Questions tagged [safety]

Riding safely, safety equipment, and safe places to ride.

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2
votes
1answer
96 views

Bell that sits above trigger shifter?

I'm looking for a bell that will sit above a trigger shifter on a flat bar bike. Placement is a safety issue: in this location I can maintain hands on bars, brakes, shifters and warn pedestrians at ...
17
votes
7answers
4k views

How important is the MIPS safety system for a bicycle helmet?

I'm shopping for a bicycle helmet. The ones without this "MIPS" feature can cost 549 SEK: https://www.sportson.se/produkt/miles-69415850 But then there is an identical-looking one with "...
3
votes
1answer
339 views

Is a chin strap with a cup safer than an under-chin strap?

Many helmets have chin straps to hold them on. One design uses a split chin-strap, where the strap splits into two forming a cup shape, one going just below the lower lip and one under the chin. In ...
4
votes
1answer
158 views

How should exactly the brake cable be fixed to V-brake caliper?

Regarding the V-brake calipers, where the cable is tightened with a screw: Should the cable go between the head of the screw and the washer (1), or should it go between the screw head and the body of ...
8
votes
1answer
2k views

Is it safe to ride with one missing chainring bolt?

I have a double chainring on my road bike but one of my chainring bolts has broken so I'm left with only 4 out of the 5 I'm supposed to have. Is it safe to ride? (just until replacements arrive)
24
votes
9answers
9k views

At what point does a road become too busy/fast to ride on safely?

Upfront, I'm willing to admit that I have some nervousness when it comes to commuting by bike that I need to get over. However, I want to know if all of that nervousness is unfounded, or if some of it ...
2
votes
2answers
288 views

Sun protective clothing interfering with bike mirror

I have had a "third eye" type bike mirror on my helmet for years. However, recently I have learned of some genetic predisposition to certain types of skin cancer which affect the skin on ...
14
votes
7answers
2k views

How to proceed when pedestrians occupy the dedicated bike path?

I go to work every day on my bike. In my town there are only few bike roads but luckily one is about half of my way to job, but a lot of pedestrians believe they are bikes and occupy the bike path. At ...
10
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8answers
1k views

As recumbents are low to the ground and hard to see, how to you use one safely on a normal road?

My wife thinks that she can't use a recumbent on the roads, as a car driver will not be able to see it. What’s the solution?
6
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2answers
692 views

How strong are pedals?

Pedals are obviously a critical interface with the bike. A broken pedal axle would be catastrophic, most likely causing injury or even death, especially considering that pedal failure would really ...
29
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10answers
9k views

Arguments for/against bike lanes?

What are the arguments for and against bike lanes? Can anyone summarize the best reasons they're good for and bad for cyclists and automobile drivers? For example, Are there some environments ...
6
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3answers
1k views

Does tire need immediate replacement?

I have received a hand-down bike from a friend that had a punctured inner tube which I have since patched, however during my fix I noticed that the tyre is not in the best condition when looking at ...
6
votes
2answers
2k views

Is my carbon frame done?

I have a carbon trek Emonda bicycle. Today, my rear derailleur got caught in my wheel. As a result, the rear derailleur is bent, the rear derailleur hanger snapped off, the chain got twisted and the ...
27
votes
10answers
48k views

Safety vests: Yellow vs. Orange?

What are the factors that should affect whether my visibility will be higher with a "high visibility Yellow" vs. a "high visibility Orange" vest or jacket? It seems too simplistic to simply say "...
9
votes
5answers
32k views

New Chain causing skipping on cassette - will this work itself out or is it unsafe?

I just installed a new chain on my 2002 Trek 2200 Road Bike. The old chain was a Shimano 9 speed that I installed 18 months and about 5000 miles ago. It had stretched modestly and was full of winter ...
5
votes
4answers
569 views

Elastomer in bicycle trailer hitch: is it important?

I have a bicycle trailer (Hamax Outback One). Recently I inspected the hitch as I was connecting the tow bar to the bicycle. The steel spring was getting rusty, but I do not think it's a big deal. ...
11
votes
5answers
2k views

Mounting the front light on the frame instead of the fork or the handlebar?

I've had my front light mounted on the handlebar for the last 4 years or so. I never liked the bulky look and more importantly, how it jumps around in a response to my handlebar movements (if I'm on a ...
7
votes
6answers
3k views

Safety of taking a bicycle to a country where they drive on the other side of the road?

Bicycles are different in countries where people drive on the other side of the road. Suppose I have a bicycle and I am moving to a country on another continent where people drive on the other side. ...
1
vote
1answer
87 views

Broken fork bearing crown race stays

this is my diy electric bike, but in the latest headset servicing (I had to change the seal of the top bearing), I noticed that I've a broken part on the top of the "bearing crown race stays"...
24
votes
13answers
12k views

Bicycle designed for one-arm usage?

