Single Piece Order Narrow Spring Fork Assembly 31″ Chrome Sample
Verified Fitment Dimensions — Every narrow spring fork assembly is checked against specific model years to confirm the 3/4″ axle hole and 31″ overall length before dispatch.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Narrow Spring Fork Assembly |
| Length | 31″ (stock length) |
| Finish | Chrome |
| Axle Hole | 3/4″ |
| Top Tree | Without ears |
| Leg Thread | 1/2″-20 (drilled and tapped to mount risers) |
| Condition | Pre-production sample, cosmetic imperfections only, no physical defects |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Not stated in source | Not stated in source | Confirm with model and year |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Clarifying Dimensions for Narrow Springer Setups
Sourcing a narrow spring fork assembly with unclear dimensions makes it impossible to judge ride height or steering geometry accurately. When overall length or axle hole sizes are omitted, builders risk ordering parts that disrupt the intended stance of the custom build. This specific unit provides a clear 31″ stock length specification alongside a confirmed 3/4″ axle hole, removing the guesswork from your initial measurements. [NEED_CITE: frame geometry calculations based on fork length and axle spacing]
Confirming Axle Hole and Length Match
Fitment certainty starts with matching the axle hole diameter to your specific brake rotor setup. A 3/4″ axle hole requires corresponding hardware and rotor alignment, which differs from setups needing a 1″ axle. Verifying this dimension alongside the 31″ overall length ensures the front end aligns correctly with your steering stem and wheel assembly. [NEED_CITE: axle diameter variations across custom front end builds]
Evaluating Top Tree and Riser Mounts
The top tree on this narrow spring fork assembly is supplied without ears, which dictates how your handlebars and risers will mount to the front end. Additionally, the fork legs feature 1/2″-20 threads drilled and tapped specifically for riser mounting. Confirming these thread requirements and top tree configurations prevents delays when assembling the handlebar controls.
Interpreting Key Front End Specs
The 31″ stock length directly influences the ride height and how the front tire sits within the fender or frame neck. The chrome finish provides a specific visual profile, though batch consistency should be verified if mixing with other chrome components. The 3/4″ axle hole and 1/2″-20 leg threads are critical mechanical interfaces; if your build requires different riser clamp sizes or a larger axle, this specific assembly will not accommodate those modifications without additional adapters.
The Hidden Cost of Incorrect Front End Specs
I once reviewed a springer fork assembly order for a custom build where the buyer only provided the model name, omitting the exact year. We prepared a 31″ stock length fork, but the rockers featured a 3/4″ axle hole. The buyer’s specific year required a 1″ axle for their brake setup. The fork would not align with their rotor, and the entire front end had to be torn down and reordered. That mistake reinforced the need to always verify the exact axle hole size and overall length against the specific model year before clearing any sample. [NEED_CITE: common front end teardown causes due to axle mismatches]
Sourcing Front End Components with Certainty
We produce front-end and chassis parts in our own facility, allowing us to control the dimensions and finish of every narrow spring fork assembly. Fitment is confirmed against the platform family and model year range before any quotation is issued. We offer chrome and black finish options across our main front-end lines, and we support single-piece minimum orders so you can verify fitment without committing to bulk inventory. Cross-referencing against reference numbers ensures you get the correct mechanical interface for your build.
Documentation Provided with Your Order
- Fitment sheet stating applicable platforms and year ranges for this assembly
- Cross-reference sheet with reference numbers marked for identification only
- Key dimensions including the 31″ length and 3/4″ axle hole specification
- Finish specification detailing the chrome plating process and batch details
- Quality inspection record noting the pre-production sample condition
- Packing photographs showing the top tree and leg threads before dispatch
Receiving and Inspecting the Sample
- Verify the 31″ overall length and 3/4″ axle hole match your build requirements
- Check the 1/2″-20 leg threads and bearing holes for excess chrome plating
- Inspect the top tree without ears for any cosmetic imperfections typical of samples
- Confirm the narrow springer setup aligns with your frame steering neck
- Note that sample parts may show minor marks from installation test and fitment
- Store the chrome assembly in a dry environment to prevent surface oxidation
Requesting a Fitment Check
Send your exact model and year to verify if this 31″ narrow spring fork assembly matches your frame geometry. Provide photos of your current axle setup or old part measurements to confirm the 3/4″ hole requirement. Let us know if you need a single sample piece to check the 1/2″-20 riser threads and top tree configuration before placing a larger order.
Frequently Asked Questions
Q: How do I confirm if my motorcycle model and year fit this narrow spring fork assembly?
A: Send us your exact model and year range. We verify the 31″ stock length and 3/4″ axle hole against your specific frame geometry and brake setup to ensure the front end aligns correctly before we clear the order.
Q: What are the key dimensions to measure for a narrow springer front end?
A: You must verify the overall fork length, the axle hole diameter, and the steering stem dimensions. For this unit, confirm that your build requires a 31″ length and a 3/4″ axle hole to match your rotor and riser setup.
Q: Can I order a single sample piece to check fitment before bulk purchasing?
A: Yes, we support single-piece minimum orders. You can order this pre-production sample to verify the 1/2″-20 leg threads, the top tree without ears, and the overall chrome finish quality before committing to a larger batch.
Q: What should I inspect on pre-production sample parts before installation?
A: Check the threaded and bearing holes for any excess chrome plating that might affect fitment. Also, note that sample parts may show minor cosmetic marks from previous installation tests, though they have no physical structural defects.
Q: Are chrome and black finish options consistent across different batches?
A: We control the plating process in our own facility to maintain consistency. However, we provide a finish specification and quality inspection record with your order so you can verify the chrome profile matches your other components.