
Product information
Overview
A weld-on hinge assembly connecting the nose of a custom solo seat to the motorcycle frame backbone.
Features
- Investment-cast 4130 chromoly hinge head with Biltwell branding.
- Laser-cut 4130 chromoly strap, TIG welded to the head.
- Raw cast-steel weld-on bung with press-fit bronze pivot bushings.
Specifications
- Brand: Biltwell Inc.
- Manufacturer part number: 4322
- Black electroplated hinge; chrome-plated Grade 8 shoulder bolt.
Fitment and installation
- Universal weld-on custom-seat hinge application. Confirm frame material, welding location, hinge geometry, seat-pan interface and clearances before fabrication.
- Fits Biltwell original welded and newer cast hinge bungs.
Package contents
- Chrome shoulder bolt supplied.
Installation notes
- Requires grinding, welding and repainting; the strap bolts under the seat and the raw bung welds to the frame.
- Apply a light smear of grease to the shoulder bolt and blue threadlocker to its threads, as directed by Biltwell.
Fitment
Universal fitment. Confirm dimensions and installation requirements before ordering.
Specifications
- Specifications
- Investment-cast 4130 chromoly hinge head; laser-cut 4130 chromoly mounting strap; black electroplated finish; raw weld-on hinge bung with bronze bushings; chrome plated grade-8 shoulder bolt.
- Color
- Black
- Finish
- Black Electroplated Hinge / Raw Weld-On Bung / Chrome Bolt
- Material
- Steel
Shipping & support
Shipping
Taiwan orders are prepared after payment and inventory confirmation. Shipping fees and any free-shipping threshold are shown at checkout.
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Request a return within 14 days after receiving the item. Wait for return approval and shipping instructions before sending anything back.
View returns and warrantyFAQ
Before ordering, compare the SKU, OEM number, brand part number, model year, fitment notes, and product images.
View FAQsFitment help
If fitment is uncertain, send the SKU or OEM number together with the motorcycle year and model before checkout.
Contact fitment support