BEHIND THE ENGINEERING // GEORGENA TERRY
A BETTER BICYCLE
Blending art, anatomy, and mechanical insight, Georgena Terry built the first bikes designed around women’s proportions, changing cycling forever.
Written by Aida M. Toro
WHEN GEORGENA TERRY first started brazing together steel tubes in her basement in upstate New York, she wasn’t setting out to spark a movement. She was “just trying to build a bike that fit.”
At the time, in the early 1980s, nearly every bicycle on the market was designed around the proportions of an average-sized man. For smaller riders—especially women—the geometry simply didn’t work. The reach to the handlebars was too long, the standover height too tall, and even subtle elements like crank length disrupted balance and power.
For Terry, who studied mechanical engineering at Carnegie Mellon University in Pittsburgh but came from a creative background in art, this disconnect was both a technical puzzle and an opportunity to innovate. As she became known as a pioneer in women’s cycling, Terry’s path wound through art studios and drafting tables. Her creative foundation shaped how she approached engineering.
“It made me appreciate the need to find a competent art director who could suggest a design protocol I could use going forward,” she said. “This encompassed logos, bicycle colors, catalogs, and website design.”
That blend of artistic sensibility and engineering logic would come to define her work—where geometry wasn’t just math, but a language for movement.

Georgena Terry in her early workshop, brazing the first prototype frames that would evolve into the women-specific geometry bikes she later produced commercially. Photo: Georgena Terry
Building from the ground up
After earning her mechanical engineering degree, Terry spent several years in the corporate world. Yet the structure of large organizations left her restless.
“I don’t do well in a corporate environment, which relies heavily on group dynamics,” she said. “I prefer to work alone.”
Leaving a steady job might have seemed risky, but for Terry it felt natural.
“As much as anything, it was the desire to get out of the corporate world and into something that really interested me, like bicycles,” she said.
Her process was analytical yet intuitive. She studied the physical proportions of women riders—mapping the biomechanics of reach, balance, and power distribution.
“With lots of spreadsheets tying together the relationships between body proportions and bicycle frame geometry,” she explained. “It became the backbone of how we engineered the fit.”
Rather than simply scaling down a men’s frame, Terry reimagined the entire structure. She altered frame angles, shortened top tubes, and even rethought wheel diameters to achieve balanced weight distribution. Where most manufacturers used standard 700c wheels, Terry introduced a mixed-wheel design: smaller 24-inch fronts with 700c rears. It was a quiet revolution in ratios—and the proof came on the road.
“Yes, when I took a prototype bicycle to bike rallies and women loved the test ride,” she said.
Riders who had long struggled to feel stable suddenly found control and comfort. Geometry met empathy as engineering finally served anatomy.
From basement workshop to industry blueprint
Experimentation defined Terry’s early rhythm. While she didn’t chase exotic materials, she pushed reliability to its limits.
“My experimentation was limited to destructive testing of my brazed tubes to make sure they were bomb-proof,” she said. “Wheel sizes and frame angles were fairly standard for typical bicycle designs.”
Each failure offered data. Steel remained her choice not out of nostalgia, but for its predictability.
“Fortunately, steel was the primary material being used at the time, and its durability is well-known,” she said.
By 1985, Terry launched Terry Precision Bicycles—the first company in the world to design bikes specifically for women. She built prototypes by hand, worked with select vendors, and tested every geometry tweak herself.

Sporting one of her handmade bicycles, Terry remains dedicated to small-scale craftsmanship and to keeping the mechanics of cycling simple, durable, and human-centered. Photo: Georgena Terry
“By carefully choosing vendors who produced bicycles for us, I could adapt production to their capabilities,” she said. “I let the marketing gurus at my company worry about creating customer demand.”
Her focus stayed on engineering: alignment, tolerances, and the fine ratios that defined performance. By the early 1990s, her influence was everywhere—major brands started advertising “women’s bikes,” even if few matched her rigor.
“The industry is still hung up on smaller wheel sizes,” she said later. “Wheels seem to be getting larger. I suppose inventory issues prevent it from going down that road.”
Her innovations extended beyond frames. Terry’s company also developed women-specific saddles, which became one of her biggest successes.
“Saddles were a little more exciting but turned into a marketing project once our ideas took off,” she said.
Even as the brand expanded into apparel, Terry kept her focus simple.
“I’m not a clothes horse,” she said. “As long as it’s blue, I like it.”
“As much as anything, it was the desire to get out of the corporate world and into something that really interested me, like bicycles.”
—Georgena Terry, Bicycle Designer and Businesswoman
A legacy of fit and focus
In a male-dominated industry, Terry’s work was both technical and cultural. She wasn’t just designing products—she was designing access.
“Ignorance is bliss, as they say, so I ignored the naysayers and focused on the positives,” she said.
That focus carried her through the skepticism of those who doubted women would invest in high-end engineering.
“The main early setback I faced was people who thought women wouldn’t spend the money to purchase a hand built bike,” she said.
The market proved otherwise. Terry’s balance between engineering precision and entrepreneurship reshaped cycling.
“I expect that one can get so buried in the details that she forgets about the ultimate goal,” she said.

Terry riding one of her designs on a country road. Photo: Georgena Terry
Terry’s goal never changed, which was to build a bike that fits and lasts. Today, she’s back to working by hand, crafting custom frames one-on-one with riders.
“Just like the days when I built bikes in my basement,” Terry said. “Automation is nice, but there’s no personal aspect to it, despite what AI says.”
For younger engineers, her message remains clear, which is to recognize the challenge and embrace it, while being empathetic and concentrating on the user.
Her philosophy about engineering serving the human experience has guided every weld and every design. Yet she’s still candid about the industry’s limits.
“Components have evolved quite a bit in the last 40 years, contributing to better performance, but the prices of bicycles don’t permit everyone to benefit from this,” Terry said. “I’m not sure we’re winning the inclusivity game.”
Terry continues to see the bicycle not as a static machine but as a living system—one that can always be refined to better serve its rider. Her work changed the geometry of an industry, but her true legacy lies in showing what happens when empathy meets precision.
Aida M. Toro is a lifestyle writer in New York City.

© 2025 The American Society of Mechanical Engineers. All rights reserved.
