by sending it back. Ebay sucks sometimes.

Hey Tbone, will that caliper work with an antifade?

I imagine it would work with a 450R antifade if it works with an OEM 450R brake hub. The 450R hub is a 3-bolt design, 250R is 4
LED Performance 350 Sphynx - XC Machine
Laeger's-Roll-GThunder-HLS-PEP-HiPer-GBC

RIP Laz