Black Custom Springer Fork Kit 18″ Over Stock – Fits Custom Builds
Verified Front-End Dimensions — Every custom springer fork kit 18 inch is measured for triple tree design, leg thread pitch, and rocker offset before sample approval.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Custom Springer Fork Kit |
| Length | 18″ over stock |
| Finish | Black body with chrome springs and machined chrome top triple tree |
| Top Triple Tree | Machined design without ears |
| Fork Stem | 1″ |
| Axle Assembly | 3/4″ |
| Leg Thread | 1/2″ x 20 |
| Rocker Offset | Right rocker is NOT offset |
| Kit Contents | Fork kit, 1″ fork stem, 3/4″ axle assembly |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Custom builds | Confirm with model and year | For custom brake and spool wheel installation; use spacers for axle as required to center wheel |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why Over-Stock Lengths Cause Geometry Guesswork
An 18″ over stock length changes ride height and steering geometry, requiring exact frame measurements before ordering.
Builders often see a listing that simply states a springer fork fits a custom frame, but the overall length and rake impact are missing. Without knowing how an 18″ over stock measurement alters the front-end profile, shops risk ordering a kit that throws off the steering geometry or causes the fender to strike the tire. We verify the exact platform and year range to ensure the dimensions match your specific build requirements [NEED_CITE: frame geometry calculations for over-stock springer lengths].
Checking the Top Triple Tree Design for Post Risers
When ordering a custom springer fork kit 18 inch, the top triple tree design dictates how your handlebars mount. This kit features a machined top triple tree without ears. If your build requires post risers, you must use a stud to the top of the rear fork legs, as the lack of ears leaves standard riser mounts without a mounting point. Confirming this detail prevents the fork from arriving at the shop with nowhere to attach the risers.
Verifying Rocker Offset for Wheel Alignment
The right rocker on this custom springer fork kit 18 inch is NOT offset. This specific design choice directly affects the alignment of your custom brake and spool wheel setup. If a builder assumes the right rocker is offset based on older catalog data, the wheel will sit off-center, causing severe alignment issues with the brake caliper and spool wheel. Always check the rocker offset against your exact wheel and brake specifications before clearing the sample [NEED_CITE: rocker offset variations across custom springer generations].
Interpreting Stem and Axle Dimensions
The 1″ fork stem and 3/4″ axle assembly included in this kit must match your custom triple tree neck and wheel hub spacing. A 1″ stem will not fit a neck cup bored for a different diameter, and a 3/4″ axle requires the wheel hub to accept that exact width. Additionally, the 1/2″ x 20 leg thread must align with your chosen spring and hardware. Measuring these three dimensions against your frame prevents the fork from failing to seat properly in the neck or the wheel from binding on the axle.
The Hidden Cost of Unverified Kit Contents
Ordering a front-end kit without confirming the exact contents often leads to the bike sitting on the lift while waiting for missing hardware. If the 1″ taper bearing kit is assumed to be included but is actually sold separately, the assembly halts. Similarly, if the axle spacers needed to center the wheel are not accounted for, the wheel cannot be mounted safely. Verifying the kit contents and required spacers against your build sheet eliminates these costly assembly delays [NEED_CITE: assembly delays caused by missing springer fork hardware].
Sourcing Front-End Depth with Single-Piece Flexibility
We produce our own springer front ends, allowing us to offer complete assemblies and multiple over-stock lengths under one account. This front-end depth means you get the fork kit, 1″ fork stem, and 3/4″ axle assembly checked together for consistency. We also provide chrome and black finish options, ensuring the black body and chrome springs match your aesthetic requirements. Most importantly, we support a minimum order from one piece, allowing custom builders to order a single sample for fitment confirmation before committing to a bulk production run.
Documentation and Fitment Records
- Fitment sheet stating applicable platforms and year ranges for this 18″ over stock kit
- Cross-reference sheet with OEM numbers marked reference only for identification
- Key dimensions including fork length over stock, stem diameter, and axle size
- Finish specification detailing the black body and chrome spring application
- Quality inspection record verifying the non-offset right rocker and machined triple tree
Receiving and Pre-Installation Checks
- Verify the kit includes the fork kit, 1″ fork stem, and 3/4″ axle assembly upon arrival
- Measure the 1″ fork stem diameter to ensure it matches your custom neck cup
- Check the 1/2″ x 20 leg thread pitch against your spring and hardware selection
- Confirm the top triple tree without ears aligns with your post riser mounting plan
- Inspect the black body and chrome springs for finish consistency before assembly
- Store the fork kit in a dry environment to prevent surface rust on the chrome components
Requesting a Fitment Check
Send your model and year, along with a photograph or measurements of your current triple tree and wheel hub, to verify if this custom springer fork kit 18 inch fits your build. Let us know if you require the 1″ taper bearing kit or specific axle spacers for your spool wheel setup. We can supply a single sample kit for fitment confirmation before you place a larger order for your shop.
Frequently Asked Questions
Q: How do I measure my current fork length to confirm an 18″ over stock kit fits my frame geometry?
A: Measure the distance from the bottom of the lower triple tree to the center of the axle on your current setup. Compare this to the 18″ over stock length of the new kit to calculate the change in ride height. This ensures the new fork will not cause the fender to strike the tire or alter the steering geometry beyond your frame’s design limits.
Q: What key dimensions must I check to ensure the 1″ stem and 3/4″ axle fit my custom triple tree and wheel?
A: You must measure the inner diameter of your steering head neck to confirm it accepts a 1″ fork stem. Next, measure the width of your wheel hub to ensure it accommodates a 3/4″ axle assembly. Finally, verify that your fork legs feature a 1/2″ x 20 thread pitch to match the hardware included in this specific springer fork kit.
Q: Does the kit include the 1″ taper bearing kit, or is it sold separately?
A: The 1″ taper bearing kit is sold separately and is not included in the standard kit contents. The kit strictly includes the fork kit, the 1″ fork stem, and the 3/4″ axle assembly. You must order the bearing kit separately to ensure the fork stem seats correctly within your custom steering head neck during assembly.
Q: How do I determine the correct axle spacers needed to center the wheel on this springer fork?
A: Measure the overall width of your wheel hub and compare it to the distance between the inner faces of the fork legs. The difference dictates the thickness of the spacers required on each side of the axle. Using the correct spacers ensures the wheel sits perfectly centered between the legs, which is critical for the custom brake and spool wheel alignment.
Q: Can I order a single sample kit to verify fitment on my custom build before placing a bulk order?
A: Yes, we support a minimum order from one piece specifically for custom builders and shops. You can order a single sample of this 18″ over stock kit to verify the triple tree design, rocker offset, and axle dimensions against your specific build. Once the sample is confirmed to fit your frame geometry and wheel setup, you can proceed with a bulk order.