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Making Your Helmet Fit Perfectly

Helmet Lifespan

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Travel Checklist

Waxing Your Windshield and Faceshield

Winter Fuel Conditioning

The Pace - A great article that offers the "right" way to ride in a group and the 15 most common riding mistakes

Paul's Scooter with Radio

Amateur Radio Emergency Communications Training Course Part 1 - Procedures (413 kb pdf)

Amateur Radio Emergency Communications Training Course Part 2 - Technical (3 mb pdf)

Amateur Radio Emergency Communications Training Course Part 3 - Technical (3 mb pdf)

Removable Automobile HF Radio Mount

Kantronics - Yaesu Pinout (PDF)

Kantronics - Kenwood Pinout (PDF)

SCS-PTC Pactor Modem to Yaesu (pdf)

Making Professional Looking Front Panels

RS232 DB9 Connector Pinout (PDF)

Garmin - Kenwood Pinout (PDF)

WB2LUA Radio Installation


Helmet Lifespan


John, WB2LUA

Helmet manufacturers and the Snell Foundation suggest replacement after about 5 years.

Impact protection comes from the outer shell, the styrene inner shell, and the comfort lining. The styrene inner liner crushes as it absorbs energy. The comfort liner compresses until it bottoms out against the styrene. Glues, resins and other materials used in helmet production can affect liner materials, and general liner deterioration and helmet degradation can result from hair oils, body fluids, cosmetics, and normal "wear and tear."

From past experience there will probably be a noticeable improvement in the protective characteristic of helmets over a five year period due to advances in materials, design and the standards. Therefore, regardless of wear, you will probably want to replace your helmet every five years.