Harley Davidson Forums

EVO All Evo Model Discussion

Counter Sunk Rotor Washers

Thread Tools
 
Search this Thread
 
Old Sep 6, 2024 | 10:10 AM
Share
  #1  
Racepres's Avatar
Racepres
Thread Starter
|
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Default Counter Sunk Rotor Washers
New one on Me...
Anyone know what Madels used a counter sunk toothed washer to mount front rotor???
TIA
 
Reply
0
Old Sep 6, 2024 | 02:56 PM
Share
  #2  
t150vej's Avatar
t150vej
HDF Community Team
20 Year Member
Community Favorite
Top Answer: 3
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
Community Team
Default
No Evo came from factory like that. 5/16' button head with blue lock patch or 242 is the prescription.

Maybe someone just couldn't stand the thought of no lock washer.


 
Reply
1
Old Sep 7, 2024 | 07:29 AM
Share
  #3  
Bubba Zanetti's Avatar
Bubba Zanetti
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2006
Posts: 21,052
Likes: 19,188
From: The Wasteland
Default
Where’d you see this at?
 
Reply
0
Old Sep 7, 2024 | 10:04 AM
Share
  #4  
Racepres's Avatar
Racepres
Thread Starter
|
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Default
I think I found it...My Eyesight is Off... 3/8 counter sunk...Not all Rotors are Flat..I have more than a couple here with counter sunk rotor Fasteners.. I will peruse the Parts Fiche..maybe find those Locking washers...
Originally Posted by t150vej
No Evo came from factory like that. 5/16' button head with blue lock patch or 242 is the prescription.

Maybe someone just couldn't stand the thought of no lock washer.

@t150vej I never thought there was much difference in Shovelhead vs Evo rotors.....certainly Not Early ones..But..I do Not pay that close attention...Mix and Match at my place..
 
Last edited by Racepres; Sep 7, 2024 at 10:08 AM.
Reply
0
Old Sep 8, 2024 | 04:30 PM
Share
  #5  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Top Answer: 5
Joined: Mar 2010
Posts: 21,095
Likes: 7,622
From: Poolville
Default
3/8" is a rear rotor not a front.. Fronts use a 5/16"..
 
Reply
0
Old Sep 8, 2024 | 05:11 PM
Share
  #6  
Racepres's Avatar
Racepres
Thread Starter
|
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Default
Originally Posted by 98hotrodfatboy
3/8" is a rear rotor not a front.. Fronts use a 5/16"..
Yes...Correct...I just noticed, depending on the Caliper..some FXR's and I bet others, used those CounterSunk fasteners.. Heads flush with Rotor Surface..
Now..What was the Deal with the Darn Toothed Washer???
 
Reply
0
Old Sep 8, 2024 | 05:21 PM
Share
  #7  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Top Answer: 5
Joined: Mar 2010
Posts: 21,095
Likes: 7,622
From: Poolville
Default
The only time I ever seen counter song screws for the front rotors were with aftermarket rotors and I even had one on my Fatboy.. The rim was aftermarket that had a wider hub.. It was a large spoke 18" rim where I had to use a rotor that had a quarter inch offset on it and that had the countersunk screws..
 
Reply
0

Trending Topics

Old Sep 8, 2024 | 08:05 PM
Share
  #8  
Racepres's Avatar
Racepres
Thread Starter
|
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Default
Originally Posted by 98hotrodfatboy
The only time I ever seen counter song screws for the front rotors were with aftermarket rotors and I even had one on my Fatboy.. The rim was aftermarket that had a wider hub.. It was a large spoke 18" rim where I had to use a rotor that had a quarter inch offset on it and that had the countersunk screws..
Dual Disk and Pie Slice caliper applications into the late '70's. On into the '80's on FXR's at least
But... What 3/8 Countersunk Rotor Bolts used Lock Washers????
 
Reply
0
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

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

 Verdad Gallardo
story-5

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

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Sep 8, 2024 | 10:24 PM
Share
  #9  
s-glide76's Avatar
s-glide76
Road Warrior
5 Year Member
Liked
Loved
Community Favorite
Joined: May 2017
Posts: 1,343
Likes: 2,057
From: Phoenix
Default
My 82 FXRS has dual disks with countersunk screws. No lock washers.



 
Last edited by s-glide76; Sep 8, 2024 at 10:30 PM.
Reply
0
Old Sep 8, 2024 | 10:38 PM
Share
  #10  
Racepres's Avatar
Racepres
Thread Starter
|
Seasoned HDF Member
Community Builder
Loved
Community Favorite
Top Answer: 1
Joined: Jul 2014
Posts: 8,590
Likes: 3,361
From: Cental, MI
Default
Right... But, I am Inquiring about 3/8, Rotor, Counter sunk fasteners, with a Locking Washer.. Rear... Unless yer turning a Rear into a front on an early Touring Bike... BTDT
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 12:55 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE