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Bike mirror use and non use

12462 Views 92 Replies 49 Participants Last post by  mmlee
Whether I'm cycling on a highway shoulder, in urban traffic, or on a group training ride, I find a cycling mirror to be indepensable. When I'm on a group ride I'm surprised by the few riders that use them.

Before totally bashing the idea of wearing one, see if you can try one first. you may have to borrow a friends.

Ok now, let's hear your pros and cons. I'm curious and eager to respond.
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I don't use a mirror and never have. I don't know if I could ever trust a mirror enough to cross into a lane or make a turn exclusively with one,
I haven't seen a single person advocate that. On the contrary several people said you need to still look back as well when using a mirror. Just like when driving a car.

Turning your head does make the body and the bike swerve at times, even to the most seasoned veteran.
Hmmm swerving sounds quite dangerous. Esepcially if you're riding in a group and someone is crossing your tire.
I haven't seen anyone claim they use a mirror to avoid a car coming up behind them. I don't know if a mirror could overcome a drunk driver straying to the right. It's possible, I suppose.

I use a mirror to keep aware of what's going on around me, similar to how I drive. I'll occasionally flick my eyes to it so that I'm more aware of my surroundings. For example, if I encounter unexpected debris in the road it's nice to know I'm not going to take out an overtaking rider or veer into the path of a car if I move left to avoid it.

I also use it to check if traffic is clear before merging into a traffic lane, especially if I'm moving fairly fast. For example, I came down a descent this morning at over 45mph. On that particular section of road I prefer to use the traffic lane. I do not want to turn my head around to check for cars when I'm going that fast.

Lastly, helmet or glasses-mounted mirrors have no blind spots. What's not to trust?
I don't use a mirror and never have. I don't know if I could ever trust a mirror enough to cross into a lane or make a turn exclusively with one, I am used to turning my head. Turning your head does make the body and the bike swerve at times, even to the most seasoned veteran. I won't comment since I have never used one, but I can see where it would help with those occasional glances back in addition to turning your head to look.
You're sort of getting it, but change "occasional glances back" to "frequent checks so you always know what's behind," and you may see the usefulness.

As for "trust," there's nothing untrustworthy about a mirror, as long as you understand its field of view and blind spots. If you look in the mirror and there's nothing there, there's nothing there. You just have to know to check the places the mirror doesn't see. That generally does mean you turn your head and look to the side before actually moving over.
I use a Mirra-cycle- a decent-sized mirror that attaches to the brifter between the lever and the hood.

Wouldn't ride without it. It gives a much better view than turning your neck, and takes your eyes off the road far less, as it only takes a glance to see the full picture behind you.

I also wear a hi-viz jersey.

Safety should be a cyclists number-one concern- and a large part of safety for a cyclist is being seen and seeing others.

You can get killed or seriously injured out there. Do what you can to increase your odds of returning home safely, in this day of distracted/drunk/drugged-up drivers.
I haven't seen anyone claim they use a mirror to avoid a car coming up behind them.
I do!

There's one place just after I leave my house, where there's a long steep hill that I take at maybe 8MPH on a good day. It's a two-lane country road with nowhere to go on the side- you just have to take the lane.... I always check my mirror as I'm approaching that hill, before I get to the last place where there's a little spot where I could pull in. With my mirror, I can see 1/2-3/4s of a mile behind me in that spot...so if any cars/trucks are coming, I can pull in and let them pass....rather than have them stuck behind me, on my tail...or trying to squeeze past, or passing me blindly over the double yellow where they can not see what's coming the other way.

Other day, I'm going down a narrower unlined country road, up a moderate hill, and I see this cube van in my mirror. I move over asclose to the right edge of the road as possible and hold my line.....and the guy passes me with just inches to spare! Had i not had the mirror, I would not have known he was there (it was a very quiet truck, and the wind was in back of us)...and wouldn't have been over far enough to avoid being hit/or might have strayed to the left and into his path (He was hugging the right side, to avoid anything that might be coming the other way over the hill).

