Black Inline Spring Fork Assembly 27″ Stock Length – Fits FXSTS Springer Softail
Precision Front-End Manufacturing — This inline spring fork assembly for FXSTS is produced in-house to ensure exact stock-length dimensions and consistent black finish with chrome spring contrast.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Inline Spring Fork Assembly |
| Finish | Black finish with chrome spring |
| Length | 27″ from rocker stud to bottom of top tree; 30″ from axle to bottom of top tree |
| Neck Bearing Size | 1″ |
| Kit Contents | Rockers, chrome spring, brake caliper brackets, 1″ neck bearings, dust cover, top tree, shock, brake arm and bearings (assembled) |
| Exclusions | Axle not included |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| FXSTS Springer Softail | Confirm with model and year | Verify 1″ neck bearing size and stock-length geometry against your specific frame. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Avoiding Geometry Errors with the Correct inline spring fork assembly for fxsts
Exact stock-length dimensions prevent rake and trail miscalculations.
When sourcing an inline spring fork assembly for fxsts, buyers often assume a stock-length unit will automatically match their frame geometry without verifying the exact measurement points. I once supplied a stock-length assembly for an FXSTS Springer Softail where the buyer only mentioned the model without specifying the overall length requirement. The 27-inch measurement from the rocker stud to the bottom of the top tree was critical for their specific build, and any deviation would ruin the rake and trail, ultimately causing the fender clearance to fail. Confirming these exact dimensions and tree spacing before processing any order ensures the steering geometry remains intact and the front end sits correctly on the frame [NEED_CITE: factory service manual specifications by model year].
Verifying Platform and Year Range Compatibility
Fitment certainty starts with confirming the exact platform and year range before quoting an inline spring fork assembly for fxsts. Different model years within the Springer Softail family may require specific steering stem dimensions or tree spacing that are not immediately obvious from the model name alone. By cross-referencing the 1″ neck bearing size and the 27-inch rocker stud measurement against your frame specifications, we eliminate the guesswork that leads to incorrect parts arriving at the shop. This fitment-led approach ensures that every assembly matches the intended chassis requirements without requiring on-the-fly modifications [NEED_CITE: steering stem diameter changes across model years for this platform].
Understanding Stock-Length Dimensions and Tree Spacing
The 27-inch length from the rocker stud to the bottom of the top tree, and the 30-inch length from the axle to the bottom of the top tree, define the stock geometry for this inline spring fork assembly for fxsts. These specific measurements dictate the ride height and how the front tire aligns with the fender mounts. If an assembly is even slightly off from these stock lengths, it alters the trail and affects how the bike handles at low speeds. Providing these exact dimensions in the specification sheet allows builders to measure their existing setup or frame jig to confirm compatibility before the bulk order is placed.
The Hidden Cost of Incorrect Fork Lengths
Ordering a front end without confirming the exact overall length often results in the bike sitting on the shop floor waiting for replacement parts. When the fork length is wrong, the fender will not clear the tire, and the steering head may bind due to incorrect tree spacing or neck bearing alignment. This forces the builder to disassemble the front end, source a different length, and redo the entire assembly process, wasting labor hours and delaying the build. Verifying the 27-inch rocker stud measurement and the 1″ neck bearing size upfront prevents these costly delays and ensures the project moves forward smoothly [NEED_CITE: frame jig measurements for springer front ends].
Sourcing from a Dedicated Front-End Specialist
We manufacture our springer front ends and fork parts in-house, which allows us to control the exact dimensions and finish consistency of every inline spring fork assembly for fxsts. Our catalogue offers deep front-end coverage, including complete stock-length assemblies and various over-stock options, all available in black or chrome finishes. We support a one-piece minimum order, making it easy for shops to request a sample unit for fitment confirmation before committing to a larger batch. Every quotation includes a fitment sheet that confirms the applicable platforms and year ranges based on the specific model and year you provide.
Documentation Provided with Your Order
- Fitment sheet listing each year range this part was checked against
- Cross-reference sheet with OEM numbers marked reference only for identification
- Key dimensions including fork length over stock and neck bearing size
- Finish specification detailing the black body and chrome spring contrast
- Quality inspection record for the specific batch produced
- Packing photographs showing the assembled kit contents and protective packaging
Receiving and Inspecting the Assembly
- Verify the kit includes rockers, chrome spring, brake caliper brackets, 1″ neck bearings, dust cover, top tree, shock, brake arm, and bearings.
- Confirm the axle is not included and must be sourced separately for your specific build.
- Measure the 27″ rocker stud to top tree distance to ensure it matches your frame requirements.
- Check the 1″ neck bearings and threaded holes for excess plating before installation.
- Inspect the black finish and chrome spring for any cosmetic imperfections upon arrival.
- Store the assembly in a dry environment to prevent corrosion on the exposed metal surfaces.
Requesting a Fitment Check and Quote
Send your specific FXSTS model and year along with a photograph or measurements of your current steering stem to initiate a fitment check. Let us know if you require a single sample unit to verify the 27-inch length and finish quality before placing a bulk order. We will respond with a fitment sheet, cross-reference data, and a quotation tailored to your exact chassis requirements.
Frequently Asked Questions
Q: How do I confirm my FXSTS model year is compatible with this stock-length assembly?
A: Provide your specific FXSTS model and year so we can verify the 1″ neck bearing size and 27-inch rocker stud measurement against your frame. We will generate a fitment sheet confirming compatibility before you place an order, ensuring the steering geometry matches your build requirements.
Q: What dimensions should I measure to verify the 27″ and 30″ fork lengths on my bike?
A: Measure from the center of the rocker stud to the bottom of the top tree to confirm the 27″ length, and from the axle center to the bottom of the top tree for the 30″ length. Comparing these exact points ensures the inline spring fork assembly for fxsts will maintain correct ride height and fender clearance.
Q: Which components are included in the assembly and do I need to buy the axle separately?
A: The kit includes rockers, chrome spring, brake caliper brackets, 1″ neck bearings, dust cover, top tree, shock, brake arm, and bearings, fully assembled. The axle is explicitly excluded from this kit and must be sourced separately to match your specific wheel and brake setup.
Q: Can I order a single sample unit to check fitment and cosmetic finish before bulk purchasing?
A: Yes, we support a one-piece minimum order for fitment confirmation. Sample parts are pre-production units, so you should check threaded and bearing holes for excess plating before installation. This allows you to verify the black finish, chrome spring contrast, and exact dimensions on your frame.
Q: How to handle excess plating in threaded and bearing holes on pre-production sample parts?
A: Since sample parts are pre-production units with cosmetic imperfections only, inspect all threaded holes and the 1″ neck bearing surfaces carefully. Clean out any excess plating using appropriate taps or reamers to ensure smooth assembly and proper bearing fitment before mounting the fork to the frame.