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Harley Davidson Forums (https://www.hdforums.com/forum/)
-   Sportster Models (https://www.hdforums.com/forum/sportster-models-10/)
-   -   Help! 07 XL1200L front brake (https://www.hdforums.com/forum/sportster-models/1207384-help-07-xl1200l-front-brake.html)

hscic 11-13-2017 12:56 AM
Wow that is a huge rotor....did you mock it up already?

I increased the size of my rear rotor from stock to 11.5" and had to relocate the caliper forward on the swingarm.

cvaria 11-13-2017 01:05 AM
Originally Posted by lewk (Post 16822571)
Thanx Blue Scoot. I put a bigger rotor on and so, I need to relocate the caliper further up the fork leg:And yes, I can already hear cvaria's howl of disgust all the way from here :icon_dopey:

That's ok, I am one of those who favor function over form.
no beef from me... i refuse to run anything else :icon_nut:


https://cimg7.ibsrv.net/gimg/www.hdf...efbc161803.jpg

Blue Scoot 11-13-2017 07:07 AM
Wow! Those rotors look great!! Got any more info on them?

cvaria 11-13-2017 09:32 AM
Originally Posted by Blue Scoot (Post 16822994)
Wow! Those rotors look great!! Got any more info on them?
Arlen ness big brake kit. comes in normal or contoured.



http://www.arlenness.com/prodcat/big-brake-rotors.asp

blah blah:
  • Supercharge your braking performance and style with these over-sized rotor kits from Arlen Ness.
  • These kits provide a minimum of 30% more stopping power than factory sized rotors.
  • Utilizes your factory brake caliper and brake hose.
  • 15" rotors are constructed from stainless steel and floating hardware.
  • Brake caliper adapter bracket is machined from billet aluminum and re-locates the caliper to the proper position for the over-sized rotor.
  • Utilizes your factory brake caliper and brake hose.
  • Each kit includes an over-sized floating rotor and billet brake caliper adapter and necessary hardware.
  • Left and right side rotor kits are available, sold individually.

lewk 11-13-2017 01:07 PM
Originally Posted by cvaria (Post 16822703)
no beef from me... i refuse to run anything else :icon_nut:
Oh cool, so then you can help me [again]. What am I supposed to file off? I don't understand that part of the instructions.

cvaria 11-13-2017 01:53 PM
Originally Posted by lewk (Post 16824033)
Oh cool, so then you can help me [again]. What am I supposed to file off? I don't understand that part of the instructions.
install here: https://www.hdforums.com/forum/sport...l#post14787123

most of the vids out there only cover big twin installs

there is a raised portion (boss) above the lower caliper bolt hole that needs to be ground down to even with the rest of the surface


https://cimg6.ibsrv.net/gimg/www.hdf...d31b7c5545.jpg



this is my old right side caliper. same thing just flipped

lewk 11-13-2017 02:43 PM
Originally Posted by hscic (Post 16822698)
... did you mock it up already?
I didn't need to do anything, I just bought the whole thing and it includes an offset that you bolt onto the front leg and then you bolt the calipers onto the offset. That causes the caliper to relocate to the right place to grip the bigger rotor.
Originally Posted by hscic (Post 16822698)
... I increased the size of my rear rotor from stock to 11.5" and had to relocate the caliper forward on the swingarm.
How did you relocate the rear caliper? I'd like to do that too, if it's not too difficult.
Originally Posted by cvaria (Post 16824132)
install here: ...
Thanx for the link. I didn't think you'd go for such a big ugly contraption on your bike. I'm ok with it but as I said, I favor function over form.
Originally Posted by cvaria (Post 16824132)
... there is a raised portion (boss) above the lower caliper bolt hole ...
:icon_rant: fvcking Arlen Ness, why can't they just say lip or raised portion above the lower caliper bolt hole! WTF is a boss??

cvaria 11-13-2017 05:06 PM
Originally Posted by lewk (Post 16824267)




Thanx for the link. I didn't think you'd go for such a big ugly contraption on your bike. I'm ok with it but as I said, I favor function over form.
no doubt on function first. the ness single upgrade was great. i refuse to go back to normal size rotors.

lewk 11-13-2017 07:31 PM
Originally Posted by cvaria (Post 16824132)
install here: ...
OK, I am definitely doing something wrong here: in my case, the pads rub against the new rotor.

No matter how I wiggle and jiggle, it still does that. I filed away the "boss". When I press the brake lever, it definitely works and grabs well. But the pads just won't release the rotor completely when I let go. :-(

cvaria 11-13-2017 07:50 PM
Originally Posted by lewk (Post 16825002)
OK, I am definitely doing something wrong here: in my case, the pads rub against the new rotor.

No matter how I wiggle and jiggle, it still does that. I filed away the "boss". When I press the brake lever, it definitely works and grabs well. But the pads just won't release the rotor completely when I let go. :-(
try resetting the pads and bleeding


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