I can't see how anyone could ride without a mirror.
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Here's a story, and it has happened to me many times. I'm riding on a road with a narrow lane and little shoulder, so I'm riding in the middle of the lane to discourage overtaking motorists from passing too close for safety. I'm checking the mirror frequently, so I know if a car is coming up behind. On a blind spot (curve or hill), a car begins to attempt a pass, but I can see that there's oncoming traffic in the other lane. I put out my left arm, palm facing back, and move even further left in the lane. The overtaking car understands the "don't pass now" signal and stays behind me. As soon as there's a safe spot for the pass, I move over a little and signal them to come around. Often, I get a "thank you" wave from the driver. If they still try to pass too close for comfort, having the mirror allows me to move over at the opportune moment to create more space (if you move right too soon, some drivers will follow you over.)
This is an excellent point! Mirrors are great for lane control. You can take control of the lane way before you'd ever hear a car. If you can hear the car, it's likely too late to take control of the lane.

Many of the roads I ride on have no shoulder. It's white line then usually a ditch. So I tend to ride well into the lane. If I see a car behind in the distance, and it's safe ahead, I'll move closer to the white line to give them more room to pass. Because inevitably if I ride farther in the lane drivers get p!ssed and buzz me with their mirrors.
Whereas if there's a blind corner, or a car ahead, I'll keep the lane so they don't attempt to pass me.

YMMV. I don't try to persuade experienced riders that they should use a mirror, but I do get annoyed when people discourage new riders from even trying them, when they base their arguments on false premises.
What's really disturbing is the number of people who've never used a mirror, yet insist they're pointless.
Ironically, there's not a whole lot saying they've tried them but find them pointless and would never use one.
Another thing I like about mirrors is that they allow me to be aware of what's behind me without having to constantly turn my head. This comes in handy on popular cycling routes, because if I notice a faster cyclist approaching me from the rear, I can move over and out of their way before they have to swerve around me.

I really liked having the mirror when another female cyclist slowly caught up to me on a climb and sat on my wheel for quite a while before passing. I'm not sure I would have noticed her without the mirror. If someone is on my wheel I want to be aware of it at all times.
Another thing I like about mirrors is that they allow me to be aware of what's behind me without having to constantly turn my head. This comes in handy on popular cycling routes, because if I notice a faster cyclist approaching me from the rear, I can move over and out of their way before they have to swerve around me.

I really liked having the mirror when another female cyclist slowly caught up to me on a climb and sat on my wheel for quite a while before passing. I'm not sure I would have noticed her without the mirror. If someone is on my wheel I want to be aware of it at all times.
:thumbsup:

I'm not a fast rider, and consequently get passed regularly. Without a mirror I wouldn't know an unannounced rider will suddenly be right next to me. "On your left" seems to be the exception, rather than the rule.

I get passed by female cyclists, too. Some of them are pretty damn fast!
:thumbsup:

I'm not a fast rider, and consequently get passed regularly. Without a mirror I wouldn't know an unannounced rider will suddenly be right next to me. "On your left" seems to be the exception, rather than the rule.

I get passed by female cyclists, too. Some of them are pretty damn fast!
I'm actually a female cyclist myself, but usually get passed by men much more often than women. Most women around here don't seem to be interested in suffering up hills like I am, so being passed by another woman on a climb is a rarity.

I'm sure if I lived in the Bay Area, I would get my ass handed to me by other women much more often. There's many more cyclists down there.
Another thing I like about mirrors is that they allow me to be aware of what's behind me without having to constantly turn my head. This comes in handy on popular cycling routes, because if I notice a faster cyclist approaching me from the rear, I can move over and out of their way before they have to swerve around me.

I really liked having the mirror when another female cyclist slowly caught up to me on a climb and sat on my wheel for quite a while before passing. I'm not sure I would have noticed her without the mirror. If someone is on my wheel I want to be aware of it at all times.
Why wouldn't you be riding as far to the right as possible, consistent with safety, to start with? :confused:
Why wouldn't you be riding as far to the right as possible, consistent with safety, to start with? :confused:
Because that's where all the glass and rocks wind up.
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Make no decision about cycling based on what anybody thinks about how one is supposed to look. Unfortunately too many are worried about what someone else thinks instead of safety or common sense.

