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Meet Glerc's bicycle expert
Ethan Marshall
Bicycle Engineer & Performance Expert
Glerc Product Development Team
Ethan turns engineering details into practical guidance for choosing a bike that fits, handles well, and feels comfortable. With more than 20 years in the bicycle industry and work on 100+ products, he helps riders and families make confident decisions about sizing, safety, performance, and design.
A rider-first approach
What Ethan looks for in a bike
The best bike is not the one with the longest spec list. It is the one a rider can control, enjoy, and keep riding.
Guides by Ethan Marshall
Expert guidance from Glerc's bicycle engineer.
Hybrid Bike for Beginners: A Simple First-Bike Guide
This guide explains how to choose a comfortable first hybrid bike and compares GLERC Missy, AVASTA Astrid, and Vela for commuting, family rides, and everyday use.
Best Hybrid Bikes for Everyday Riding in 2026
This guide compares three GLERC hybrid bikes and explains how fit, terrain, gears, brakes, and cargo features shape the right choice for commuting, errands, fitness, and family rides.
What Age Is an 18 Inch Bike For? A Parent’s Real Guide
Most 18 inch bikes fit children ages 5 to 10, but height, inseam, and riding ability provide a more reliable answer than age alone. This guide explains how to measure...
Experience behind the advice
Engineering insight, translated for riders
Ethan has contributed to the research, engineering, development, and testing of more than 100 bicycle products for brands across the United States, Europe, and Australia. At Glerc, he focuses on product performance, safety, children's bicycle design, and e-bike development.
