TRX250R.ORG
Workshop => Suspension and Chassis => Topic started by: Vroomy on February 13, 2014, 12:02:16 AM
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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.
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I put a YZ125 caliper on the rear of my old 1986 atc250r --no brake block off needed either ;)
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cannondales may fit ,I will check out and get back with you
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Yamadog YZ250.
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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?
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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
(http://i153.photobucket.com/albums/s217/toyotatruckin_photos/P1050509.jpg) (http://s153.photobucket.com/user/toyotatruckin_photos/media/P1050509.jpg.html)
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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.
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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.
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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
(http://i1060.photobucket.com/albums/t457/tbone0785/TRX250R/P1050130_zpsd2e78c5e.jpg)
I think the whole operation cost me $125 at the most
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Sweet T.
It would be nice if we had the specs/ability to still use the 250r disc and hub with that caliper...
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crf 450 caliper works, you just have to oblong one of the holes in the brake stay.
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Oblonged hole for crf caliper.
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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
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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?
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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
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The 450R rear caliper is only single piston though? I think I saw a post where Andy Maultech used a CRF front dual piston caliper on the rear of a 250R and it looked sweet!
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^^^^^ YES!!! Andy does a slight bit of machining on Crf front calipers to use on the rear. And if Im not mistaking it helps slightly with clearance issues for hitting caliper on the exhaust. Especially in hybrids with big canisters
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the RIS designs rear caliper is very cool, but i cant seem to find it anymore.
john
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I just had a look at the Crf450R & Crf250R calipers online and they're the same Part# .....and they're only $146!!!
http://www.cyclepartsnation.com/oemparts/a/hon/5053fd8ff870021c54bea979/front-brake-caliper
So if Andy would make a KIT to adapt them to the rear of our 250R's it'd be Sweet! :)
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No kit required just a round file.
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Oblonged hole for crf caliper.
we used to do this with a yz400 cailper.
john
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so what year crf caliper are we talking about? or are they all the same
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so what year crf caliper are we talking about? or are they all the same
2002-2012 all the same
http://www.partzilla.com/parts/detail/honda/HP-45150-MEN-006.html
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so i bought a brand new front crf caliper and unless ive got it totally wrong theres more than oblonging the brake stay holes, it looks miles off. what am i missing?
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Any benefit of a 450R combo over a well working OEM setup?
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2002-2012 all the same
http://www.partzilla.com/parts/detail/honda/HP-45150-MEN-006.html
Do you have the caliper bracket also?
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so i bought a brand new front crf caliper and unless ive got it totally wrong theres more than oblonging the brake stay holes, it looks miles off. what am i missing?
Do you have the caliper bracket also?
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Any benefit of a 450R combo over a well working OEM setup?
Availability and a little more clearance from the silencer.
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I only have the 250r bracket, which one works with the CRF caliper?
Sent from my iPhone using Tapatalk
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http://www.servicehonda.com/parts/lookup#/Honda/CRF450R_A%2f%2fB_(05)_MOTORCYCLE%2c_JPN%2c_VIN%23_JH2PE053-5M350001_TO_JH2PE053-5M399999/FRONT_BRAKE_CALIPER/CRF450R-05-JPN-A%2f%2fB/2Y14MEB2MEB4F0700AD
#17
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Here's a pic.
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thanks for this info, just looking at the microfiche it looks like 17 is the one i have but 13 isnt listed in the part list which looks to be the right one??
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Vroomy....What Year Caliper Assembly did you buy ? Was it for a CRF450R ? Looks like Part#17 that rk88r specified is on the Crf450 from 04-12 ?
#13 in the diagram = Part# 45190-KZ4-J21 which is for a 02-03 Crf450r
To get #17 you needed a 2004-2012 Crf450R front caliper.....:(
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Vroomy I'm not positive on the year that's on mine. I know it's a crf though.
