Raw Spring Fork Top Triple Tree 1/2″ Holes – Fits Stock Spring Forks
Front-End Depth Verified — We maintain a comprehensive catalogue of springer assemblies and early parts, ensuring every spring fork top triple tree for springer front ends matches exact platform dimensions before shipping.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Spring Fork Top Triple Tree |
| Material | Cast steel, machined from a forged part |
| Finish | Raw (as forged finish) |
| Mount Holes | 1/2″ (without ears) |
| Thread Size | 1/2″ x 20 or 1/2″ x 13 |
| Fork Fitting | Machined holes for fork installation |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Stock or custom Spring Forks | Confirm with model and year | Verify fork stem diameter and tree width spacing. |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why Steering Stem Spacing Derails Custom Springer Builds
Fork hole spacing and post riser thread mismatches are the primary reasons custom builds stall on the assembly floor.
When builders order a spring fork top triple tree for springer front ends without confirming the specific fork width, the sliders often refuse to seat properly. I have seen shops waste days trying to force mismatched components because the tree width was meant for a different frame generation [NEED_CITE: frame geometry and tree spacing variations across custom springer builds].

Verifying Tree Width Before Pulling Parts
A builder once sent a photo of a front end without specifying the year. I pulled a raw top triple tree assuming it would fit, but the fork tube spacing was slightly off. The sliders just would not slide in. Now, verifying the tree width and spacing against the specific stock or custom spring fork is the mandatory first step before pulling any spring fork top triple tree for springer front ends from the shelf.
Checking Post Riser Thread Compatibility
The mount holes on this unit are designed without ears and feature 1/2″ threads. You must confirm whether your specific post risers require 1/2″ x 20 or 1/2″ x 13 threads to accept the allen cap screws. Overlooking this thread pitch difference means the risers will not seat, halting handlebar installation entirely [NEED_CITE: thread pitch standards for aftermarket post risers].
Understanding the Raw As-Forged Surface
This spring fork top triple tree for springer front ends is constructed of cast steel and machined directly from a forged part. The raw as-forged finish is left intact across the surface area. This provides a solid, uncoated baseline for builders who intend to machine, polish, or apply their own custom coatings later in the build process.

The Hidden Cost of Unverified Dimensions
Ordering based on a generic visual match rather than confirmed dimensions leads to severe delays. If the machined fork fitting holes do not align with your spring fork stem diameter, the entire front end must be disassembled and returned. When part numbers are superseded across model years, relying on an old manual without cross-referencing the current tree width guarantees the part arrives but does not fit [NEED_CITE: superseded part number changes affecting tree dimensions].
Sourcing From a Fitment-Focused Catalogue
We verify fitment against the platform family before quotation, ensuring your spring fork top triple tree for springer front ends matches the required tree width. Our front-end depth means you can source this raw triple tree alongside early springer parts and hydraulic components in one place. We supply a fitment sheet stating applicable platforms, and we support single piece orders for shops building one custom bike at a time.
Documentation Provided With Your Order
- Fitment sheet stating applicable platforms and year ranges.
- Key dimensions including fork fitting hole spacing and mount hole thread sizes.
- Finish specification for the raw forged surface consistency.
- Quality inspection record verifying machined fork fitting dimensions.
- Sample supply available for fitment confirmation before bulk orders.
Receiving And Inspecting The Triple Tree
- Verify the 1/2″ mount holes are free of debris for post riser installation.
- Confirm the machined fork fitting holes align with your spring fork stem.
- Check the raw as-forged finish for any unexpected surface defects.
- Ensure the 1/2″ x 20 or 1/2″ x 13 threads are clean and undamaged.
- Store in a dry environment to prevent surface rust on the raw steel.
Requesting A Fitment Check
Send your model and year, along with a photograph or measurements of your current fork stem, for a fitment check. Specify if you need the 1/2″ x 20 or 1/2″ x 13 thread size for your post risers. Let us know if you require a sample for fitment confirmation before placing your order.
Frequently Asked Questions
Q: How do I confirm this raw top triple tree fits my specific spring fork?
A: You must verify the machined fork fitting hole spacing matches your spring fork stem diameter. We provide a fitment sheet listing the exact dimensions this part was checked against. Send us your fork measurements or a photograph, and we will verify the tree width and spacing before quotation to ensure proper alignment.
Q: What are the exact thread sizes for the post riser mount holes?
A: The mount holes on this unit are designed without ears and are available in two thread sizes: 1/2″ x 20 or 1/2″ x 13. You must confirm which thread pitch your specific post risers and allen cap screws require. We can supply the correct variation based on your riser specifications during the ordering process.
Q: Can I order a single top triple tree for a one-off custom build?
A: Yes, we support single piece orders for custom builders and independent repair shops. You do not need to meet a high minimum order quantity to purchase one raw spring fork top triple tree for springer front ends. We can also provide a sample for fitment confirmation before you commit to any larger bulk orders.
Q: How is the raw as-forged finish consistency checked?
A: The raw as-forged finish is inspected for surface consistency across different batches to ensure it meets our quality standards. Since no secondary plating is applied, the quality inspection record verifies the machined surfaces and forged texture. This provides a reliable, uncoated baseline for builders planning to apply their own custom finishes later.
Q: What documentation verifies the machined fork fitting dimensions?
A: We supply a detailed fitment sheet and a quality inspection record with every order. These documents confirm the key dimensions, including the fork fitting hole spacing and the mount hole thread sizes. This ensures you have the exact data needed to verify alignment with your stock or custom spring fork stem before installation.