Aftermarket Replacement Leaf Spring Fork Assembly Parkerized 44cm
Direct Front-End Production — Manufactured in our own facility with verified 44cm length and 1″ x 24 stem thread for custom springer builds.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Leaf Spring Fork Assembly |
| Finish | Parkerized |
| Stem Diameter | 1″ |
| Stem Thread | 1″ x 24 |
| Top Tree | Standard spring configuration for mounting risers |
| Overall Length | 44cm (from lever tree base to axle) |
| Axle Diameter | 3/4″ |
| Kit Contents | 1″ stem, top crown nut, 3/4″ axle, chrome acorn nuts |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Custom frames | Confirm with model and year | Verify neck dimensions for 1″ stem and hub spacing for 3/4″ axle |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Measuring Stem Thread and Axle Spacing Before Ordering
Verify the 1″ x 24 stem thread and 3/4″ axle specs against the frame.
Custom springer listings often omit overall length and stem dimensions, making it difficult to judge ride height and steering geometry before ordering. Builders might focus on the parkerized finish but overlook the exact measurements needed for the frame neck and front wheel hub. This leaf spring fork assembly motorcycle aftermarket unit requires precise dimensional checks to ensure the steering stem seats correctly and the wheel aligns within the fender. [NEED_CITE: frame neck bearing and stem thread variations across custom chassis builds]
Confirming Frame Neck Compatibility for the 1″ Stem
When sourcing a leaf spring fork assembly motorcycle aftermarket component, the steering stem diameter and thread pitch must match the frame’s head cup exactly. This unit features a 1″ stem with a 1″ x 24 thread and includes the top crown nut. If the frame neck was machined for a different pitch or diameter, the fork will not seat properly, leading to steering bind or unsafe handling. Always measure the existing stem or frame neck before finalizing the order.
Checking Front Wheel Hub Spacing for the 3/4″ Axle
The included 3/4″ axle and chrome acorn nuts dictate the front wheel hub spacing. A mismatch here means the wheel will not drop in, or it will sit off-center, causing the tire to rub against the fender or brake components. Confirm the internal width of your front hub matches the 3/4″ specification. [NEED_CITE: front hub spacing dimensions for custom springer wheels]
Understanding the 44cm Overall Length Measurement
The 44cm length is measured strictly from the lever tree base to the axle center. This specific dimension directly influences the ride height and the resulting rake and trail of the motorcycle. Shorter or longer forks will alter the steering geometry, changing how the bike handles at speed and during cornering. Do not assume this length will drop in without checking the desired geometry for your specific build.
Hidden Costs of Incorrect Fork Length and Stem Fitment
Ordering a fork without confirming the overall length often results in the front wheel rubbing hard against the fender, requiring a complete teardown to swap parts. If the 1″ x 24 stem thread is slightly off, the top tree will not secure the assembly, leaving the steering loose and dangerous. These fitment errors stall the build on the shop floor, wasting labor hours and delaying the project while waiting for a replacement. [NEED_CITE: labor hours lost to front-end fitment corrections in custom shops]
Sourcing Verified Dimensions from a Single Account
This leaf spring fork assembly motorcycle aftermarket unit is produced in our own facility, ensuring the 44cm length and parkerized finish meet our internal specifications. We supply the complete kit, including the 1″ stem, top crown nut, 3/4″ axle, and chrome acorn nuts, so you receive all necessary hardware in one shipment. Fitment is confirmed against your frame dimensions before quotation, and we accept a minimum order of one piece for custom build shops.
Documentation Provided with Your Shipment
- Fitment sheet stating applicable platforms and year ranges
- Key dimensions including 44cm fork length and 1″ stem thread
- Finish specification for parkerized components
- Quality inspection record for stem and axle dimensions
- Packing photographs showing the complete kit contents
Pre-Installation Checks for the Fork Assembly
- Verify the 1″ x 24 stem thread matches your frame neck
- Measure the 44cm length against your desired ride height
- Check the 3/4″ axle spacing against your front wheel hub
- Inspect the parkerized finish for any shipping damage
- Ensure the top crown nut and chrome acorn nuts are present
Requesting a Fitment Check for Your Build
Send your frame neck dimensions and front wheel hub spacing to verify if this 44cm leaf spring fork assembly motorcycle aftermarket unit fits your custom build. Provide photos of your existing steering stem or measurements of the head cup to ensure the 1″ x 24 thread is correct. We will confirm the fitment and supply a single piece or bulk order based on your shop’s needs.
Frequently Asked Questions
Q: How do I confirm if the 1″ stem and 44cm length fit my custom frame?
A: Measure the internal diameter and thread pitch of your frame’s head cup to ensure it matches the 1″ stem and 1″ x 24 thread. Then, check the available clearance in your frame for the 44cm length to maintain your desired ride height and steering geometry.
Q: What are the exact thread specifications for the stem and top crown nut?
A: The steering stem features a 1″ diameter with a 1″ x 24 thread pitch. The included top crown nut is manufactured to match this exact 1″ x 24 specification, ensuring it threads securely onto the stem for proper top tree clamping.
Q: Does the kit include the axle and mounting hardware?
A: Yes, the kit is supplied complete with the 3/4″ axle, the 1″ stem, the top crown nut, and the chrome acorn nuts. You receive the full hardware set required to mount the fork assembly and secure the front wheel.
Q: Can I order a single leaf spring fork assembly for a one-off build?
A: Yes, we accept a minimum order of one piece. This allows custom build shops and independent restorers to purchase a single fork assembly for a specific project without being blocked by high minimum order quantities.
Q: How do I verify the 3/4″ axle spacing matches my front wheel?
A: Measure the internal width of your front wheel hub where the axle passes through. The included 3/4″ axle must match this width exactly to ensure the wheel sits centered and the chrome acorn nuts can secure it properly without binding.