New Hampshire engineer designs custom mountain biking device for one-armed rider
By Nicole Estaphan
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WEST LEBANON, New Hampshire (WCVB) — Chris Coulter, of West Lebanon, NH, has spent his life finding ways to do things differently. Born without his left arm, he learned early to solve problems independently. Now, his engineering skills have helped him design a custom device that has transformed his mountain biking.
Coulter loves riding trails, but controlling a bike over rocks, roots and steep terrain presented a persistent challenge. Off-the-shelf attachments and modifications improved his grip, but his arm could still slip when he hit a bump.
After flipping over his handlebars in his own driveway.
“I’m an engineer. I should be able to design something that works better for me — and not just adapt what’s available,” he said.
Coulter brought his idea to friends at Manufacturing Collaborative in Randolph, Vermont. They scanned his arm, built a model and developed a custom, adjustable attachment he calls the “Adaptation Contraption.”
The device helps him control the handlebars and lift the bike over obstacles.
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