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Old 07-03-14, 08:59 PM   #1
tjspiel
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onboard radar for you bike, - useful or not?

It's integrated into a tail light that alters the frequency of flash as a car (or anything) approaches you from behind. A head unit on your handlebars uses a series of LEDs to tell you how far away the car is.


Saw it on slashdot.
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Old 07-03-14, 09:34 PM   #2
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I wonder how it reacts when you have a steel bike a few feet behind ? How pricey is it ? At the moment, I prefer my mirror, that can change with information however.
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Old 07-03-14, 10:16 PM   #3
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It doesn't appear to be able to differentiate between a car safely passing you in the next lane over and one barreling straight at your back.

If that's all it can do, it's not doing anything that your ears can't already do better.
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Old 07-03-14, 10:53 PM   #4
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Interesting idea. More data needed before I would jump on board.
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Old 07-03-14, 11:13 PM   #5
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It does tell you how far back an object is which can be vague just using hearing and rear view mirrors so it adds something at least. I've been speculating about this here off and on for a couple of years. The problem is that it doesn't tell direction as someone else noted, and also doesn't appear to indicate relative speed or an object's size. Until the device can detect both speed and direction it's too limited in my opinion. But one that does know the speed and direction of approaching objects could calculate an approach and give you various warnings and also some indication of how much time you have, and that would be very useful.
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Old 07-04-14, 04:06 AM   #6
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$149 pre-order.

i like to see technology development in general, along with good industrial design, which this has.

but, it is still below my must have threshold, not because of design/implementation/cost, i just don't see a use for it.
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Old 07-04-14, 06:51 AM   #7
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This is exactly what I was looking for. I was hoping for yet another way to blow money on bikes and bike accessories.
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Old 07-04-14, 07:01 AM   #8
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It needs to be Bluetooth enabled and integrated with the Strava app... so the it all can be displayed on the console mounted phone.
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Old 07-04-14, 07:38 AM   #9
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It needs to be Bluetooth enabled and integrated with the Strava app... so the it all can be displayed on the console mounted phone.
do people really ride with their phone on the bars?
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Old 07-04-14, 01:59 PM   #10
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Looks about 1/4 as useful as a mirror, for only 10 times the cost.
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Old 07-04-14, 02:00 PM   #11
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do people really ride with their phone on the bars?
Fair-weather cyclists who don't ride in full sun, maybe. I can't imagine that I'd be able to actually see my phone more than about 10% of the time. Also, I wouldn't anyway because it's distracting. I won't even do more than glance at my cycle computer when riding. Eyes on the road.
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Old 07-04-14, 02:22 PM   #12
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Maybe an audio threat indicator implying missle lock might tighten your ass.
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Old 07-04-14, 02:49 PM   #13
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Here is the link: Backtracker by iKubu - Dragon Innovation

It would help on those occasions that a car sneak by from the rear without you noticing it on the rear view mirror or car/road noise. It would give an alert to start looking on the mirror again. However, could be a distraction on busy streets. Someone would have to try and report! I do see some benefit to it.

Another observation, it has a lot of real state on the rear. How bright are the lights, are they useful for day driver?

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Old 07-04-14, 04:04 PM   #14
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do people really ride with their phone on the bars?
Only until the Bluetooth cycling glasses with heads-up displays connect to the phone in their jersey pocket. Blink-recognition (in the cycling glasses) will allow the cyclist to wirelessly connect with the electronic shifters and shift hands-free as well.

I've seen people with a phone mounted on their handlebars. I've also seen GPS units... and simple little (wireless) bicycle computers with thermometers. It's all relative I guess.

I've been thinking of downloading the Strava app. Right now.... I use a $10 wired bicycle computer... and transcribe the data to paper on a clipboard I keep in my garage. I call my current setup "government grade technology" (that's an inside joke).
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Old 07-04-14, 04:13 PM   #15
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Only until the Bluetooth cycling glasses with heads-up displays connect to the phone in their jersey pocket. Blink-recognition (in the cycling glasses) will allow the cyclist to wirelessly connect with the electronic shifters and shift hands-free as well.

I've seen people with a phone mounted on their handlebars. I've also seen GPS units... and simple little (wireless) bicycle computers with thermometers. It's all relative I guess.