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i have a 2010 caliper, bit confused now. Went to honda shop and they dont have a listing for the different bracket than what i have so either way i cant get one in Australia? any you guys feel like posting me one if i send you some money?? haha
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Here is what Andy from Maul Tech did, contact him for more details. "The rear caliper must be machined to center up the pads and we used an aftermarket aluminum 250R rear caliper bracket."
(http://i101.photobucket.com/albums/m79/number_52/Roll%20Desing%20350%20PV/photo15_zpsfff99f5a.jpg) (http://s101.photobucket.com/user/number_52/media/Roll%20Desing%20350%20PV/photo15_zpsfff99f5a.jpg.html)
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Vroomy, Just give the Honda shop this part# 45190-MEN-006 and they can order the correct one for you.....If they can't....I'd try a different Honda shop. :)
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Thanks man, got it ordered. I'll get that money to you today also sorry for the delay
Sent from my iPhone using Tapatalk
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Am I missing something here I tried this and doesn't even come close to working. I ordered an 05 crf450 front caliper. If the mounting hole at the rear of the brake stay is lined up the front falls short of the brake stay by 1.5 inches? Plus it seems the caliper bracket is to thick to go between the brake stay and rotor.
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I just replied to a PM with my yz125 caliper info figure Ill post it here to since I dug it up from a post I made on 3 wheeler world in 2012 (different username)
Cost was 29$ off ebay for a 1999 yz125 front brake caliper with good pads used--caliper did not need any shims at all, just had to slot the bracket holes and remove some meat from the bracket under the caliper to give the rubber boot on the caliper a bit more clearance--the caliper going from the front of a yz to the rear of the atc is still stopping in the same direction-(yz front left flip the caliper and it goes on the right rear same direction stopping so your golden) there is no parking brake on the yz so no need for a block-off(at least I always remove the parking brakes from my quads) they mount up clean and there is a very little amount of dremal work needed on the 250r brake stay if I remember right I split the difference in the front and rear holes on the brake stay maybe 1/8" per hole of meat removed so nothing major at all and yz was a duel piston caliper
here is a picture of the 125 caliper on the atv---the ATC was a 1986 250r
(http://i153.photobucket.com/albums/s217/toyotatruckin_photos/atcyz125caliper_zps9e4cf815.jpg) (http://s153.photobucket.com/user/toyotatruckin_photos/media/atcyz125caliper_zps9e4cf815.jpg.html)
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Well I ended up making the crf450 front caliper work but it ain't worth it. Do not buy a 4-12 year. It will not fit. I ended up welding some metal on the OEM brake stay to make it work.
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trx250scar - What Part Number did you use ? Or what one was on the box ? It should have worked.....the Part# will tell us what bike it's from. Thanks :)
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trx250scar - What Part Number did you use ? Or what one was on the box ? It should have worked.....the Part# will tell us what bike it's from. Thanks :)
Not sure of part Number I ordered off of Ebay used.however I compared several pics of calipers and it seems to be same from 4-12.
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The calipers may be the same....does your mounting bracket on the caliper look like #13 or #17 on the parts fiche ? That's what Vroomy was having a problem with....the wrong bracket
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crf 450 caliper works, you just have to oblong one of the holes in the brake stay.
was that the only modification or did you have to do anything to the caliper itself
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crf 450 caliper works, you just have to oblong one of the holes in the brake stay.
also I forgot, is that crf450 caliper off the front and what year
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It was on the bike when I got it. I took it off an remounted it with fresh pads, rotor, and rotor guard only.
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well i ordered the part #45190-men-006 and is exactly what i already have! so caliper still not even close to fitting, dont understand. now im invested over $200 into this and looks to be useless
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I ended up welding material onto my brake stay so I could use the crf caliper. Also had to grind on the caliper t Oil get the spacing on the rotor correct. I Also wish I hadn't went with this alternative caliper. I think I will try the yz caliper.
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well i ordered the part #45190-men-006 and is exactly what i already have! so caliper still not even close to fitting, dont understand. now im invested over $200 into this and looks to be useless
Vroomy can you post some pics of the bracket ? What is the Hole spacing Center to Center ? Is it the Bracket that wont bolt up to the caliper mount ? How far is it off ? We'll figure something out for ya! Hate to hear of a brother out $200!!!
