Chrome Forged Inline Top Triple Tree – Fits Custom Spring Forks
In-house front-end production — Every inline top triple tree for custom spring forks is machined in our own facility, ensuring steering stem dimensions and ear spacing match your exact platform specifications.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Inline Top Triple Tree |
| Finish | Chrome |
| Material | Forged |
| Design | Inline with ears |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Custom Spring Forks | Confirm with model and year | Verify steering stem diameter and ear spacing for your specific fork length. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why Ear Spacing and Stem Length Dictate Your Springer Build
An inline top triple tree for custom spring forks fails when the mounting ears do not align with the fork legs.
Builders often assume all triple trees share the same ear spacing, but custom springer setups vary wildly depending on whether the fork is stock length or extended. If the distance between the mounting holes is off by even a fraction of an inch, the fork legs will bind or sit at an incorrect angle [NEED_CITE: springer fork geometry and mounting dimensions]. This forces the builder to either machine the ears or wait weeks for a replacement, stalling the entire build.

Verifying Steering Stem Compatibility
Before ordering an inline top triple tree for custom spring forks, you must confirm the steering stem diameter and neck length. The stem must slide smoothly through the frame’s neck bearings without excessive play. If the stem is too thick, it will not seat; if it is too thin, the steering will wobble dangerously. Always cross-reference the stem dimensions against your frame’s steering head specifications.
Checking Ear Alignment for Fork Legs
The inline design with integrated ears requires precise alignment with the spring fork legs. Measure the exact distance between the mounting holes on your fork legs and compare this to the triple tree. Misalignment here prevents the axle and brake mounts from sitting square, which compromises the entire front-end assembly [NEED_CITE: front-end alignment and ear spacing tolerances].
Understanding Forged Construction and Chrome Finish
This unit is forged, providing the structural rigidity required to handle the stresses of a springer front end. The chrome finish is applied to offer consistent batch-to-batch appearance, ensuring it matches other chrome front-end components. Because finish consistency varies between batches across the industry, we control the plating process to maintain a uniform look on your custom build.

The Hidden Cost of Unverified Front-End Dimensions
Ordering a triple tree without confirming the exact platform and fork length leads to costly delays. We have seen parts sit on workbenches for weeks because the hole distances simply did not align with the custom risers or fork legs. When a part is meant for a stock setup but the bike runs an over-stock springer, the steering stem dimensions and ear spacing are completely different. This mismatch means the bike cannot be assembled, and the builder must start the sourcing process over.
Sourcing Front-End Components with Certainty
We produce front-end and chassis parts in our own facility, allowing us to verify every dimension before the part leaves our shop. Our catalogue offers deep front-end coverage, meaning you can source your triple tree alongside your fork legs and springs from a single account. We offer chrome and black finish options on our main front-end lines to match your build’s aesthetic. You can order a single piece, which is ideal for custom shops building one-off bikes without needing to meet high minimums.
Documentation Provided with Your Order
- Fitment sheet stating applicable platforms and year ranges for your specific triple tree
- Key dimensions including steering stem diameter, neck length, and ear spacing
- Finish specification detailing the chrome plating standard
- Quality inspection record verifying the forged construction and mounting holes
- Packing photographs showing the exact part and finish before dispatch
Receiving and Inspecting Your Triple Tree
- Verify the steering stem diameter and neck length match your frame’s steering head.
- Measure the distance between the mounting ears to ensure alignment with your fork legs.
- Inspect the chrome finish for consistency and check for any plating defects on the forged surface.
- Confirm the inline design matches your riser and handlebar mounting requirements.
- Store the triple tree in a dry environment to prevent corrosion before installation.
Requesting a Fitment Check
Send us your model and year, along with a photograph or measurements of your current steering stem and fork leg spacing. We will verify the exact platform and length to ensure this inline top triple tree for custom spring forks fits your build perfectly. Let us know if you require a sample for fitment confirmation before placing a larger order.
Frequently Asked Questions
Q: How do I measure the steering stem diameter for my custom springer?
A: Use a digital caliper to measure the outer diameter of the existing steering stem or the inner diameter of the frame’s neck bearing. Ensure you measure the smooth, unthreaded portion of the stem. Compare this exact measurement to the stem diameter listed in our fitment sheet to guarantee the new inline top triple tree for custom spring forks will seat correctly without binding.
Q: What dimensions must I check to ensure the ears align with my fork legs?
A: You need to measure the center-to-center distance between the mounting holes on your spring fork legs. Compare this measurement directly to the ear spacing on the triple tree. If the distances do not match exactly, the fork legs will not mount square, which affects the front-end geometry and prevents proper assembly of the brake and axle hardware.
Q: Can I order a single top triple tree for a one-off custom build?
A: Yes, we support single-piece orders for custom shops and individual builders. There is no minimum order quantity blocking a single-piece order. We will still provide a full fitment sheet and key dimensions to ensure the part matches your specific custom spring fork setup before dispatch.
Q: How do you ensure the chrome finish matches other front-end parts?
A: We control the chrome plating process in our own facility to maintain consistent batch-to-batch appearance. When you order multiple front-end components from us, we ensure the finish quality is uniform across all parts. We also provide a finish specification in your documentation so you know exactly what to expect when the parts arrive.
Q: Do you provide a fitment sheet to confirm compatibility before shipping?
A: Yes, every order includes a fitment sheet stating the applicable platforms and year ranges the part was checked against. This sheet also includes key dimensions like steering stem diameter and ear spacing. This documentation allows you to verify compatibility against your specific custom spring fork build before proceeding with installation.