Two years ago, Bike Hugger collaborated with Seattle’s Davidson Custom Bicycles on a titanium cyclocross that could be easily switched from singlespeed to multispeed “modes.” Sure, just about any multispeed bike can replace the rear derailleur with a chain tensioner, but the idea was to eliminate such items since like derailleurs they can foul with mud, grass, or ice. Also, one would want to have two alternate handlebars, one connected to only to brakes and one with derailleurs as well, and be able to swap them with minimal cable replacement and/or tuning. The bike that came to be known as the Davidson D-Plus has seen plenty of racing, geared and singled, and has actually gotten tons of road riding in these Northwest winters. But like all prototypes, there was room for improvement.
To read what improvements Mark made in the latest iteration of the D-Plus and the rest of the story, please subscribe on iTunes or the Web. Annual subscriptions are $16; individual issues are $4. Your money directly supports authors like Mark who contribute to Bike Hugger.
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