:)
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(http://img.tapatalk.com/d/14/05/17/bysyhujy.jpg)
Sent from my iPhone using Tapatalk
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The Caliper Bracket hole spacing looks a lot closer than this one from RK88R :(
[ATTACH=CONFIG]4974[/ATTACH]
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I'm betting you need Item #13 on this fische - It's from a 2004 Crf450R - Do you know anyone with a 2004 Crf450R ?
http://www.cyclepartsnation.com/oemparts/a/hon/5053f88af870021c54be8a80/front-brake-caliper
Can you return the one you bought and exchange it for Part# 45190-KZ4-J21
If you enter the Part# here http://www.cyclepartsnation.com/oemparts/partsearch/honda then select the "Where Used" button it will give you all the models that use that bracket.....hopefully that will help.
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http://www.servicehonda.com/parts/lookup#/Honda/CRF450R_A%2f%2fB_(05)_MOTORCYCLE%2c_JPN%2c_VIN%23_JH2PE053-5M350001_TO_JH2PE053-5M399999/FRONT_BRAKE_CALIPER/CRF450R-05-JPN-A%2f%2fB/2Y14MEB2MEB4F0700AD
#17
Turns out VROOMY already had Part#17.....he needed Part#13.....the one with the greater mounting bolt spacing :(
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Well I pulled the trigger and ordered a '02 Cr250R Front Caliper & Bracket - (45190-KZ4-J21 bracket part#) So I will see for myself what all is involved to adapt this to our bikes. I'll be sure to take lots of pics and do a write up. The Calipers themselves are available on a wide assortment of recent HONDA bikes.....so availability is easy. What I would like to do is design & Fabricate a mounting bracket that will adapt this caliper to the 250R support plate.....Stay tuned!! :)
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I would like you to design & Fabricate a mounting bracket also
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Isn't that what the dream brake stay is for? Allow use of the crf caliper?
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looking at this, there is an adapter plate, showing there should be another mounting hole up closer near the bleeder valve (beige circled area), compared to the mounting holes referenced by the red circles. hopefully the other caliper bracket works for you! let us know!
(http://i1251.photobucket.com/albums/hh548/JesseA421/brakebrkt1.jpg)
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NPM is making a billet brake stay for me. It will run the trx450 caliper. He is in the design phase but I already committed to buy 2. I sent him my r brake stay and he has the 450 caliper so he's on his way. I'll keep you all posted as he works on this.
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I used a trx450 Blingstar rotor guard and caliper when I did my rear brake swap. Worked very good. No Fab. Just bolt up. Did require a washer between the rotor guard and caliper for proper alignment.
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looking at this, there is an adapter plate, showing there should be another mounting hole up closer near the bleeder valve (beige circled area), compared to the mounting holes referenced by the red circles. hopefully the other caliper bracket works for you! let us know!
(http://i1251.photobucket.com/albums/hh548/JesseA421/brakebrkt1.jpg)
When used this caliper on y sons r we ended using a stock steel stay and welded flat metal onto the OEM stay so it was bigger then drilled holes were they needed to be. Really was a hassle. We were riding next day and the r caliper was toast so had to make it work. Wouldn't go that route again.
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Ok, the Caliper Arrived today....this is what it looks like bolted up to our stock 250R caliper mount. As you can see....the front hole is off just a bit....now I want to mock it up on an R to see where the best place is to adjust to make the best fit. Stay tuned.....
Part# 45150-KZ4-J31 - 2001-2003 CR125R, CR250R Front Caliper & Bracket
Part# 45190-KZ4-J21 - Bracket "ONLY" is used on front brakes from 2000 to 2014 on XR650, CR125, CR250R, CRF150F, CRF230F
Part# 45150-KZ4-J21 - Bracket & Caliper is used on front brakes from 2000 to 2014 on XR650, CR125, CR250R, CRF150F, CRF230F
So What I plan to Fabricate is a Support for the 45190-KZ4-J21 Bracket to make this a BOLT ON Caliper assembly.
