Efneo Gearbox installed on a commuter bike

Efneo Gearbox installed on a commuter bike

Efneo Gearbox installed on a commuter bike. It can be installed at any type of bicycle frame designed for a tapered square axle bottom bracket.

M. Özgür Nevres

I am a software developer, an ex-racing cyclist (at the amateur level) and a science enthusiast. Also an animal lover! I write about cycling on this website, cycling-passion.com. You can check out my social media profiles by clicking on their icons.
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