Description
Designed for 2018-Up Harley-Davidson Softail models
The INCA KING SYB-004 Swingarm is designed and manufactured by INCA KING for Harley-Davidson Softail motorcycles equipped with Milwaukee-Eight engines.
Featuring an open-frame structure, precision CNC machining and a performance-inspired profile, this swingarm is intended for riders building Performance Softails, Club Style motorcycles and custom Harley projects.
Its exposed structural design creates a more technical and mechanical appearance compared with the factory-style rear end.
Designed in-house by INCA KING specifically around compatible M8 Softail rear-end configurations.
This is a structural rear suspension component rather than a cosmetic trim piece.
The rear axle section incorporates an adjustment mechanism for setting rear-wheel position during installation.
Final chain or belt tension should always be adjusted according to the requirements of the drivetrain manufacturer.
Compatibility may vary depending on:
- Model year
- Exact model
- Rear axle specification
- Wheel size
- ABS configuration
- Rear brake setup
- Chain or belt drivetrain
- Rear suspension configuration
- Existing aftermarket modifications
Motorcycles equipped with chain-drive conversions, wide-wheel setups or other major rear-end modifications should be verified before ordering.












