Black Leaf Spring Fork Assembly 44cm – Fits Custom Chopper Builds
Cross-Referenced Fitment — Every leaf spring fork assembly is checked against platform dimensions and year ranges before quotation.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Leaf Spring Fork Assembly |
| Finish | Black |
| Length | 44cm (lever tree base to axle) |
| Stem Diameter | 1″ |
| Stem Thread | 1″ x 24 |
| Axle Diameter | 3/4″ |
| Kit Contents | 1″ stem, top crown nut, 3/4″ axle, chrome acorn nuts, welded headlamp brackets |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Custom chopper builds | Confirm with model and year | Verify neck and triple tree requirements against the 44cm length and 1″ x 24 stem thread. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why Overall Length and Stem Thread Matter for Your Leaf Spring Fork Assembly
Missing dimensions ruin ride height and steering geometry.
Custom springer listings often omit overall length and stem thread details, making it difficult to judge ride height or ensure the top tree accepts your chosen risers. I have seen builds where an unverified length completely altered the rake, leaving the bike sitting wrong and steering geometry totally off [NEED_CITE: frame geometry calculations for custom springer front ends]. When the stem thread does not match the top tree, the assembly simply will not seat, forcing a return and delaying the build.
Verifying Stem Thread and Crown Nut Compatibility
When sourcing a leaf spring fork assembly for custom chopper builds, the 1″ stem with a 1″ x 24 thread must align perfectly with your top tree. The included top crown nut secures the assembly, but if the thread pitch is incorrect, it will cross-thread or fail to tighten. Always measure your existing stem or check the triple tree specifications before ordering to ensure the 1″ x 24 thread matches your frame’s steering head requirements.
Checking Axle Spacing and Headlamp Bracket Alignment
The 3/4″ axle included in this kit determines the front wheel hub spacing. If your custom wheel is built for a different axle diameter, the fork will not mount correctly. Additionally, the welded headlamp brackets are positioned specifically for bottom mount headlamps. You must verify that the bracket height and spacing align with your chosen headlamp housing, as modifying welded brackets after the fact compromises the front end structure [NEED_CITE: welding and structural integrity guidelines for motorcycle front ends].
Interpreting the 44cm Overall Length
The 44cm length, measured from the lever tree base to the axle, directly impacts your custom frame’s rake and trail. A longer or shorter fork changes how the bike handles and sits on the ground. This measurement is critical for planning your ride height and ensuring the front fender clears the tire. Always compare this 44cm dimension against your frame’s designed springer length to maintain the intended geometry.
The Hidden Cost of Unverified Front End Dimensions
Ordering a springer front end without confirming the stem thread or overall length often leads to the bike sitting idle on the lift. If the 1″ x 24 thread does not match your triple tree, you cannot install the fork. If the 44cm length is wrong for your frame, the rake is ruined. Furthermore, if the kit is missing the 3/4″ axle or crown nut, the build halts until replacements arrive. These fitment errors cause severe delays and extra shipping costs for custom shops.
Why Source This Leaf Spring Fork Assembly Here
We manufacture our own springer front ends, ensuring the 44cm length and black finish are consistent across batches. Every leaf spring fork assembly is measured for stem thread and axle spacing before it leaves our facility. We confirm fitment against your custom frame’s platform and year range prior to quotation. You can order a single piece for a one-off build without facing minimum order blocks. We also provide a cross-reference sheet to help you verify dimensions against your existing parts.
Documentation Provided with Your Order
- Fitment sheet stating applicable platforms and year ranges for the 44cm length
- Key dimensions document detailing the 1″ x 24 stem thread and 3/4″ axle
- Finish specification for the black coating to ensure batch consistency
- Packing photographs showing the included top crown nut and chrome acorn nuts
- Quality inspection record verifying the welded headlamp bracket placement
###收货与装车前核对 Checklist
- Verify the kit includes the 1″ stem, top crown nut, 3/4″ axle, and chrome acorn nuts.
- Measure the 44cm length from the lever tree base to the axle to confirm ride height.
- Check the 1″ x 24 stem thread against your top tree before attempting installation.
- Inspect the black finish for consistency and ensure the welded headlamp brackets are straight.
- Have a qualified technician verify the 3/4″ axle spacing matches your front wheel hub.
- Store the leaf spring fork assembly in a dry environment to protect the black finish.
Send Your Details for a Fitment Check
To ensure this leaf spring fork assembly fits your custom chopper, send us your frame details and year. Provide a photograph of your current top tree or a measurement of the stem thread. Let us know if you need a sample for fitment confirmation before placing a bulk order. We will reply with a fitment sheet and cross-reference details.
Frequently Asked Questions
Q: How do I confirm if this leaf spring fork assembly fits my custom frame geometry?
A: You must measure your frame’s designed springer length and compare it to the 44cm overall length. Additionally, verify that your triple tree accepts a 1″ stem with a 1″ x 24 thread. We provide a fitment sheet detailing these dimensions to help you check against your specific custom chopper build before dispatch.
Q: What key dimensions should I measure when replacing a custom springer front end?
A: You need to check the overall length from the lever tree base to the axle, which is 44cm for this unit. Measure your stem diameter and thread pitch to ensure it matches the 1″ x 24 specification. Also, verify the axle diameter is 3/4″ to match your front wheel hub spacing.
Q: Does the kit include the axle and mounting hardware?
A: Yes, the leaf spring fork assembly kit includes the 3/4″ axle, a 1″ stem, a top crown nut, and chrome acorn nuts. The welded headlamp brackets for bottom mount headlamps are also integrated. All necessary hardware for the front end mounting is included in the package.
Q: Can I order a single leaf spring fork assembly for a one-off custom build?
A: Yes, we support single piece orders for custom builders working on one-off projects. There is no minimum order quantity blocking your purchase. We will still verify the fitment against your frame requirements and provide the necessary dimension documentation before dispatching the single unit.
Q: How do you ensure finish consistency for the black coated parts?
A: We control the finishing process in our own facility to maintain consistency between batches. The black coating specification is documented and checked during our quality inspection. This ensures that the finish on your leaf spring fork assembly matches the expected appearance, avoiding visible differences when fitted.