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Mountain biking and cycling at night.

Thursday, February 28, 2013 by  
Filed under Daily Blog

February
28
2013
Unavailable for comment.

Unavailable for comment.

Until recently I never had much interest in riding at night, and had given the prospect of doing so practically no serious consideration. In fact, about as far as I ever got in the thought process was, “You know what the problem with mountain biking and cycling on public streets is? It’s that these activities are not nearly dangerous enough. Hey, I’ve got it! I’ll ride in the dark!” 🙂

Sarcasm aside, almost all of my friends are huge fans of riding at night, and they frequently do group nighttime mountain bike rides and urban assaults. Over the past couple of months my buddies have slowly chipped away at my apprehension and piqued my curiosity.

Okay, okay… I’m in.

The Gemini Duo LED light.

The Gemini Duo LED light.

My friend Rob recommended the relatively new Gemini Duo light. Online reviews backed up Rob’s first impressions of the Duo, and so I ordered one with the 4-cell battery pack. The light will arrive today.

At just 63g for the actual light head, the Duo is very light-weight. The 4-cell battery pack adds just 229g, which is pretty amazing considering how long the device runs on a single charge (see the photos below).

The Duo puts out a tremendous amount of light: 1,400 Lumens when running at 100% power.

The package comes complete with mounts for helmet and handlebars.

Check out these beam shots and run times (click to enlarge):

 

Gemini Duo @ 20% power. 25+ hours run time at this power level (4 cell battery).

Gemini Duo @ 20% power. 25+ hours run time at this power level (4 cell battery).

 

Gemini Duo @ 60% power. 6.5+ hours run time at this power level (4 cell battery).

Gemini Duo @ 60% power. 6.5+ hours run time at this power level (4 cell battery).

 

Gemini Duo @ 100% power. 3 hours run time at this power level (4 cell battery).

Gemini Duo @ 100% power. 3 hours run time at this power level (4 cell battery).

 

I have to admit, I had no idea just how powerful modern high-end bike lights are. I mean, just look at that beam shot of the Duo running at 100% power… that’s pretty impressive for such a small and lightweight device–especially considering it can run for 3 hours at that level of brightness.

I’ll post my thoughts once I’ve done a few rides with the Duo lighting the way.

I also ordered this Portland Design Works Danger Zone Tail Light. I’ve been wanting a rear flasher anyway, as they really help make the bike visible to motorists coming from behind. This particular flasher is incredibly bright and attention-getting (check out the videos on the Amazon product page).

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