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:

Converting a dual disc wheel to single disc...

Thread Tools
 
Search this Thread
 
  #11  
Old 09-26-2014, 04:42 AM
MikeZ's Avatar
MikeZ
MikeZ is offline
Road Captain
Join Date: Jul 2011
Location: New Jersey
Posts: 648
Received 24 Likes on 15 Posts
Default

Guys running Softails are asking how to convert to dual discs. This one's a first for me, but I learn something new every day.
 
  #12  
Old 09-26-2014, 06:44 AM
mtiberio's Avatar
mtiberio
mtiberio is offline
Cruiser
Join Date: May 2014
Location: Delaware
Posts: 211
Likes: 0
Received 0 Likes on 0 Posts
Default

all depends if the two rotors are held on with through bolts or individual bolts on each side. It can be done either way.

in either case, you will have to cap off the brake line at the junction, or replace the brake line with a single run to the remaining caliper.

1) if individual bolts on each side, just remove the bolts to the rotor you want to remove. Go to your local mom and pop hardware store, and get some plastic plugs to stuff in the holes (or use shorter versions of the bolts that came out).

2) if through bolts, remove the bolt, and find some just a bit shorter (by the thickness of the now missing rotor carrier). Use a flat washer (not lock) under the nut of the bolt to prevent marring the wheel on the rotor carrier mating surface. You want this perfectly true in the future if you decide to put the rotor back on.

FWIW, you are not crazy, I have removed the 2nd rotor from a number of bikes I have owned. Not bikes as heavy as a Harley, but hell, Softails come with one rotor. You can upgrade the one remain side to get you to the point where you can lock up the front wheel. Does anyone need more? Advantages to going to one rotor, looks, and less unsprung weight. Forks will track bumps better...

Enjoy
 
  #13  
Old 09-26-2014, 07:50 AM
StreetGlide23's Avatar
StreetGlide23
StreetGlide23 is offline
Novice
Thread Starter
Join Date: Sep 2014
Location: North Myrtle Beach
Posts: 16
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by mtiberio
all depends if the two rotors are held on with through bolts or individual bolts on each side. It can be done either way.

in either case, you will have to cap off the brake line at the junction, or replace the brake line with a single run to the remaining caliper.

1) if individual bolts on each side, just remove the bolts to the rotor you want to remove. Go to your local mom and pop hardware store, and get some plastic plugs to stuff in the holes (or use shorter versions of the bolts that came out).

2) if through bolts, remove the bolt, and find some just a bit shorter (by the thickness of the now missing rotor carrier). Use a flat washer (not lock) under the nut of the bolt to prevent marring the wheel on the rotor carrier mating surface. You want this perfectly true in the future if you decide to put the rotor back on.

FWIW, you are not crazy, I have removed the 2nd rotor from a number of bikes I have owned. Not bikes as heavy as a Harley, but hell, Softails come with one rotor. You can upgrade the one remain side to get you to the point where you can lock up the front wheel. Does anyone need more? Advantages to going to one rotor, looks, and less unsprung weight. Forks will track bumps better...

Enjoy
Thanks for the reply... I have everything set up to do the conversion, I was just wondering if I could use this wheel. Thanks for all the input... :-)
 
  #14  
Old 09-26-2014, 08:37 AM
Architect's Avatar
Architect
Architect is offline
Seasoned HDF Member
Join Date: Apr 2010
Location: Long Island, New York
Posts: 8,101
Received 5,445 Likes on 2,776 Posts
Default

Most HD wheels are setup to accept 2 rotors, one on each side. If the bike is equipped with single disc, they just put a blank off plate on the other side. No change in spacing or anything else like that. Take a look at the cast wheels used on Sportsters and Dynas/FXR, some bikes had single disc and some had dual disc. Same wheel used for both bikes from the factory.

So assuming you figured out how to make the brakes and ABS work, I see no reason why a wheel setup for dual disc could not have a single installed. The wheel itself should perform the same and spacing should be the same.

