Motorcycle Fork Components
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39mm Super Narrow Tree Set
Mullins Chain Drive
$500.00


Chrome Fork Neck Cup Kit with Fork Stops for Harley-Davidson Big Twins
V-Twin Manufacturing
$78.22


Chrome Fork Neck Cup Kit for Harley-Davidson Big Twins
V-Twin Manufacturing
$78.37


Chrome Neck Cup Hidden / Internal Fork Stop Kit 1949-1987 Harley-Davidson Big Twins
V-Twin Manufacturing
$81.86


39mm Narrow Glide "The Clinch" Fork Brace - Gloss Black
Bare Knuckle Performance
$299.00


Ironhead Sportster Neck Cup Conversion 7/8 inch to 1 inch
V-Twin Manufacturing
$120.43

Neck Post Bearing and Race Set 1980-13 Harley-Davidson FLT/FLHT 99-13 FLTR/FLHR 60-86 FL/FX/FXWG 84-17 FXST/FLST 99-17 Dyna 82-21 XL
Drag Specialties
$25.95


Triumph Harley Neck Bearing Conversion - Fit a HD or Springer front end to your Triumph
British Standard
$65.93



49mm Harley-Davidson Front End Extended Damper Tube Kit
Til Death Cycles
$99.95


39mm Fork Shrouds - Black - 1987-Up - Harley-Davidson Sportsters
Lowbrow Customs
$109.99


39mm Fork Boot Gaiter Set for Harley Sportster's Front Forks
Cycle Standard
$37.73


Universal Fork Boot Gaiter Set for 41mm Front Forks
Cycle Standard
$37.73


SAVE 10%
Drop-In Front Fork Lowering Kit - fits 1988-2015 Harley-Davidson Sportster XL Models
Progressive Suspension
$134.96
$149.95


SAVE 10%


SAVE 10%

SAVE 11%
Heavy-Duty Fork Springs 1999-2005 Harley-Davidson FXD FXDC FXDL 2004-15 XL Models
Progressive Suspension
$113.60
$126.95


SAVE 10%

SAVE 10%
39 mm Fork Preload Adjuster - Raw Machined Finish
The Speed Merchant
$143.96
$159.95

SAVE 3%
Monotube Fork Cartridge Kit - Standard - 2007 Harley-Davidson XL50 04-10 XL883C 04-09 XL1200R 06-07 XL883R
Progressive Suspension
$279.31
$287.95


Chrome Neck Cup Hidden / Internal Fork Stop Kit 1957-1981 Harley-Davidson Sportsters
V-Twin Manufacturing
$88.14


Triumph Neck Roller Bearing Conversion - modern bearings for your old Triumph motorcycle
British Standard
$66.77


SAVE 20%
Hidden / Internal Fork Stop Kit Harley-Davidson Big Twins
Cycle Standard
$129.32
$161.65



39mm Extended Damper Tube Kit- Harley-Davidson Front End
Til Death Cycles
$99.95

SAVE 10%
49 mm Fork Preload Adjuster - Gold Finish
The Speed Merchant
$161.96
$179.95


Fork Boot Gaiter Set for 1954 - 1970 Harley-Davisdson Ironhead Sportster XL Models OEM #46001-54
Cycle Standard
$30.73



SAVE 10%
39 mm Fork Preload Adjuster - Black Anodized Finish
The Speed Merchant
$152.96
$169.95



39mm Harley-Davidson Cartridge Eliminator Kit
Til Death Cycles
$149.95


Stainless Steel Fork Seal Holders 1968-1970 Triumph
British Standard
$140.57


Pro-One Hidden Hidden / Internal Fork Stop Kit
Pro One Performance Products
$139.99

SAVE 10%
Heavy-Duty Fork Springs 2006-17 Harley-Davidson FX Models
Progressive Suspension
$114.26
$126.95

