Rear Brakes on my 2020 Tri Glide

PTR · Feb 6, 2020

My wife bought me by request low dust brake pads for my 2020 Tri Glide. This weekend I went to install them and the rear calipers are different than anything I have seen on line. The front pads were correct but the rear not so much. It took me a while to figure out how to put them back together with the old pads because the piston has moved out a little during the disassembly. I did not want to force anything and cause damage and for a while i didn't think I was going to get it back together without some instruction. I ended up realizing that if i pushed the piston in at the same time as I screwed it clockwise it would go in.

Does anyone know when they changed the caliper design on the rear calipers?

PTR · Feb 6, 2020

This is the rear pad.

ultrafxr · Feb 6, 2020

Peter, I don't know what changed on the rear calipers but I can tell you I had a similar problem several years ago. I was installing new brake pads on my wife's Infiniti and had no problem with the front but could not get the pistons on the rear calipers to retract. Finally I went to Auto Zone where I purchased the pads and they informed me that I needed a special tool (which they loaned me) to get the pistons to retract. As best I recall it turned and pushed on the pistons which is what you did to get them to retract. Perhaps that same or similar tool is required on your TG - or at least make it easier to do.

rhino 2 · Feb 6, 2020

ultrafxr said:
Peter, I don't know what changed on the rear calipers but I can tell you I had a similar problem several years ago. I was installing new brake pads on my wife's Infiniti and had no problem with the front but could not get the pistons on the rear calipers to retract. Finally I went to Auto Zone where I purchased the pads and they informed me that I needed a special tool (which they loaned me) to get the pistons to retract. As best I recall it turned and pushed on the pistons which is what you did to get them to retract. Perhaps that same or similar tool is required on your TG - or at least make it easier to do.

My VW.....GTi......1976 was the same, They had to be screwed in and pressed down...

The tool i used i had bought at a outdoor flea market years earlier..At the time i had no idea what it was for, Was told it was for a steam engine but for 25 cents i bought it back then i bought tons of tools and sooner or later i would always find a use for them, Those were the days of real flea markets..Not Chinese junk..

Jack Klarich · Feb 6, 2020

This piston actuator is similar to what the auto market has been using for years on rear calipers. A tool set like this

is used to turn the piston back in while under slight pressure. You can rent this set @ many automotive parts stores. I bought my set many years ago. Subaru had this type of caliper on some early front axles

Jack Klarich · Feb 6, 2020

This piston actuator is similar to what the auto market has been using for years on rear calipers. A tool set like this

is used to turn the piston back in while under slight pressure. You can rent this set @ many automotive parts stores. I bought my set many years ago. Subaru had this type of caliper on some early front axles

PTR · Feb 6, 2020

Jack Klarich said:
This piston actuator is similar to what the auto market has been using for years on rear calipers. A tool set like this

is used to turn the piston back in while under slight pressure. You can rent this set @ many automotive parts stores. I bought my set many years ago. Subaru had this type of caliper on some early front axles

I understand how rear brakes with emergency brakes work, have worked on them for years as a tech. My question is when did they change. I want to put low dust pads on and can't find anything aftermarket. If I go to aftermarket sites for rear pads they are wrong. If you look online for remove and install info they show a different style that you take a rubber boot off the back of the caliper and loosen a big nut. They use a different pad also.

PTR · Feb 6, 2020

ultrafxr said:
Peter, I don't know what changed on the rear calipers but I can tell you I had a similar problem several years ago. I was installing new brake pads on my wife's Infiniti and had no problem with the front but could not get the pistons on the rear calipers to retract. Finally I went to Auto Zone where I purchased the pads and they informed me that I needed a special tool (which they loaned me) to get the pistons to retract. As best I recall it turned and pushed on the pistons which is what you did to get them to retract. Perhaps that same or similar tool is required on your TG - or at least make it easier to do.

Jerry,

I have seen quite a few different designs of rear brakes calipers that also are used for the emergency brake. The problem is they all are just different enough that not resetting the piston right could get very expensive. Sometimes you could think you did it right and find out when you hit the brakes that something inside the caliper was damaged and the brake won't release. I have seen techs do it. My trike has 50 miles on it so I really don't want to buy a new caliper for it. I am quite sure their is a hefty Harley tax on one.

Jack Klarich · Feb 6, 2020

PTR said:
Jerry,

I have seen quite a few different designs of rear brakes calipers that also are used for the emergency brake. The problem is they all are just different enough that not resetting the piston right could get very expensive. Sometimes you could think you did it right and find out when you hit the brakes that something inside the caliper was damaged and the brake won't release. I have seen techs do it. My trike has 50 miles on it so I really don't want to buy a new caliper for it. I am quite sure their is a hefty Harley tax on one.

Very good point. There are a few models of rear actuator pistons that turn in counter clock wise in the automotive world. If not done correctly you will end up ruining a caliper and or best if you can say that you will have a leaker

Jack Klarich · Feb 6, 2020

PTR said:
I understand how rear brakes with emergency brakes work, have worked on them for years as a tech. My question is when did they change. I want to put low dust pads on and can't find anything aftermarket. If I go to aftermarket sites for rear pads they are wrong. If you look online for remove and install info they show a different style that you take a rubber boot off the back of the caliper and loosen a big nut. They use a different pad also.

