Inline Spring Fork Kit 20″ Black – Fitment Checked
Consistent Finish And Fitment — This 20″ inline spring fork kit pairs a black finish with chrome springs and a machined triple tree, verified for your custom build geometry.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Inline Spring Fork Kit |
| Length | 20″ |
| Finish | Black with chrome springs |
| Top Triple Tree | Machined chrome design without ears |
| Axle Assembly | 3/4″ (included) |
| Legs Thread | 1/2″ x 20 |
| Rockers | Right rocker is not offset |
| Brake Tab | Located on the right |
| Steering Head Bearing | 1″ taper bearing kit (available separately) |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Custom builds | Confirm with model and year | For custom brake and spool wheel installation. Use spacers for axle as required to center wheel. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why Rocker Offset Matters For Spool Wheels
Right rocker is not offset with the brake tab located on the right.
When sourcing a 20″ inline spring fork kit for a custom chopper, builders often assume the rockers follow a standard offset pattern. I once saw a builder order this exact setup for a custom spool wheel, only to find the brake tab completely missed the alignment because the right rocker lacked the expected offset. This 20″ inline spring fork kit is designed specifically with a non-offset right rocker and a right-side brake tab to match custom brake setups. Verifying this geometry before installation prevents the wheel from sitting off-center or the caliper from failing to align with the rotor [NEED_CITE: custom frame geometry and brake caliper alignment standards].

Verifying Axle Spacing For Custom Wheels
Installing a 20″ inline spring fork kit requires precise axle spacing to ensure the wheel sits perfectly centered between the legs. The included 3/4″ axle assembly provides the foundation, but custom spool wheels often demand specific spacer thicknesses to achieve the correct tracking. Without these spacers, the wheel may bind against the fork legs or sit too far to one side, ruining the stance of the build. Always measure the hub width of your custom wheel and calculate the necessary spacer stack before tightening the axle.
Matching Triple Tree Dimensions To Frame Necks
The machined chrome top triple tree on this 20″ inline spring fork kit features a design without ears, which directly impacts how the handlebars and risers mount to the front end. Because it lacks ears, you must use post risers with a stud connecting to the top of the rear fork legs to secure the steering assembly. This specific triple tree design requires a 1″ taper bearing kit for the steering head, which is available separately. Failing to source the correct bearing kit or mismatching the stem diameter will result in loose steering or damaged neck cups [NEED_CITE: steering head bearing dimensions across custom frame necks].

The Cost Of Ignoring Brake Tab Placement
Ordering a front end without confirming the brake tab placement is a costly mistake in custom fabrication. If the brake tab is on the wrong side, or if the rocker offset does not match your rotor setup, the caliper will not align, forcing you to machine new tabs or return the entire assembly. This 20″ inline spring fork kit clearly states the right rocker is not offset and the brake tab is located on the right. Ignoring these details leads to wasted fabrication hours and delayed build timelines, especially when the bike is already on the lift waiting for the front end [NEED_CITE: brake caliper alignment issues in custom springer builds].
Sourcing Front End Depth From One Account
We produce this 20″ inline spring fork kit in our own facility, ensuring the black finish and chrome components are checked for consistency before they leave the factory. You can order a single piece for a one-off custom build without worrying about minimum order quantities blocking your project. Every kit is verified against the specified dimensions, and we provide a fitment sheet confirming the 20″ length and axle specs before dispatch. This approach keeps your custom springer project moving forward with parts that actually match your engineering requirements.
Documentation Provided With Your Shipment
- Fitment sheet stating the 20″ length and custom brake application notes.
- Cross-reference sheet with dimensions marked reference only.
- Key dimensions including fork length over stock and axle assembly size.
- Finish specification detailing the black legs and chrome springs.
- Quality inspection record covering the machined triple tree and rocker offset.
Checks Before Installation And Assembly
- Verify the 3/4″ axle assembly and required spacers are present to center the wheel.
- Confirm the 1″ taper bearing kit is sourced separately for your steering head.
- Check that the right rocker is not offset and the brake tab is on the right.
- Inspect the black finish and chrome springs for any shipping damage or plating flaws.
- Ensure post risers with studs are ready for the top triple tree without ears.
- Have a qualified technician verify frame neck dimensions before pressing bearings.
Send Your Build Details For Verification
Send your model and year, along with photos of your custom spool wheel and frame neck, for a fitment check. Provide the hub width and rotor placement so we can confirm if the 20″ inline spring fork kit matches your geometry. Let us know if you need a sample for fitment confirmation before placing a bulk order for your shop.
Frequently Asked Questions
Q: How do I confirm my custom frame geometry fits a 20″ over stock springer?
A: Measure your frame neck width and steering stem diameter to ensure compatibility with the 1″ taper bearing kit. Compare the 20″ overall length against your desired ride height and rake. We provide a fitment sheet detailing these dimensions to help you verify the geometry before fabrication.
Q: What axle spacers are needed to center the wheel on this kit?
A: The required spacer thickness depends entirely on the hub width of your custom spool wheel. The kit includes a 3/4″ axle assembly, but you must measure your wheel hub and calculate the spacer stack needed to center it perfectly between the fork legs.
Q: Is the 1″ taper bearing kit included or sold separately?
A: The 1″ taper bearing kit is available separately and is not included in the fork kit. You must source this bearing kit to match your specific frame neck dimensions and ensure proper steering head fitment for the machined chrome top triple tree.
Q: Can I order a single springer fork kit for a one-off custom build?
A: Yes, we support a minimum order of one piece. You can order a single 20″ inline spring fork kit for your custom chopper project without meeting high volume requirements. We also offer sample supply for fitment confirmation before you commit to larger orders.
Q: How do I verify the right rocker offset and brake tab placement for my wheel?
A: This kit features a right rocker that is not offset, with the brake tab located on the right side. Compare this layout directly against your custom spool wheel rotor placement and caliper mount to ensure they align perfectly before final assembly.