I Also plan to Fabricate a Bracket for VROOMY so he & others that have the Part# 45150-MEN-006 Bracket from the CR450R, will be able to BOLT ON that assembly.
:)
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That's about how far mine was off before oblonging the hole. For clarity you should give us the year and part numbers again.
Sweet!
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Or look here:
http://www.partzilla.com/parts/detail/honda/HP-45150-KZ4-J21.html
:)
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Ok Who wants to cut them ?
Should we use Steel or Aluminum ?
:)
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OK...So it's mounted up....had to elongate the holes to accept the smaller center to center bolt pattern.....and also had to remove material from the bracket itself to allow the caliper to align correctly.....So my plan now is to take this piece....design a replica and have it CNC'd out of billet Aluminum....with the STOCK Honda bolt spacing.....this way it will make this Caliper a BOLT ON! And will be a perfect replacement for our stock 250R Caliper.....Keepin' the 250R alive! :)
(http://forums.trx250r.org/vbulletin_imports/150_3220_2017-04-18_6415.jpg)
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Here's a clear pic showing how much material was removed.
(http://forums.trx250r.org/vbulletin_imports/150_3227_2017-04-18_226.jpg)
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Bracket Complete
(http://forums.trx250r.org/vbulletin_imports/150_4861_2017-04-18_7402.jpg)
Just need to make the spacer to move the rotor out from the Swingarm.....or machine the CRF Bracket to get it to fit.
I'm thinking the SPACER would be easier and I could weld it to the bracket to make it one piece.
Stay tuned
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That is awesome! Thanks for doing this. When the final product is ready, PM me with a price please.
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good progress....
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Bracket Complete
(http://forums.trx250r.org/vbulletin_imports/150_3227_2017-04-18_2833.jpg)
Just need to make the spacer to move the rotor out from the Swingarm.....or machine the CRF Bracket to get it to fit.
I'm thinking the SPACER would be easier and I could weld it to the bracket to make it one piece.
Stay tuned
I ordered the partzilla part in the post above, HP-45150-KZ4-J21, but I'm running into an issue with the thickness of the "bracket sub assembly" part where it still rubs against the rotor's mount bolts after filing down the bracket's mount points.
Your bracket above looks at least a quarter inch thinner than mine, with tons of daylight between the rotor bolts and the new bracket. Did you file down the face of the rotor side of that bracket for clearance?
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Yes! Look at the pic and compare it to your bracket.....where the "Bracket Sub Assembly" touches the mounting bracket...that surface of the "Bracket Sub Assembly" has to be machined down to enable the caliper to align with the rotor properly.
Looking at the pic for direction....I filed down the LEFT side of the bracket.....not the right (rotor side)
Let me know if you need a better Pic
:)
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Yes! Look at the pic and compare it to your bracket.....where the "Bracket Sub Assembly" touches the mounting bracket...that surface of the "Bracket Sub Assembly" has to be machined down to enable the caliper to align with the rotor properly.
Looking at the pic for direction....I filed down the LEFT side of the bracket.....not the right (rotor side)
Let me know if you need a better Pic
:)
It's not a big deal, but it is weird. I filed down the left side some, but only until it looked like the rotor was centered on the rotor notch of the caliper. The right(rotor) side is on the same plane as the left-most side of the rotor notch, and my rotor bolts stick out a good bit. This basically means that I have to file down the right(rotor) side of the bracket.
I don't see any way that all the material you removed was from the left side, and not from the right. This is all mostly for clarity for others, as I'm clunking through it slowly myself, but see the pic below to see what I'm talking about.
(http://forums.trx250r.org/vbulletin_imports/107_5105_2017-04-18_7281.jpg)
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Yes it is weird as I see your Brake rotor hub is closer to the Bearing carrier than mine....Do you have single row bearings in a Double row carrier ? I'll get a measurement from the Carrier to the rotor surface for comparison. :)
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Everything on the rear but the swinger is straight from LSR last year. I had my stock brake caliper on there for a while, so it can't be too far off.