2019 rear pads are different from 15-18 models as are the rear calipers, I dunno about the 2020 models

PTR · Feb 7, 2020

Jack Klarich said:
2019 rear pads are different from 15-18 models as are the rear calipers, I dunno about the 2020 models

I did a live chat with JP Cycles last night and they kept coming up with the wrong rear pads. I hate brake dust, I will wait until Daytona bike week and check out the vendors for the right ones.

I did find out that on the right side you have to spin the piston clockwise and push in hard while turning. I don't know if the left side turns the sameway. When I find the pads I will post the results. Somewhere in my toolbox I have the piston tool. Just need to figure out where.

PTR · Feb 7, 2020

ultrafxr said:
Peter, I don't know what changed on the rear calipers but I can tell you I had a similar problem several years ago. I was installing new brake pads on my wife's Infiniti and had no problem with the front but could not get the pistons on the rear calipers to retract. Finally I went to Auto Zone where I purchased the pads and they informed me that I needed a special tool (which they loaned me) to get the pistons to retract. As best I recall it turned and pushed on the pistons which is what you did to get them to retract. Perhaps that same or similar tool is required on your TG - or at least make it easier to do.

This is the conversation with JP

rear low dust brake pads for 2020 cvo tri glide

Chat By Chat (Christopher B.) (02/06/2020 07:25 PM)

Hi, my name is Christopher B.. One moment while I review your question.

Christopher B.: Unfortunately I do not have info on your bike at this time.

Christopher B.: I am going to check parts fiche

rocco: how about a 2019

Christopher B.: The issue is the CVO they tend to do drastic changes, I am searching for it. It may take a moment

rocco: ok

Christopher B.: ok brembo brakes all around

Christopher B.: I would go with EBC double H sintered, no dust

rocco: part number?

Christopher B.: https://www.jpcycles.com/product/244-646/ebc-double-h-sintered-front-rear-brake-pads

Fits both front and rear

Christopher B.:

Is there anything else I might help you with?

rocco: nope, rears are different than front

Christopher B.: Only the one comes up for both.

Christopher B.: You might have to go through Harley

Christopher B.:

Is there anything else I might help you with?

rocco: I bought the ones you recommended, they a very different than what's on the back. they do fit the front.

rocco: to much dust to stay oem. thanks for looking,

Christopher B.: sure thing

Christopher B.:

Thank you for chatting with me at J&P Cycles. Have a great day!

'rocco' disconnected ('Concluded by Agent').

Jack Klarich · Feb 7, 2020

PTR said:
I did a live chat with JP Cycles last night and they kept coming up with the wrong rear pads. I hate brake dust, I will wait until Daytona bike week and check out the vendors for the right ones.

I did find out that on the right side you have to spin the piston clockwise and push in hard while turning. I don't know if the left side turns the sameway. When I find the pads I will post the results. Somewhere in my toolbox I have the piston tool. Just need to figure out where.

Very nice Snap On Stack and end cabs ya got there

rhino 2 · Feb 7, 2020

PTR said:
I did find out that on the right side you have to spin the piston clockwise and push in hard while turning. I don't know if the left side turns the sameway. When I find the pads I will post the results. Somewhere in my toolbox I have the piston tool. Just need to figure out where.

Pete....I guarantee it will be in the last place you look.........

.

PTR · Feb 8, 2020

Jack Klarich said:
Very nice Snap On Stack and end cabs ya got there

Thanks

PTR · Feb 8, 2020

rhino 2 said:
Pete....I guarantee it will be in the last place you look...........

I don't turn many wrenches anymore but you still have to have a place to keep them all. I just bought the box a few months ago and can't find anything I am looking for. I had the same set up but a little smaller and had a great plan of organization when I moved them to the new box. That plan fell apart after the third draw. I kept my old box for the house and that's a mess too.

PTR · Feb 8, 2020

I sent an email to EBC and this was there reply, I did order a set and will post if they fit.

"We currently don’t list 2020 Harley models or anything for the CVO range.

The pad in question though is FA631HH"

Kind regards

Gareth Preston

Technical Advisor Motorcycle

01604 583344

rhino 2 · Feb 8, 2020

PTR said:
I don't turn many wrenches anymore but you still have to have a place to keep them all. I just bought the box a few months ago and can't find anything I am looking for. I had the same set up but a little smaller and had a great plan of organization when I moved them to the new box. That plan fell apart after the third draw. I kept my old box for the house and that's a mess too.

I have two Sons, And a Grandson who find it mandatory to spred my tools to the four corners of my barn....:xzqxz:....

PTR · Feb 8, 2020

rhino 2 said:
I have two Sons, And a Grandson who find it mandatory to spred my tools to the four corners of my barn....:xzqxz:....

Bob, It is sad to say but you are very lucky to have sons and a grandson that even have the interest in anything that requires the use of tools. Most kids and young adults don't have any interest in fixing anything or using their hands.

jonfjr · Feb 9, 2020

PTR said:
I did a live chat with JP Cycles last night and they kept coming up with the wrong rear pads. I hate brake dust, I will wait until Daytona bike week and check out the vendors for the right ones.

I did find out that on the right side you have to spin the piston clockwise and push in hard while turning. I don't know if the left side turns the sameway. When I find the pads I will post the results. Somewhere in my toolbox I have the piston tool. Just need to figure out where.

Sweet setup.

Rear Brakes on my 2020 Tri Glide

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