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Product Review: Exposure Diablo MK.2

Posted by: Shannon Boffeli |June 4, 2011 3:20 AM
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Product Review: Exposure Diablo MK.2

written by: Kevin Day


Iíve been anxious to get out on the trails in the dark to test out my new light from Exposure. The 900 Lumen Diablo Mk.2 with a One Cell Piggyback battery. I took the light camping a few weeks ago and was pretty impressed at how bright it was. I had to find a few good nights in the near future to get out and really give it a test on the bike.

Off I went. From my front door, the trailhead is about a ten minute ride. Good time to get the blood flowing and make any adjustments to the bike or in this case, the light. I decided to ride the Top Fuel SS, because earlier that day I spent about 2.5 hours on the Superfly, on the same trails. Iím still trying to figure out the 29er pros and cons and even though the Top Fuel has 19 fewer gears and some travel in the rear, it would still prove to be a good test.

As I was riding I swapped through the three different settings; high, medium and low. They all put out enough light to stay comfortable on the trail, but of course the high beam was the sweet spot. With 900 lumens of near daylight pumping from the top of my helmet, I rode the shoreline trails above Davis County for an hour and a half. The high beam a blazing and the Top Fuel ripping. More on the 26 vs 29er later.

Besides how well the light worked and lit up the trail, I was really impressed with the mounting hardware. Super simple and very easy to adjust. I found myself from time to time quickly reaching up to tilt the light up or down a tiny bit depending on the trail. At first I was a bit concerned that with how easy it was to adjust that it wouldnít stay in place but it was rock solid. It held perfect on my helmet, didnít have any impact on the fit and because the light and extra battery pack are so small it wasnít bad having them both attached to the helmet.

I set off at 9:30 p.m. and got back around 11:00. High beam 99.9% of the time. When I got home I took my helmet off and set it on the kitchen table and kept the light burning. I was up and about for a little while longer and at about 11:45-12:00 the light began to go into power-save mode. In which the light switches back and forth from high to medium. The power saving mode still puts out enough light to pound out some night laps during any 24hour race. About 12:30 the Diablo with its Piggyback Single Cell battery attached, began to loose itís luster as was I. I donít know the exact time it shut down completely because I fell a sleep.

Iím very impressed with how long it kept pumping out some serious lumens on my kitchen table after a flawless hour and a half on the trail. Given its size and weight (110g), this is by far the best in both form and function, light Iíve ever used. I canít even imagine what it would be like to ride with Exposures MaXx D with its 1200 lumens or Six Pack burning an incredible 1800.

The Diablo is an excellent light for anyone looking for a race ready light setup thatís affordable in price. Big things come in small packages with the Diablo and I think itís worth grabbing an extra Piggyback Single or Triple Cell to extend the lumens. Without adding the single or triple cell, it will run 1hr. 10min. Just enough time to roll a quick 24 Hours of Moab lap

The charging unit is great as well. Plug it into the wall or charge it via USB. Pretty convenient if youíre using it on the commute to and from work. The Diablo also comes with a FREE 2 year warranty, fuel gauge and mode indicator. Itís run time on High: 1 hr 10min. Medium: 3hr. 10min. and Low: 10hr. Plus there are a number of accessories you can run on the Diablo through the Smart Port.

Kevin Day is a long-time mountain bike racer who competes at the professional level for the Kuhl mountain bike team. You can view more of his product reviews, racing tips, and commentary on the MTB lifestyle at

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Roland 03/15/2012 7:23 AM
I just wondered about the grade in the <a href="">Lumen Testing</a> and how does it fair?
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