Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Brembo (front) Swap Question...

Thread Tools
 
Search this Thread
 
Old Sep 9, 2014 | 09:28 PM
  #21  
goldie's Avatar
goldie
Tourer
Joined: Feb 2008
Posts: 403
Likes: 44
From: Montana
Default

Originally Posted by '05Train
Two things of note:

- You have to run DOT 4 in the Brembos. If your '99 is a DOT 5 bike, you'll need to either completely flush out the DOT 5 or replace everything.

- The Brembos have the banjo fitting in a different spot, and the fitting is a different size from the older calipers (at least it was on my Night Train). No way I could have re-used the line.
Old thread I know, I changed over to the Brembo's in my '99 and just flushed the lines, went w/ Dot 4 and after 1 year no problem. This year with a WO515 handlebar install went with the stock 2013 touring setup brake lines. I really thought it would change the feel but exactly the same, quite good but I thought 15 year brake lines would have stretched and degraded some.

Just my observation........goldie
 
Reply
Old May 20, 2015 | 07:33 PM
  #22  
just plain john's Avatar
just plain john
Grand HDF Member
10 Year Member
Liked
Loved
Joined: Nov 2012
Posts: 3,784
Likes: 100
From: Pasadena TX
Default

Digging up an old thread yet again. I'm searching for Brembo answers of a different sort, but my search led me here. Do the brake lines have to be swapped on a pre 08 touring bike when upgrading to the 08 and up Brembo calipers? What about the master cylinder? So far it seems yes on the brake line and not necessarily on the m/c. I'm trying to get my ducks lined up in a row before swapping to an Enforcer front wheel. Thanks for any advice.
 
Reply
Old May 20, 2015 | 07:46 PM
  #23  
Gliden's Avatar
Gliden
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Default

Gonna bring my father back from the dead.

"Jim....did you go to engineering school? No dad.
"Jim...do you think your smarter than the guys who went to school for years and designed these machines ???? No dad.

Jim why the fuc would you think you can remove a brake caliper from a bike that was designed by Engineers to have two?????
Jesus son....you never cease to amaze me ......
 
Reply
Old May 20, 2015 | 07:59 PM
  #24  
just plain john's Avatar
just plain john
Grand HDF Member
10 Year Member
Liked
Loved
Joined: Nov 2012
Posts: 3,784
Likes: 100
From: Pasadena TX
Default

Just for the record, I'm not interested in going to a single caliper. May your father RIP.
 
Reply
Old May 20, 2015 | 08:25 PM
  #25  
Leftcoaster's Avatar
Leftcoaster
Outstanding HDF Member
Joined: Jan 2008
Posts: 3,328
Likes: 15
From: Pacific Northwest
Default

Originally Posted by just plain john
Digging up an old thread yet again. I'm searching for Brembo answers of a different sort, but my search led me here. Do the brake lines have to be swapped on a pre 08 touring bike when upgrading to the 08 and up Brembo calipers? What about the master cylinder? So far it seems yes on the brake line and not necessarily on the m/c. I'm trying to get my ducks lined up in a row before swapping to an Enforcer front wheel. Thanks for any advice.

Before you go to all that trouble take a look at Hawg Halters. They have a nice six piston set-up that's chromed (or black) and fits your scoot with no other mods. Just install the new caliper and bleed (and you can stay with the stock DOT-5 fluid).
Another benefit is there's no name plastered all over the caliper - very nice touch.

They work far better than stock (one or two finger braking) and I've used the two piston models on my '06 SG as well as the six piston model on the wife's '07 Heritage.
 
Reply
Old May 20, 2015 | 08:50 PM
  #26  
just plain john's Avatar
just plain john
Grand HDF Member
10 Year Member
Liked
Loved
Joined: Nov 2012
Posts: 3,784
Likes: 100
From: Pasadena TX
Default

I already have calipers, my question was about the lines and master cylinder.
 
Reply
Old May 20, 2015 | 08:58 PM
  #27  
FastHarley's Avatar
FastHarley
Former Sponsor
Joined: Apr 2007
Posts: 5,360
Likes: 453
From: Davie, FL
Default Rotors

The whole idea behind twin rotors is to dissipate the heat. Reducing kinetic energy (you and your bike moving) requires the exact amount of energy opposing the moving object. On your bike the method is increased friction. The formula for kinetic energy (KE) = 1/2 X Mass X [velocity(m/s)2. That energy is transformed into heat on your bike. Energy can never be created or destroyed, that is the physics of our planet (never been anywhere else). If you do not utilize the calipers/pads/rotors within the operation temperature they were designed for, than you will not stop.

I am fully expecting a barrage of replies asking 'why in the heck would you do that...' or some other such statements. Nonetheless. I'm asking anyway.
Either you can believe you will never ever need to stop quickly and an emergency will never happen to you than, I say, go for it. You only really need brakes at the end anyhow. Your decision is yours alone and will not effect me at all unless you run through my bike. Do what you like as it is not my or anyone's business here unless you run through my bike.
 
Reply
Old May 20, 2015 | 09:57 PM
  #28  
senna's Avatar
senna
Road Master
Joined: Apr 2012
Posts: 1,096
Likes: 17
From: San Jose
Default

Originally Posted by just plain john
I already have calipers, my question was about the lines and master cylinder.
To answer your question, the difference between Brembo and the previous brake systems is, Brembos have a 10mm banjo bolt and the previous system has 7/16 banjo bolt.

You could replace the lines or just ream (or drill) the fitting on the lines. Of course this will require a thorough cleaning after drilling the fittings.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

 Verdad Gallardo
story-1

6 Weirdest Harley-Davidsons Ever Sold to the Public

 Verdad Gallardo
story-2

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-3

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-4

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-5

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-6

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-7

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-8

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-9

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
Old May 20, 2015 | 11:54 PM
  #29  
Mike's Avatar
Mike
Ultimate HDF Member
Joined: Jun 2009
Posts: 6,786
Likes: 40
From: Centralia, Wa
Default

A few years ago, I swapped out front brakes, first just the calipers, keeping the old rotors and master cylinder. That works, kinda, but the pads don't quite line up to the rotor. No real difference in braking, better or worse. Next, I changed out to the 300mm rotors, but kept the old brake lines and master cylinder. Better fitment of pads to rotors, but still no significant improvement in braking over the stock brakes. Next, I added the new style master cylinder and clutch perch. This improved braking by reducing lever pull. Finally, I swapped to six piston, single side brakes, which was a step backwards in braking performance, and increased lever pull. Next change will be to add another six piston caliper, and return to dual front brakes.
 
Reply
Old May 21, 2015 | 05:58 PM
  #30  
Gliden's Avatar
Gliden
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Default

Originally Posted by just plain john
Just for the record, I'm not interested in going to a single caliper. May your father RIP.
I'm an idiot. Sorry John. I didn't read it well enough. My bad.
 
Reply



All times are GMT -5. The time now is 06:55 AM.

story-0
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom

Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.

By Verdad Gallardo | 2026-06-03 18:28:05


VIEW MORE
story-1
6 Weirdest Harley-Davidsons Ever Sold to the Public

Slideshow: From military-inspired singles to scooters and three-wheel utility vehicles, these Harleys took the company far outside its comfort zone.

By Verdad Gallardo | 2026-06-02 18:34:10


VIEW MORE
story-2
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-3
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-4
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-5
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-6
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-7
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-8
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-9
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE