OFFRAMP OM22 Magneto Ignition for Harley Ironhead Sportster (1957–1970)
and 45 & 80 Flathead Engines

Next-Generation High-Performance Magneto Ignition

Engineered for classic ignition systems. Built for a pure, uncompromised riding experience.

Classic architecture. Modern reliability.

When building a chopper, custom, or bobber, simplicity isn’t a style choice—it’s the foundation.

OFFRAMP Magneto is designed for builders who pursue mechanical purity, clean layouts, and functional minimalism.

By using a true magneto ignition system, the motorcycle can operate without a battery, eliminating unnecessary wiring, electrical components, and complexity. The result is a cleaner build, reduced weight, and increased reliability—especially critical for stripped-down custom motorcycles.

The OFFRAMP Magneto OM22 that mounts securely to the engine cam cover, providing exceptional stability. It is equipped with automatic advance for optimal riding performance and manual retard to improve starting safety and ease.

To accommodate different frame designs and visual preferences, the magneto supports multiple mounting orientations, allowing builders to fine-tune both function and appearance.

Each OFFRAMP Magneto is precision-assembled to order, ensuring consistent performance and dependable quality.

It is more than an ignition system—it is a refined expression of mechanical simplicity and modern reliability.

With only the magneto head and the upper bronze bearing ring in motion, the design minimizes movement at the mounting surface, helping reduce oil leakage and unwanted vibration commonly associated with traditional advance-style mounts.
Ignition timing can be set in 12-degree increments, offering more precise adjustment compared to conventional 36-degree positions. The system is compatible with both battery-equipped and battery-free setups.

OFFRAMP MAGNETO features a 5-axis CNC-machined solid aluminum base,
precision-cut from a single billet of high-grade aluminum to achieve an ideal balance of structural strength, machining accuracy, and weight optimization.
All models are finished with an 8K mirror-polished surface, delivering long-term durability while maintaining a premium, high-end appearance without compromising mechanical performance.

Features a high-quality rare-earth magnet rotor combined with a dual-spring coil design to deliver stable and consistent ignition energy.
The contact point assembly utilizes a spherical contact design with an ultra wear-resistant rubbing block, reducing wear while improving ignition accuracy and service life.

• Magneto Cap customization options:

• Multiple colors and material finishes available

• Selectable Kill Stud orientation

• Custom color options for Kill Stud orientation

• Production & lead time:

• All OFFRAMP magnetos are custom-built

• Standard lead time is within 1 week before shipping

• In case of raw material shortages, lead time may extend to 4–8 weeks

NOTE: No returns are accepted on magnetos as they are made-to-order.

Built on Tradition. Refined for Today.

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