I think a mirror is a necessity, but I'm also the guy who runs flashing front and rear lights at all times. I'm sure some laugh at me, but I'd rather look stupid to some cyclists than not be as safe as possible.
ditto....
Why wouldn't you be riding as far to the right as possible, consistent with safety, to start with? :confused:
Umm no that is completely contrary to safety and contrary to the law.
Door zones, gravel, potholes, glass, no shoulders.. Oh My!

Generally there are bicycle-specific statutes requiring us to ride as close to the right as practicable. “Practicable” means that, if the law in your area requires it, you must ride as far to the right as can reasonably be accomplished under the conditions. It does not mean that you must ride as far to the right as possible, although police will often interpret it that way. “As far as possible” may not be reasonable, because it may not be safe, whereas “as far as practicable” means essentially “as far as is safe.”

In the Uniform Vehicle Code (a suggested standard for states; actual state laws may vary), cyclists are required to ride “as close as practicable” to the right if they are riding “at less than the normal speed of traffic at the time and place and under the conditions then existing.” So if a cyclist can keep up with traffic, then he or she can legally ride in any lane. If a group of cyclists are the only vehicles on the road, then they are setting the speed of traffic. But for common courtesy and good public relations, they should ride as close to the right as is safe when cars would like to pass.

There are exceptions to this rule—for example, when the cyclist is passing another cyclist or preparing to make a left turn. And the code elaborates on hazards that make riding to the right less feasible, such as “fixed or moving objects, parked or moving vehicles, bicycles, pedestrians, animals, surface hazards, or substandard-width lanes.” Also, on a one-way road with two or more lanes, a cyclist may choose instead to ride as close to the left as practicable.

So who decides how close to the edge is safe? You do, although your decision needs to be reasonable. For example, near parked cars, you determine how close to the “door zone,” the area where doors would be a hazard if suddenly opened, you can safely ride. You determine if broken glass or a narrow lane poses a threat that justifies riding farther to the left. You are not required to ride to the right and weave at the last moment to avoid hazards; that would be unsafe. Instead, choose a road position that allows you to ride a straight, predictable line, as close to the right as is safe.

What happens if a police officer decides that your road position is not legal? Because the officer’s determination is as subjective as yours, a court will need to make a judgment. State laws vary, but one thing is clear—you have the right to the road, and with that comes the right to make reasonable decisions about your safety.
Where You Belong | Road Rights | Bicycling.com
According to the PA bicycle drivers manual.
Bicycle Information, Pennsylvania Bicycle Driver's Manual - Chapter 2: Where to Ride on the Road
WHERE IS THE ROAD EDGE?

Normally, slower traffic keeps to the right, and faster traffic passes on the left. Since your bicycle is usually slower than other traffic, you usually ride near the right edge of the road. But how far to the right?

Generally, the usable width of the road begins where you can ride without increased danger of falls, jolts or blowouts. A road may have a gravel shoulder, its edge may be covered with sand or trash or the pavement may be broken. Don't ride there. Closer to the center, there's better pavement, which is swept clean of sand and debris by the passing cars. The right side of the road begins here.
Why wouldn't you be riding as far to the right as possible, consistent with safety, to start with? :confused:
I am when there's traffic anywhere near, but on a MUP or very lightly traveled road, I will move over a little more to the left. On MUPs people typically ride in the center of the lane.

I always move back to the right long before traffic has to slow down to get around me, so I'm not p!ssing people off.
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Why wouldn't you be riding as far to the right as possible, consistent with safety, to start with? :confused:
replace 'possible' with 'practical' and you might be on to something...
replace 'possible' with 'practical' and you might be on to something...
Excellent point.


1) If there's a bike lane; I ride in it.

2) If there is no bike lane but space for a parked car; I ride where a parked car's centerline would be.

3) If there are parked cars; I take the whole lane via ride where the passenger-side tires would be on a car driving in the lane.

