What are your mountain bike frames made of?

Tell us whether your mountain bikes are aluminum, carbon fiber, steel, or titanium.
By Jeff Barber

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Close-up view of a turquoise bicycle frame featuring a black sticker with the chemical elements phosphorus (P), chromium (Cr), and molybdenum (Mo) symbols, indicating material specifications. The background is a soft focus of green foliage.

There are four basic materials that most mountain bike frames are made with: carbon fiber, steel, aluminum, or titanium. Each has its own strengths and weaknesses, though all make for a solid frame choice if used correctly. This week, we want to know which frame materials are represented in your quiver.

What is/are your mountain bike frame(s) made from?

Tell us which MTB frame material is your favorite, and why, in the comments below.

 
An older man with a distinctive mustache and glasses is sitting at a table, wearing a white t-shirt with a Bonneville graphic. He has a tan cap on his head and is engaged in conversation, while a younger man in a navy blue shirt stands nearby. The background features wooden and metal elements typical of a workshop or garage setting.
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A close-up view of a mountain bike tire mounted on a white background. The tire is labeled "ASPEN" and has specifications including "32x40" and "120 TPI." The tread pattern is designed for grip and performance on various terrains.
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A sleek, blue mountain bike is positioned on a wooden floor against a backdrop of corrugated metal. The bike features a sturdy frame, thick tires with a tread pattern suited for off-road riding, and high-quality components including disc brakes. The overall design showcases a blend of durability and style, ideal for outdoor adventures.
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