Really, the moral of the story is go slow and test fit often!
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Langbolt anything yet with these conversion brackets?
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I've been meaning to Take the bracket and design it up in 3-D Autocad and send the file to Jeremy Nelson - Nelson Precision Manufacturing & see if he would be interested in making the brackets that would bolt up to the 250R standard Brake support and allow the CR twin piston brake caliper to be used.....I should have some time soon to do this.....stay tuned.
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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
Front and rear, do the 450R brakes fit the 250R right away?
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Bumping this up.
I will be trying the YZ caliper as I did back in the day. I will keep you all posted.
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I got this: https://www.ebay.com/itm/yz125-yz250-front-brake-caliper-yamaha-oem-2005-2018/192455448779?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649
this is the same mount as the yz400 caliper on my 250r. some machining is needed. FYI; 250r calipers are going for $250-300. F that.
john
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I got lucky and picked up a NOS one for 35
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I’m using the full 450r setup with the exhaust spaced over some. Works great and cheap. Also Glenn innovation makes a caliper bracket to use with 450r caliper and rotor without any other mods needed. Something to consider.
http://www.glanninnovations.com/Products.html
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looks like it puts the caliper very far to the rear. is this true?
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I’m using the full 450r setup with the exhaust spaced over some. Works great and cheap. Also Glenn innovation makes a caliper bracket to use with 450r caliper and rotor without any other mods needed. Something to consider.
http://www.glanninnovations.com/Products.html
Im using this same setup. I wish it wasnt rotated towards the back so far. I am unable to run 1 of my pinch bolts for the rear carrier. But it is nice having a 450r caliper rolled back. Just needs to be about 1/2 way between stock and where Glann has it.
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I didn’t think about that Kyle, but that’s a good consideration. I could technically make those brakes if people were really interested. For now, my 450r set up is working well. I just spaced my silencer out so it wouldn’t hit the caliper.
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I didn’t think about that Kyle, but that’s a good consideration. I could technically make those brakes if people were really interested. For now, my 450r set up is working well. I just spaced my silencer out so it wouldn’t hit the caliper.
all that is needed is a new bracket cut on a laser.
I am just slotting the holes on my 250r bracket and clearancing the yz mount.
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I didn’t think about that Kyle, but that’s a good consideration. I could technically make those brakes if people were really interested. For now, my 450r set up is working well. I just spaced my silencer out so it wouldn’t hit the caliper.
Where is yours located? Mine is rolled so far back that it wont hit the silencer or anything.
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Old post id like to BUMP. Lots of good info
John, was there any movement on your bracket?
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no Josh. it worked out for many years.
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Morning Jon. I meant Jon Langman. He was in the works with NPM to make a rear caliper mount. I was wondering if he ever got that going
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Jeremy & I never got it off the ground....I ended up making a new bracket that made the Front Caliper an easy bolt on!
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2008 Ltr 450r rear brake piston works in the trx 250r caliper
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2008 Ltr 450r rear brake piston works in the trx 250r caliper
Are you sure ?
It looks like the Rear Caliper on the 2008 Ltr 450r is a Single Piston caliper.
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2008 Ltr 450r rear brake piston works in the trx 250r caliper
Are you sure ?
It looks like the Rear Caliper on the 2008 Ltr 450r is a Single Piston caliper.
i think he is talking about just the piston. not the complete caliper
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i think he is talking about just the piston. not the complete caliper
[/quote]
Correct.....Single piston Calipers usually use LARGE pistons.....as compared to the TRX250R small pistons.
The YFZ450R pistons are the same Diameter....just a bit longer.....Surely there has to be an exact fit out there SOMEWHERE!!!!!
;)
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K&L doesn't have an offering? They used to have rebuild kits. Haven't looked in some time
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K&L doesn't have an offering? They used to have rebuild kits. Haven't looked in some time
The last time I looked the rear caliper pistons were no longer available from K&L.
Joe