Atherton Bikes’ latest project—a gearbox downhill bike—takes commitment to innovation to the next level. For years, the idea of a gearbox bike has lingered in the minds of the Atherton crew, a dream often discussed in long van rides across Europe during the early days of racing. But now, with the right partners and cutting-edge technology, that dream has become a reality.
Years in the making
The concept of a gearbox bike isn’t new—it’s been a pipe dream since the team’s early days. However, the support from Gates finally aligned to make this project possible. “The idea has always been there, in the back of our minds, but it was having the right people and the right technology to bring it to life,” said Atherton CEO Dan Brown.
Over late-night discussions and countless brainstorming sessions, the team mapped out the vision for what could be the ultimate downhill bike. Fast-forward to 2023, and with the help of design legends like Dave Weagle and a cutting-edge manufacturing process, the first prototype was born—faster than anyone could have imagined.
From concept to reality
Most bike companies take years to move from concept to prototype, but Atherton Bikes operates differently. With their in-house additive manufacturing processes and local partners like Renishaw, they were able to accelerate the process. Titanium lugs were 3D printed, heat-treated and machined to perfection before being bonded to carbon tubes with aerospace-grade epoxy.
The gearbox advantage
What makes this bike special isn’t just the gearbox itself, but how it’s integrated into the frame. With the gearbox replacing a traditional bottom bracket, the structural challenges were immense. Add to that a mid-pivot design and the team had to completely rethink how the bike would handle forces and deliver performance on the track.
The result? A bike with a low center of gravity and incredible stability, designed to handle the rigors of world cup downhill racing. Charlie Hatton’s first impressions were overwhelmingly positive. “It felt like a glove I hadn’t worn in years—it just fit perfectly,” he said after the first ride. “It’s quiet, planted, and tracks the ground in a way that feels completely different but also completely right.”
Testing the Limits
The prototype has already seen extensive testing on varied terrain, from tight, technical trails to fast, rough descents. Early results are promising, with the bike feeling more composed and settled than…
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