Black Custom Springer Fork Assembly 18″ Offset – Fits Rigid Frames
In-house springer production — every 18″ offset springer fork assembly for rigid frames is built and measured in our own facility to guarantee tree width and rocker offset match your exact drum pattern.
Product Specification
| Parameter | Value |
|---|---|
| Part Type | Custom Springer Fork Assembly |
| Finish | Painted black |
| Length | 18″ (measured from the top of the rear leg to the front axle center line) |
| Rake | 30° |
| Offset | Offset outside mount rockers |
| Construction | Electric welded and brazed |
| Kit Contents | Front and rear legs, inner and outer springs, rockers, offset outside mount rockers, studs and bushings, spring rods with bushings |
Fitment
| Platform | Year Range | Notes |
|---|---|---|
| Rigid frames | Confirm with model and year | For use with rigid frames with 30° rake |
Independent aftermarket part. Not manufactured, sold or endorsed by any motorcycle manufacturer. Model names and OEM numbers are used for fitment reference only.
Why 30 Degree Rake And Offset Rockers Dictate Your Wheel Spacing
A 30 degree rake combined with offset outside mount rockers completely changes the front end geometry and hub alignment.
Springer forks offered over stock or with offset mounts often lack clear statements on overall length, rake, and trail impact, making it hard to judge ride height and steering geometry before purchase [NEED_CITE: frame geometry manuals for rigid builds]. When you install a 18″ offset springer fork assembly for rigid frames, the offset outside mount rockers shift the wheel mounting plane. If the tree width and rocker offset are not verified against the exact drum pattern, the lug bolt type drum wheel spacing will be completely off and the hub will not align with the frame [NEED_CITE: wheel alignment specifications for custom springer setups].
Verifying Tree Width Against The Drum Pattern
Working in the warehouse checking part numbers and catalogues for years taught me to measure twice. I once saw a custom rigid frame build stall because the buyer ordered an 18 inch spring fork assembly without checking the 30 degree rake. The offset outside mount rockers were ignored, so the lug bolt type drum wheel spacing was completely off and the hub would not align. Now I always verify the tree width and rocker offset against the exact drum pattern before approving any springer front end.
Measuring The 18 Inch Length Correctly
The 18″ length on this 18″ offset springer fork assembly for rigid frames is measured strictly from the top of the rear leg to the front axle center line. This specific measurement method determines your ride height and how the front end sits relative to the frame neck. Confirming this 18″ measurement method aligns with your frame’s springer mounting points prevents the front end from sitting too high or too low, which would alter the intended 30° rake and ruin the steering geometry [NEED_CITE: springer fork measurement standards].
The Hidden Cost Of Ignoring Rake And Offset
Ordering a springer front end without confirming the frame rake is exactly 30° means the fork geometry will fight the frame neck angle. If the offset outside mount rockers do not match your wheel hub and lug bolt type drum spacing, the wheel will not center, forcing you to machine custom spacers or wait for a replacement. A mismatched 18″ offset springer fork assembly for rigid frames leaves the bike stalled on the lift, wasting shop hours and delaying the build [NEED_CITE: custom build delays caused by incorrect front end fitment].
Sourcing From A Front End Specialist
We produce front-end and chassis parts in our own facility, ensuring the electric welded and brazed construction meets our internal standards. Our front-end depth means you get a complete 18″ offset springer fork assembly for rigid frames, including all springs, rockers, and hardware, in one catalogue. We offer painted black finish options that are checked for consistency before dispatch. Fitment is confirmed against the platform family and rake requirements before quotation. We support a minimum order from one piece, allowing shops to order a single assembly for a custom build without hitting bulk barriers.
Documentation Provided
- Fitment sheet stating applicable platforms and the 30° rake requirement
- Key dimensions including the 18″ fork length and offset specifications
- Finish specification for the painted black components
- Quality inspection record for the electric welded and brazed joints
- Warranty terms covering the complete springer fork kit
Receiving And Pre-Installation Checks
- Verify the kit includes front and rear legs, inner and outer springs, and offset outside mount rockers.
- Measure the 18″ length from the top of the rear leg to the front axle center line.
- Confirm the painted black finish is free from defects before starting the build.
- Check that the offset outside mount rockers match your specific wheel hub spacing.
- Have a qualified technician inspect the electric welded and brazed joints before mounting.
Requesting A Fitment Check
Send your rigid frame model, year, and a photograph of the current drum wheel spacing to verify the 30° rake requirement. Provide the exact tree width and lug bolt type drum measurements to ensure the offset outside mount rockers will align correctly. Let us know if you need a sample 18″ offset springer fork assembly for rigid frames for a test fit before placing a bulk order.
Frequently Asked Questions
Q: How is the 18″ length measured on this springer fork assembly?
A: The 18″ length is measured strictly from the top of the rear leg to the front axle center line. This specific measurement determines the ride height and ensures the front end sits correctly relative to the frame neck, maintaining the intended geometry for rigid frames.
Q: What frame rake is required for this 30° springer front end?
A: This 18″ offset springer fork assembly for rigid frames is designed specifically for use with rigid frames featuring a 30° rake. Confirming your frame neck angle matches this 30° specification is critical to ensure the steering geometry and ride height function as intended.
Q: How do the offset outside mount rockers affect wheel fitment and spacing?
A: The offset outside mount rockers shift the wheel mounting plane to utilize interchangeable wheels. You must verify that the tree width and rocker offset match your exact lug bolt type drum wheel spacing, otherwise the hub will not align properly with the frame.
Q: What components are included in the springer fork kit?
A: The complete kit includes front and rear legs, inner and outer springs, standard rockers, offset outside mount rockers, studs and bushings, plus spring rods with bushings. All parts feature electric welded and brazed construction for structural integrity.
Q: Can I order a single springer fork assembly for a custom build?
A: Yes, we support a minimum order from one piece. This allows custom builders and repair shops to order a single 18″ offset springer fork assembly for rigid frames for a specific project without being blocked by high minimum order quantities.