4) If there is no bike lane and no space for a parked car; I ride as described above: Take the whole lane via ride where the passenger side tires would be on a car driving on the lane.


These are neighborhood roads and downtown streets where poasted speeds are at, or less than 35MPH. I stay away from major streets and boulevards where speeds are over 35MPH. It's just not worth riding on those. My only exception to said roads is if I'm riding said roads between 0200HRS and 0600HRS. No one is on said roads during those hours.

The 30 mile loop to work that I take, I start at 0400HRS and ride country roads where poasted speed is 50MPH. The only vehicle I see is a County Sheriff patrol car.
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The most telling aspect of this thread is those belittling a mirror or negating its utility mostly admit to never using one, never seeing the need for one, and never intending to use one, while those who are proponents of using mirrors appear to be cyclists who have used them.

With this thread in mind, as I rode 35 rural miles this morning, I gave thought to how momentarily my vision was diverted to my mirror, giving me complete situational awareness of the 1/4 mile behind me, without any real distraction regarding the riders, road and conditions in front of me. When I turned my head I spent considerably more time unable to observe to my front.

I don't get it, I guess.
The most telling aspect of this thread is those belittling a mirror or negating its utility mostly admit to never using one, never seeing the need for one, and never intending to use one, while those who are proponents of using mirrors appear to be cyclists who have used them.
Yes, the negative mirror people almost always have to resort to cheap put-downs to make themselves feel good about their choice. Then they come out with negatives that don't even make sense as they haven't any knowledge based on actual experience. I've been using my home-made stealth mirrors for very close to 40 years of riding, training and racing and I've yet to find one actual negative with their use. How come the negative put-down artists can come up with all kinds of negativism based on no usage and personal experience? Kinda tells us just how much their opinion are worth doesn't it?

With this thread in mind, as I rode 35 rural miles this morning, I gave thought to how momentarily my vision was diverted to my mirror, giving me complete situational awareness of the 1/4 mile behind me, without any real distraction regarding the riders, road and conditions in front of me. When I turned my head I spent considerably more time unable to observe to my front.
Yeah, we spend about 10% of the time the "head turners" use don't we? A quick glance in the mirrors is all that's needed. Actually, unless they have necks like owls, they can't look behind with just a neck swivel. All they can do without turning the whole upper body is a "shoulder check" and that only tells them who's on their hip.

I think the non-users should keep silent so as not to expose their ignorance. If they have a few decades of mirror use (ok I'll settle for a few years) and have a list of negatives then I'll listen.

I don't have a problem with anyone who chooses not to use one (unless they're in the same riding group as me); I just wish they'd stop justifying their choice by belittling others.
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This. Best $15 I ever spent on cycling gear. Stealth and works like a charm. No dental tool hanging off my helmet or goofy bar-end mirror. I thought it might be distracting to my forward vision before I tried it but it is no more so than the rear view mirror on your car's windshield.
I ride in an area with trailer trucks and roads having dual lanes on each side. Posted speeds in some areas are over 50 mph with really terrible debris and high storm drains and gutters. It's as if they paved one pass of tarmac and forgot to repave at the height of the storm drains themselves. [Storms stick up 3-5 inches above road line] Very dangerous sections of roadway. I use the dot mirror on the inside of the eye wear too. Excellent. Amazingly transparent and seamless while riding. I dare not to turn a head around because of the bad road shoulders in front of me. In these cases this type of mirror warns me of up coming trailer truck traffic. We've has cyclist killed on these roads many times over the years.

I wouldn't use an ear piece clip-on mirror for fear of crashing and then impaling an eyeball with the brace-rod. That my feeling.

on a side note.

Beer Bottle cap mirror looks cool. But it could slow a person down from increase wind resistance j/k. If you turned the Beer Bottle Cap around and stared at the Beer Cap itself, it could motivate me to go faster due to the euphoric nature and Pavlov effect for brew and getting home quicker. LOL

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replace 'possible' with 'practical' and you might be on to something...
"possible, consistent with safety" = "practical" IMO.
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