Zero Hour
Zero Hour 39mm Fork Tubes — Sportster
Zero Hour 39mm Fork Tubes — Sportster
SKU:ZH-FT39-04-BK
Review the fitment notes in the description before ordering. Running a non-stock setup? Ask us first.
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Finish your Sportster front end.
Blackout detail, gold contrast, or classic silver. Zero Hour 39mm Fork Tubes bring a coordinated finish to your Sportster build, with separate configurations for the applications below.
Choose your application → Choose your length configuration → Choose your finish.
Fitment
| Configuration | Harley-Davidson model | Years |
|---|---|---|
| 2016+ Sportster | XL883L Superlow | 2016–2020 |
| 2016+ Sportster | XL883N Iron 883 | 2016–2022 |
| 2016+ Sportster | XL1200C Custom | 2016–2020 |
| 2016+ Sportster | XL1200CA | 2016 |
| 2016+ Sportster | XL1200CB | 2016–2017 |
| 2016+ Sportster | XL1200CP | 2016 |
| 2016+ Sportster | XL1200NS Iron 1200 | 2018–2021 |
| 2016+ Sportster | XL1200V Seventy-Two | 2016 |
| Earlier low-model Sportster | XL883L | 2005–2015 |
| Earlier low-model Sportster | XL883N Iron 883 | 2009–2015 |
| Earlier low-model Sportster | XL1200N Nightster | 2007–2012 |
Iron 883 owners: choose the earlier low-model configuration for 2009–2015 or the 2016+ configuration for 2016–2022. The year split matters.
Dimensions and configuration
| Tube outside diameter | 39mm |
|---|---|
| 2016+ configuration | 630mm / approximately 24.80 inches; OEM references 45500280 / 45500281 |
| Earlier low-model configuration | Model-specific replacement for the listed applications; OEM reference 46218-05. Contact us for an end-to-end measurement when matching a custom build. |
Choose your finish
Black for a dark front end. Gold for contrasting detail. Silver for a traditional bright-metal look. The 2016+ configuration uses hard chrome in Silver, hard chrome with DLC in Black, and hard chrome with titanium nitride in Gold.
Installation
Inner tubes only—not complete fork assemblies, a cartridge kit, or a universal lowering kit. Seals, bushings, springs, cartridges, and fork oil are separate service items. Professional installation is recommended.
Match your exact model/year and the front end actually installed. Tube length is not suspension travel, and the low-model configuration does not lower every Sportster by two inches. Additional lengths must be matched to the complete suspension setup.
Fitment help
Send your motorcycle year/model and fork or cartridge details to sales@zerohourmoto.com. Product photos illustrate finish and appearance; details vary by application.
Fitment & compatibility
Fitment information is listed in the product description. Confirm your year, model, trim, and any existing modifications before ordering.
What’s included
See the product description and images for included components. Contact us before ordering if your install may require adapters, gaskets, hardware, or other supporting parts.
Installation & specifications
Professional installation is recommended when the work involves controls, braking, fuel, electrical, or safety-critical components.
Shipping, returns & support
Availability and delivery estimates are shown during checkout. Please review the store policies before installation, and contact us promptly if you need help with an order.
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