As I type, for sure the spacing is not changed. The rotor is bolted to the wheel and the spacers go through the rotor, no contact. The rotor not being there has zero affect on spacing.
 
  #15  
Old 09-26-2014, 08:39 AM
beary's Avatar
beary
beary is offline
Grand HDF Member
Join Date: Mar 2007
Location: Edmond Oklahoma
Posts: 4,929
Received 283 Likes on 188 Posts
Default

Yes, sorry folks have a hard time seeing forest for the trees. You will get "it's your bike, do what want" until it gets personal, then they follow with "so long as you do the way I want". It's sad in some sense, but can be entertaining in another. Let's start another post on removing crash guards. Lol
 
  #16  
Old 09-26-2014, 09:10 AM
roadking2014's Avatar
roadking2014
roadking2014 is offline
Road Warrior
Join Date: Oct 2007
Location: South Carolina
Posts: 1,468
Likes: 0
Received 3 Likes on 3 Posts
Default

the ABS is gonna be the kicker. I'm sure if you go to bike night at the house of blues you can find someone thats done it or just ask someone at the NMB harley dealership. someone is always riding up thats tried something out on their bike.
 
  #17  
Old 09-26-2014, 10:09 AM
Hogpro's Avatar
Hogpro
Hogpro is offline
Former Sponsor
Join Date: Aug 2005
Posts: 10,968
Likes: 0
Received 48 Likes on 45 Posts
Default

What kind of wheel is it? After market? What brand? On a stock wheel all you do is take the rotor off but you are left with the holes for the rotor on the right hand side. With aftermarket wheels you can buy a single disc hub (depending on the brand of wheel and hub) that is designed for single disc.

In response the tire first comment in this thread, many people are more concerned with the looks of their bike than the stopping power. I personally prefer to be able to stop quicker than look good. Many people go to a 13" rotor with a 6 piston caliper when converting to single disc as this will provide more stopping power than the stock size rotor and stock caliper. There are quite a few ways to do this and if anyone has questions please call the shop.
 
  #18  
Old 09-26-2014, 10:21 AM
vzts4q's Avatar
vzts4q
vzts4q is offline
Road Master
Join Date: Apr 2008
Location: Indiana
Posts: 982
Received 4 Likes on 4 Posts
Default

ABS doesn't know how many disks you have. The one thing that does change from a dual to single disk set is the master cylinder. The bores are different.
 

Last edited by vzts4q; 09-26-2014 at 10:28 AM.
  #19  
Old 09-26-2014, 10:56 AM
Joe12RK's Avatar
Joe12RK
Joe12RK is online now
Seasoned HDF Member
Join Date: Jun 2012
Location: CT
Posts: 5,393
Received 1,602 Likes on 980 Posts
Default

Originally Posted by el loco rico
I don't think that the rotor on either side is part of the wheel spacer . I think as long as you plug the hose to whatever side you want to remove you should be able to just remove the rotor and caliper and your done . As far as abs I don't know i

f it would work or not.
Correct! The rotor's got nothing to do with the wheel spacers - abs or not - just take it off. But if the OP can't see that by looking at the bike, he probably shouldn't be doing this mod himself...
 
  #20  
Old 09-26-2014, 11:20 AM
Hogpro's Avatar
Hogpro
Hogpro is offline
Former Sponsor
Join Date: Aug 2005
Posts: 10,968
Likes: 0
Received 48 Likes on 45 Posts
Default

Originally Posted by vzts4q
ABS doesn't know how many disks you have. The one thing that does change from a dual to single disk set is the master cylinder. The bores are different.

This depends on the year of your bike. 2000-2007 needs a different master cylinder (9/16) but 2008 and newer work fine single disc with the stock bore master cylinder. 08 and newer bore is a metric more, not sure of the actual number.
 


Quick Reply: Converting a dual disc wheel to single disc...



All times are GMT -5. The time now is 09:16 AM.