Mikuni Smoothbore Carburetor - Hsr48 Race KIT — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)

Mikuni HSR48 smoothbore carburetor race kit for V-twin motorcycles, available in 45mm for heavily modified engines or 42mm for custom applications. Engineered for maximum fuel delivery and tuning range on built motors.

Features

• 45mm option for maximum modified-engine carburetion
• 42mm option for custom V-twin applications
• Compatible with OEM Harley cables (42mm)
• Smoothbore design for precision tuning

Specifications

• Brand: Mikuni
• Manufacturer Part #: F48-2
• Weight: 3.72 lbs
• Country of Origin: Japan

Fitment

Fits V-twin motorcycles. Available in 45mm and 42mm sizes — choose based on engine displacement and modification level.

Frequently Asked Questions

What's the difference between the 45mm and 42mm versions?

45mm is for heavily modified engines needing maximum fuel flow. 42mm suits custom builds and stock-displacement engines. Both use OEM Harley cables.

Do I need intake manifolds?

Manifolds are not included — you'll need to source them separately based on your specific engine and mounting setup.

Is this a complete carb kit?

Yes — the HSR48 race kit includes the smoothbore carburetor. Check your engine's fuel line and cable routing before installation.

Will this work on Indian Motorcycles?

This kit is designed for V-twin motorcycles. Verify fitment with your specific Indian model before ordering.