Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

Front fork cap thread size NEED HELP!

Thread Tools
 
Search this Thread
 
Old Jan 24, 2019 | 09:41 PM
  #1  
IrishHick1776's Avatar
IrishHick1776
Thread Starter
|
Intermediate
Joined: Jan 2019
Posts: 45
Likes: 5
From: San Diego
Default Front fork cap thread size NEED HELP!

Had a buddy helping me with my front forks, and he cross threaded my fork tube cap. Does anyone know the thread size so I can hit it with a tap and die?
 

Last edited by IrishHick1776; Jan 24, 2019 at 09:45 PM.
Reply
Old Jan 25, 2019 | 12:15 AM
  #2  
hscic's Avatar
hscic
Grand HDF Member
Joined: Dec 2014
Posts: 4,890
Likes: 553
From: USA
Default

Don't know the thread size as I have never heard anyone using a tap and die to re-thread the fork tube and/or the cap. Do they even have such a large size.

The cap nut is 1 3/8" (I believe 35mm is an equivalent size in metric).

The fork cap is under a lot of spring tension so I would replace fork tube and cap rather than re-thread....IMHO it is the safer route, but that is just me. It is definitely not cheap.

Good luck
 

Last edited by hscic; Jan 25, 2019 at 01:07 AM.
Reply
Old Jan 25, 2019 | 01:01 AM
  #3  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,104
Likes: 51,372
From: Niles Canyon Ca.
Default

Originally Posted by IrishHick1776
Had a buddy helping me with my front forks, and he cross threaded my fork tube cap. Does anyone know the thread size so I can hit it with a tap and die?
A tap that size if you can find one will cost you twice what a new set of fork tubes will. I know it'll be a pain but least expensive and simplest remedy at this point is replacement, you can probably hit an indy shop and pick up a pull off for dirt cheap.

 
Reply
Old Jan 25, 2019 | 10:44 AM
  #4  
WKNDS's Avatar
WKNDS
Grand HDF Member
Joined: Nov 2012
Posts: 4,966
Likes: 2,060
From: Newport,TN area
Default

Originally Posted by hscic
Don't know the thread size as I have never heard anyone using a tap and die to re-thread the fork tube and/or the cap. Do they even have such a large size.
The cap nut is 1 3/8" (I believe 35mm is an equivalent size in metric).
The fork cap is under a lot of spring tension so I would replace fork tube and cap rather than re-thread....IMHO it is the safer route, but that is just me. It is definitely not cheap.
Good luck

A homemade "improvised" tool from a furniture/wood clamp can be useful for this, here's some pics:









If the tube's threads are really butchered badly, I'd recommend getting a new/used tube
and a fork rebuild kit. RonniesHD microfiche can be used to get part numbers...
http://partsfinder.onlinemicrofiche....artsfinder.htm


hth,

T.
 
Reply
Old Jan 25, 2019 | 01:41 PM
  #5  
grbrown's Avatar
grbrown
Club Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2007
Posts: 45,429
Likes: 2,897
From: Bedford UK
Default

I suspect the nut and tube threads are machine-cut, not cut using a die and tap. The suggestion to get a replacement tube and nut is wise.
 
Reply
Old Jan 25, 2019 | 03:26 PM
  #6  
TStephen's Avatar
TStephen
Road Warrior
Joined: Mar 2016
Posts: 1,713
Likes: 299
From: SC
Default

Originally Posted by TwiZted Biker
A tap that size if you can find one will cost you twice what a new set of fork tubes will. I know it'll be a pain but least expensive and simplest remedy at this point is replacement, you can probably hit an indy shop and pick up a pull off for dirt cheap.
Also, get a new "buddy" while you're at it.
 
Reply
Old Jan 25, 2019 | 03:29 PM
  #7  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,104
Likes: 51,372
From: Niles Canyon Ca.
Default

Originally Posted by TStephen
Also, get a new "buddy" while you're at it.
Couple of mine are barred from my tool box.
 
Reply
Old Jan 25, 2019 | 07:34 PM
  #8  
IrishHick1776's Avatar
IrishHick1776
Thread Starter
|
Intermediate
Joined: Jan 2019
Posts: 45
Likes: 5
From: San Diego
Default

Y’all have been a big help. The buddy is banned from the garage. As for new tubes I checked a few shops around me and the one shop that had a tube wants $120 for a used tube that looks worse than the one with bad threads. Has anyone here heard of, or bought parts from HardDrive? Found two tubes for $150 from them.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Jan 25, 2019 | 07:46 PM
  #9  
WKNDS's Avatar
WKNDS
Grand HDF Member
Joined: Nov 2012
Posts: 4,966
Likes: 2,060
From: Newport,TN area
Default

You can get them new from BoardtrackerHD online for ~$63.00 each (the tube I looked up)
http://www.boardtrackerharleyonline.com/

You didn't list your model/year or I would've looked up the part number.
http://partsfinder.onlinemicrofiche....artsfinder.htm

good luck,

T.
 
Reply
Old Jan 25, 2019 | 08:07 PM
  #10  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,104
Likes: 51,372
From: Niles Canyon Ca.
Default

Originally Posted by IrishHick1776
Y’all have been a big help. The buddy is banned from the garage. As for new tubes I checked a few shops around me and the one shop that had a tube wants $120 for a used tube that looks worse than the one with bad threads. Has anyone here heard of, or bought parts from HardDrive? Found two tubes for $150 from them.
About right, they will drop ship from another supplier is all, depending on how late model you have try this place, I've been using stuff from 30+ yrs now. Place like J&P have huge markups price wise

http://www.jirehcycles.com/
 
Reply



All times are GMT -5. The time now is 03:31 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE