Aftermarket Replacement 20″ Inline Spring Fork Kit Black
Consistent finish across batches — This 20″ inline spring fork kit features a black body with chrome springs and top triple tree, verified for visual match before dispatch.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Inline Spring Fork Kit |
| Finish | Black body with chrome springs and chrome top triple tree |
| Length | 20″ |
| Thread | 1/2″ x 20 (legs) |
| Axle Assembly | 3/4″ (included) |
| Brake Tab | Right side |
| Rocker Offset | Right rocker is not offset |
| Bearing | 1″ taper bearing kit (available separately) |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Confirm with model and year | Confirm with model and year | Use post risers with stud to top of rear fork legs; 1″ taper bearing kit available separately; 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.
Judging Ride Height When Over-Stock Lengths Lack Geometry Data
Measure the 20″ overall length against your frame neck and desired axle position before ordering.
Springer forks offered over stock without clear overall length or geometry details make it hard to judge ride height and steering setup [NEED_CITE: frame geometry and triple tree spacing variations across custom builds]. When the 20″ inline spring fork kit arrives, the spool wheel must center and the custom brake tab must align with the caliper, which relies entirely on matching the 3/4″ axle spacing and right-side brake tab to your specific wheel and brake setup.
Verifying Triple Tree Width and Axle Spacing
A 20″ inline spring fork kit changes the front-end profile, but the triple tree width and 3/4″ axle spacing dictate whether your custom wheel will actually fit between the legs. We physically measure every tree width and test-fit the axle assembly before clearing any over stock springer for dispatch. This ensures the spool wheel centers correctly and prevents the custom brake tab from missing the caliper entirely.
Checking Brake Tab Alignment and Rocker Offset
The right-side brake tab on this 20″ inline spring fork kit must align perfectly with your chosen caliper mount, while the right rocker being non-offset affects how the spring and leg interact under load [NEED_CITE: rocker offset and spring rod clearance in custom springer setups]. Confirming these dimensions against your specific wheel and brake setup prevents costly返工 once the front end is fully assembled.
Interpreting the 20″ Length and 1/2″ x 20 Leg Threads
The 20″ overall length directly impacts your ride height and steering geometry, so it must be measured against your frame neck and desired axle position. The 1/2″ x 20 leg threads determine which post risers will thread directly into the legs, requiring you to use post risers with a stud to the top of the rear fork legs for proper handlebar mounting. The included 3/4″ axle assembly must be paired with spacers to center the wheel, making exact thread and axle verification critical for custom builds.
The Hidden Cost of Unverified Over-Stock Dimensions
Ordering a 20″ over stock inline spring fork kit without verifying the triple tree width and axle spacing often results in the spool wheel failing to center and the custom brake tab missing the caliper [NEED_CITE: common fitment failures in over stock springer kits due to unverified dimensions]. This forces the bike to sit on the lift while you source new spacers or modify brake tabs, delaying the build and adding unexpected machining costs.
Why Source This Front-End Kit From Us
We produce front-end and chassis parts in our own facility, ensuring the black finish and chrome springs on this 20″ inline spring fork kit are checked for consistency before dispatch. Our front-end depth means we supply complete springer assemblies and multiple over-stock lengths in one catalogue, backed by fitment confirmed against platform and year range before quotation. We cross-reference against Harley-Davidson OEM numbers marked reference only, and we support a minimum order from one piece for custom builders.
Documentation Provided
- Fitment sheet stating applicable platforms and year ranges for this 20″ kit
- Cross-reference sheet with OEM numbers marked reference only
- Key dimensions including 20″ fork length and 1/2″ x 20 thread size
- Finish specification for black body and chrome springs
- Quality inspection record verifying axle assembly and brake tab alignment
Pre-Installation Checks
- Verify the 20″ overall length against your frame geometry and desired ride height
- Confirm the 3/4″ axle assembly and right-side brake tab match your custom wheel
- Check if the 1″ taper bearing kit is needed separately for your steering neck
- Inspect the black finish and chrome springs for any shipping damage before assembly
- Ensure the 1/2″ x 20 leg threads are clean and undamaged before threading risers
Send Your Details for a Fitment Check
Provide your model and year, along with any old part numbers or photographs, so we can verify if this 20″ inline spring fork kit matches your frame geometry. Let us know your required finish, quantity, and whether you need a sample for fitment confirmation before placing a bulk order.
Frequently Asked Questions
Q: How do I confirm if this 20″ fork kit fits my custom frame geometry?
A: You must measure your frame neck and desired axle position to verify the 20″ overall length. Check the triple tree width and 3/4″ axle spacing to ensure your custom wheel will center correctly between the legs. We confirm fitment against your platform and year range before quotation.
Q: What dimensions should I measure to ensure the axle and brake tab align?
A: Measure the distance between your fork legs to match the 3/4″ axle assembly included in the kit. Verify the right-side brake tab position against your specific caliper mount. You may need to use spacers for the axle to center the wheel properly.
Q: Does the kit include the taper bearing or do I need to order it separately?
A: The 1″ taper bearing kit is available separately and is not included in this 20″ inline spring fork kit. You must order it separately if your steering neck requires it. We provide key dimensions to help you select the correct bearing kit.
Q: Can I order a single kit for a custom build?
A: Yes, we support a minimum order from one piece, making it easy for custom builders to order a single 20″ inline spring fork kit for a specific project. We also offer sample supply for fitment confirmation before you commit to bulk orders.