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Sigma appears to have two design teams. One designs bike computers with one button, the other uses multiple buttons. Sigma also uses two displays. One display has the 2 and 7 easily distinguishable. In the other, 2 and 7 are identical except for the line at the bottom, so if you can't see the bottom of the display, you can't tell if it's 2 or 7. The 9.16 uses one button and has the better numbers. It's the same size as my 12.12 from 2012 (with four buttons and the ambiguous 2/7 on the display) but is much thinner. And like the 12.12, with its useless "fuel economy" feature, the 9.16 has a totally useless "calories" feature it could have done without. But aside from that, it's a useful computer with larger display than the 12.12. One button goes through 8 functions (speed always displays, making up the "9" in 9.16) as long as the bike is stopped. Once moving, the button cycles only through trip distance, trip time, average speed, max speed, and clock. And calories. Once stopped, you also get total calories (yawn), total distance, and total time. The other nice thing about this computer is that it's wired. Much more reliable than wireless, much cheaper, only one CR2032 battery to replace every couple of years, although I always replace mine on Jan 1 after I've done a total reset for the next year. One tricky item on this computer is that by default, it sets wheel size to generic settings (650, 27, 27.5, 700). 700 corresponds to 2095. If you want to set wheel circumference to actual millimeters, you must press the reset button on the back of the unit 11 times. This switches the calibration for wheel size to millimeters.Read full review
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I recommend it if you want a no-nonsense speedometer. Some things it doesn't do: 1. Does not have separate Trip vs. Lifetime data. Only one set of data, which you can reset. So, if you want to measure distance of your current trip, if you reset, it will erase all distance traveled. 2. Calories burned - very rudimentary, and inaccurate. Does not take input of rider's weight, which plays a huge factor in calculation. 3. The second button is on the back and very hard to press/activate. There are only 2 buttons on this device. What it does well: I got the wired version because did not want to deal with wireless connection / interference issues. This product just works, way more straightforward to set up that some previous/older versions.
Verified purchase: Yes | Condition: New
This item is really awesome—it does everything! The only caution I have is for people who want to use this on a spin/exercise bike: It’s very complicated to set up because it isn’t made for exercise bikes. I was able to do it, though, and measuring my cadence makes a huge difference in my workouts.
Verified purchase: Yes | Condition: New
Easy to calibrate, just enter tire size! Has all the data that I needed plus calorie burned feature.
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I replaced a Sigma BC8.12 with this 9.16. The functionality is a little better, and it works VERY WELL. The only reason I replaced the 8.12 was I had hit the screen with something heavy and it cracked. Not being sure how well it would hold up cracked, I decided to replace it. I'm glad I bought the BC9.16 as it fits my needs very well. Note that I mounted it on my stem so I have the handlebars open for other options. I have another wired Sigma on another bike and I love it as well. They're great products.
Verified purchase: Yes | Condition: New