I've been thinking of downloading the Strava app. Right now.... I use a $10 wired bicycle computer... and transcribe the data to paper on a clipboard I keep in my garage. I call my current setup "government grade technology" (that's an inside joke).
have you seen my BSO thread?
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Old 07-04-14, 04:38 PM   #16
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do people really ride with their phone on the bars?
I do. Actually a forward mount in front of the bars, primarily for the GPS direction (Osmand app) which has a high-contrast display, easily visible. It's also convenient for answering the phone, although I rarely do that, and, the strange part, is easier to carry there than in my pocket.

Bluetooth to the phone display is a good idea.
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Old 07-04-14, 04:46 PM   #17
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have you seen my BSO thread?
Yes.
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Old 07-04-14, 05:00 PM   #18
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do people really ride with their phone on the bars?
No not on my handlebars...
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Old 07-04-14, 05:04 PM   #19
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the whole idea of a phone/GPS on handlebars is nuts.

unless you're really in the outlands (middle east). even in europe, there's no need.

why is this done?
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Old 07-04-14, 05:32 PM   #20
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the whole idea of a phone/GPS on handlebars is nuts.

unless you're really in the outlands (middle east). even in europe, there's no need.

why is this done?
1) for GPS navigation
2) if you're playing with strava segments, or timing intervals
3) if your GPS reception is spotty and needs to be out in the open
4) you want hands free phone operation
5) the phone there isn't flopping around in your cargo pants or getting sweaty in your jersey pocket
6) other applications you may wish to have.

If I had a radar display on it, so much the better!
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Old 07-04-14, 05:32 PM   #21
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the whole idea of a phone/GPS on handlebars is nuts.

unless you're really in the outlands (middle east). even in europe, there's no need.

why is this done?
Having a map display in a visible spot seems useful for a variety of bicycling activities. Sure it's not needed when close to home in a familiar area, but for longer rides it's handy to see where one is and how to best continue to the planned destination. When traveling by car one is frequently on main highways where there are lots of signs indicating the distance and direction to nearby towns. But when cycling one is more often on secondary minor roads which have far fewer directional signs.
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Old 07-04-14, 05:36 PM   #22
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1) for GPS navigation
2) if you're playing with strava segments, or timing intervals
3) if your GPS reception is spotty and needs to be out in the open
4) you want hands free phone operation
5) the phone there isn't flopping around in your cargo pants or getting sweaty in your jersey pocket
6) other applications you may wish to have.
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Having a map display in a visible spot seems useful for a variety of bicycling activities. Sure it's not needed when close to home in a familiar area, but for longer rides it's handy to see where one is and how to best continue to the planned destination. When traveling by car one is frequently on main highways where there are lots of signs indicating the distance and direction to nearby towns. But when cycling one is more often on secondary minor roads which have far fewer directional signs.
When I cycle, I want to get lost. The journey is the point. My knowledge of fine dining has expanded exponentially because I get lost.

Is the same not true for you?

Or is cycling always a race?
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Old 07-04-14, 05:41 PM   #23
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When I cycle, I want to get lost. The journey is the point. My knowledge of fine dining has expanded exponentially because I get lost.

Is the same not true for you?

Or is cycling always a race?
I don't mind getting lost when I'm larking about, but I also like to get where I'm going and I sometimes like to get back in a timely fashion. Sometimes the destination is the point.
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Old 07-04-14, 05:56 PM   #24
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I don't mind getting lost when I'm larking about, but I also like to get where I'm going and I sometimes like to get back in a timely fashion. Sometimes the destination is the point.
If that is true, you'll know where you're going (at least I would) without GPS/map?

What am I missing here? I can easily navigate London/Kyoto/Shanghai without GPS ... simply by asking directions
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Old 07-04-14, 06:19 PM   #25
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If that is true, you'll know where you're going (at least I would) without GPS/map?

What am I missing here? I can easily navigate London/Kyoto/Shanghai without GPS ... simply by asking directions
People do buy and carry maps - there is a purpose for them and the GPS also serves that purpose.

You might as well say, "I don't need no cell phone because I can just talk to their face". And you might be right, but it doesn't mean that they don't serve a useful purpose.
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