Black Inline Spring Fork Assembly 22″ 4″ Over Stock – Fitment Checked Custom Springer
In-house Springer Production — Every inline spring fork assembly for custom springer is manufactured in our own facility, ensuring strict dimensional control for accurate fitment and geometry alignment.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Inline Spring Fork Assembly |
| Finish | Black (parkerized springs, rockers, front and rear leg) |
| Overall Length | 22″ (4″ over stock) |
| Stem Type | 1″ inline stem |
| Rocker Mount | Offset outside mount |
| Construction | Electric welded and brazed |
| Measurement Method | From the top of the rear leg (tube) to the front axle center line |
| Kit Contents | Inner and outer springs, front and rear legs, 1″ inline stem, offset outside mount rockers, studs and bushings, spring rods with bushings |
| Not Included | Top clamp, neck races, cone nut |
Fitment Verification
| Platform | Year Range | Notes |
|---|---|---|
| Not stated in source | Confirm with model and year | Replicas of stock units; 4″ over stock length; 22″ assembly. Verify 1″ stem spacing and overall length against specific frame geometry. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Resolving Geometry Uncertainty in Over-Stock Springers
Clarifying overall length and stem dimensions prevents ride height and steering geometry errors.
Springer forks offered “over stock” often lack clear overall length or measurement methods, making it hard to judge ride height and steering geometry before purchase. A 22-inch assembly alters the rake and trail significantly compared to stock units [NEED_CITE: frame geometry specifications by model year]. If the 1-inch inline stem spacing does not match the specific frame’s triple tree, the entire front end alignment fails. We verify these dimensions against the exact model year before quoting to ensure the inline spring fork assembly for custom springer matches your build requirements.
Verifying Stem and Triple Tree Alignment
Before installing this inline spring fork assembly for custom springer, the 1-inch inline stem diameter must be verified against your triple tree bore. An incorrect stem fitment forces modifications that compromise steering stability. We check this dimension during the quotation phase to prevent mismatched components from reaching your shop.
Confirming Overall Length and Ride Height
The 22-inch overall length, measured from the top of the rear leg to the front axle center line, directly impacts the bike’s stance and steering geometry [NEED_CITE: rake and trail calculations for custom front ends]. A 4-inch over stock setup changes the visual profile and handling characteristics. Confirming this length against your frame’s intended ride height ensures the final build matches your design specifications.
Interpreting Key Dimensions for Custom Builds
Understanding the 22-inch overall length and 4-inch over stock specification is critical for custom builds. This measurement dictates the final ride height and alters the steering geometry, changing the rake and trail compared to stock configurations. The 1-inch inline stem must match the triple tree bore exactly; any deviation requires frame modification. Additionally, the offset outside mount rockers are designed for specific lug bolt type drum and mechanical front brake drum compatibility. Misinterpreting these dimensions leads to improper wheel alignment and brake component interference.
The Hidden Cost of Unverified Front-End Dimensions
Ordering a springer front end without specifying the exact year and verifying stem dimensions often leads to complete assembly failure. A builder once ordered a 22-inch over-stock length without checking the 1-inch inline stem spacing against his specific frame, completely throwing off the ride height and steering geometry [NEED_CITE: steering geometry tolerances for custom choppers]. The bike sat on the lift for weeks while the frame had to be reworked. Unverified fitment data passed down through catalogs compounds these errors, resulting in wasted labor and delayed project completion.
Sourcing from a Dedicated Front-End Specialist
We manufacture this inline spring fork assembly for custom springer in our own facility, guaranteeing dimensional consistency across every batch. Our front-end depth allows us to supply complete assemblies and early parts under one account, simplifying your procurement. The black parkerized finish is applied in-house, ensuring color consistency between the springs, rockers, and legs. We support custom builders with a minimum order from one piece, accommodating single-bike projects without bulk requirements. Every quotation includes a fitment check against your specific platform and year range.
Documentation Provided with Your Shipment
- Fitment sheet stating applicable platforms and year ranges verified for this assembly
- Key dimensions sheet confirming 22-inch length and 1-inch stem diameter
- Finish specification detailing the black parkerized treatment process
- Quality inspection record documenting weld and brazing checks
- Packing photographs showing the complete kit contents before dispatch
Receiving and Pre-Installation Checks
- Verify the kit includes inner and outer springs, legs, stem, rockers, studs, bushings, and spring rods
- Confirm the 1-inch inline stem diameter matches your triple tree bore before assembly
- Measure the 22-inch overall length from the top of the rear leg to the front axle center line
- Inspect the black parkerized finish on all components for consistency and surface defects
- Ensure top clamp, neck races, and cone nut are sourced separately as they are not included
- Store the assembly in a dry environment to protect the parkerized finish before installation
Requesting a Fitment Check and Quotation
Send your exact model and year, along with a photograph or measurements of your current triple tree, to initiate a fitment check. Specify the required black parkerized finish and confirm if you need a sample assembly for trial fitting before placing a bulk order. We will verify the 22-inch length and 1-inch stem compatibility against your frame geometry and provide a detailed quotation.
Frequently Asked Questions
Q: How is the 22-inch fork length measured on this inline spring assembly?
A: The overall length is measured from the top of the rear leg tube down to the center line of the front axle. This specific measurement method ensures accurate calculation of ride height and steering geometry changes associated with the 4-inch over stock configuration.
Q: What components are included in the fork kit and what must be sourced separately?
A: The kit includes inner and outer springs, front and rear legs, a 1-inch inline stem, offset outside mount rockers, studs, bushings, and spring rods with bushings. The top clamp, neck races, and cone nut are not included and must be sourced separately for complete assembly.
Q: How do I confirm the 1-inch inline stem and offset rockers fit my custom frame?
A: You must verify that your triple tree bore exactly matches the 1-inch inline stem diameter. Additionally, confirm that the offset outside mount rockers align with your specific interchangeable wheel and mechanical front brake drum setup to ensure proper clearance and function.
Q: Can I order a single assembly for a one-off custom build?
A: Yes, we support custom builders and independent shops by offering a minimum order of just one piece. This allows you to procure a complete inline spring fork assembly for custom springer projects without meeting high volume requirements, ideal for one-off chopper or bobber builds.
Q: How do you ensure finish consistency between black parkerized batches?
A: All parkerized finishing on the springs, rockers, and legs is processed in our own facility under controlled conditions. This centralized production ensures that the black finish remains consistent across different batches, preventing visible color mismatches when parts are fitted side by side on the motorcycle.