SAVE 10%
Replacement Fork Springs 1988-03 Harley-Davidson XL Models
Progressive Suspension
$100.76
$111.95

SAVE 10%
Replacement Fork Springs 2016-20 Harley-Davidson XL Models
Progressive Suspension
$100.76
$111.95


Hidden / Internal Fork Stop Kit 1989-1999 Harley-Davidson Softail
Pro One Performance Products
$94.95


SAVE 20%
39mm Fork Shrouds - Raw Steel - Harley-Davidson Sportsters
Lowbrow Customs
$87.99
$109.99


Tapered Neck Bearing Conversion Kit for 1952 - 1977 Harley-Davidson XL
V-Twin Manufacturing
$76.57


Replacement Lower 39mm Damper Springs 1987-Up Harley-Davidson XL 1991-2005 FXD 1987-1994 FXR
V-Twin Manufacturing
$19.76


49mm Mid Glide "The Clinch" Fork Brace - Gloss Black
Bare Knuckle Performance
$324.00
OEM & Aftermarket Motorcycle Fork Components
Choosing motorcycle fork components is important
... Read more
Motorcycle Fork Components FAQ
How can I know my fork springs wear out?
You can tell if you front springs are worn out by how much resistance they give you when you hit the front brake or when you hit a bump. If you notice your front end is diving in the corners and you feel the bike bottom out when you hit a bump, it is possible that your front fork springs are worn out. Another sign is if you notice your motorcycle is not sitting evenly, or your motorcycle tires are not wearing evenly. These are also signs your fork springs may be worn out.
How do I know if your steering / neck bearings are loose?
The best way to check your front steering bearings is to get the front of the motorcycle off the ground. You don’t want any weight on the front of the motorcycle. Next move your motorcycle handlebars from side to side. Everything should feel smooth and consistent. If you feel any hesitation or vibration coming through the bars, your bearings might be damaged.
Also pay attention for any spots where the front end hesitates when you turn the bars side, to side; this could be a notch in the bearing race from wear. In this case you should replace your neck bearings and races.
Another way you should check to see if the bearings are loose is by grabbing the forks and trying to move them side, forward and back. If you feel them wiggle and there is play at the steering head, tighten your bearings to spec and then test them again to see if they operate smoothly. If they don’t, it is probably time to change your bearings. You can also gauge the tightness of the bearings by, with the front of the motorcycle off the ground, aligning the wheel straight forward and seeing how easily it 'flops' to the side. It shouldn't slam to the side, it should be a nice even movement."
Also pay attention for any spots where the front end hesitates when you turn the bars side, to side; this could be a notch in the bearing race from wear. In this case you should replace your neck bearings and races.
Another way you should check to see if the bearings are loose is by grabbing the forks and trying to move them side, forward and back. If you feel them wiggle and there is play at the steering head, tighten your bearings to spec and then test them again to see if they operate smoothly. If they don’t, it is probably time to change your bearings. You can also gauge the tightness of the bearings by, with the front of the motorcycle off the ground, aligning the wheel straight forward and seeing how easily it 'flops' to the side. It shouldn't slam to the side, it should be a nice even movement."
When should fork seals be replaced?
Fork seals should be replaced if you notice that they are cracked, or if you notice that they are leaking. When fork seals are leaking it could be some fluid on the fork tubes, or if they are really bad it could be actively running down the lower legs. You need fluid in your front forks for them to operate properly. The fluid is there to allow some control of the compression and rebound of the forks. It is also there to keep everything cool while the forks are in motion. If you loose too much fluid, you can seriously damage your forks, or cause handling and stability issues.
Can I ride with a leaking fork seal?
Yes, you can ride for a period of time with a leaking fork seal, but you should fix it as soon as possible. You need the fork oil to keep your forks from sustaining damage during use, and to ensure the motorcycle handles as it should. If one fork leg is losing fluid, and the other isn't, it can cause an imbalance that can lead to stability issues. Safety first!