I badly fractured my shoulder in a car accident and have limited mobility in my right arm after the repair. Is there a way for me to safely bicycle on city streets with one arm? Can I modify my ...
27
votes
10answers
4k views

Which states or countries have stop-sign-as-yield laws for bicyclists (Idaho stop law)?

In Idaho (PDF), bicyclists are allowed to treat stop signs as yields, and red lights as stop signs (essentially; see the actual law for details). This seems like a very reasonable approach, balancing ...
12
votes
14answers
55k views

What is considered the maximum safe downhill speed on a road bike?

I've heard between 30-40mph, but I am pretty sure I have hit 45 and felt safe and in solid control of my bike. If you look down and see you are above XXmph, you decide it is time to put on the brakes.....
61
votes
15answers
36k views

Why don't cyclists wear all-encompassing motorcycle-style helmets?

It is possible to get a helmet that covers your entire head and face, and in theory would protect you against more kinds of falls. In particular, Why don't bicyclists wear them, and why do ...
18
votes
8answers
7k views

Is cycling on this 35mph road too dangerous?

I'm thinking of bike commuting to work and there is a stretch of road with no sidewalk and 35mph speed limit. Is this too dangerous for biking? I'm not in the best shape so I can't go very fast. ...
4
votes
2answers
226 views

Dangerous feature on a new 20" wheel kids bike? EZBuild pedals

TLDR: Rather than threading a pedal directly into the crank arm this bike maker has an EZBuild feature. The pedal is threaded into a cast aluminum part at the factory that rotates around the crank ...
8
votes
5answers
2k views

Is My Rim Cracked?

Is my rim cracked? Do I need to replace my rim? Do I need to replace my wheel? (See left/first picture). If either 2 or 3 is Yes, what's the most frugal way to go about it? Notes This is the rear rim....
8
votes
5answers
2k views

Front tire & downtube clearance - extremely dangerous?

I recently moved cities and met someone to buy a used "vintage" bike from them. While test riding at a slow speed I gradually applied the brakes. The front brake seemed to jump from light ...
118
votes
32answers
59k views

How do I deal with a dog chasing me when I'm touring?

Once I was riding my road bike down a rural road. I heard barking over my shoulder and saw two dobermans running toward me. I can't think of a time in my life that I felt more endangered. I reacted ...
14
votes
10answers
31k views

How to keep glasses dry in the rain?

Today in the middle of my ride it started raining and I could barely see due to the amount of rain on my glasses. This is basically what I could see I have jokingly talked about using Rain-X on my ...
15
votes
9answers
2k views

Is cycling in the Netherlands without a helmet safer than cycling with a helmet in the USA?

We moved to Netherlands and no one seems to wear a helmet. My teenage child did have a helmet but said she lost it. When my wife wanted buy her a new helmet, my daughter said she will refuse to wear ...
7
votes
6answers
652 views

Should the laws be amended to allow cyclists to run red lights?

Ignoring the question of whether or not cyclists should or should not break the law by running red lights, should the law be changed such that cyclists are somehow exempt from stopping and waiting? ...
1
vote
1answer
127 views

Replacing an ebike's cable disc brakes with hydraulic disc

I have a Viking Gravity 250w 24v ebike. I'm just wondering if I can replace the braking system with a hydraulic type and what would happen to the wired braking safety feature? Would I have to retrace ...
53
votes
4answers
7k views

Does a helmet-mounted light affect the safe functionality of the helmet?

I am currently testing a bunch of lights for my (slowly) upcoming head lights review. Several of the lights can be mounted to a helmet using a mounting strap, like this: I'm wondering if having a ...
3
votes
2answers
187 views

Is this a helmet defect or not?

I bought a new Giro Savant helmet online and, after unboxing, noticed that the EPS foam seemed to be quite jagged and uneven at the intersection with the dial system (see photos below). This does not ...
16
votes
7answers
3k views

Turning right but can't see cars coming (UK)

I'm a newbie to cycling and I was wondering if I done the right thing or I should do something different next time. I'm coming down towards a main road where I can either go left or right. I want to ...
23
votes
6answers
17k views

Would a military helmet make a safe alternative to a bicycle helmet?

I am in need of a new bicycle helmet and have been exploring some alternative options. One possibility I am considering is visiting my local Army Surplus store and getting a helmet there. I only use ...
0
votes
1answer
681 views

How reliable is the “smart” brake detection on a $20 tail light? [closed]

Here are some "smart" tail lights I found on Amazon: Having the same looks, prices, description grammar, no-name random "brand" names and sometimes even stock photos and videos, ...
6
votes
3answers
410 views

Does a highly visible frame colour improve safety significantly?

Studies have shown that wearing hi-viz colours, particularly on moving extremities such as one's feet, coupled with hi-viz helmets and cycling shirts, increases the chance of been seen by a driver ...
26
votes
10answers
28k views

Is having your hands “on the hoods” of drop handlebars safe for braking?

I've never had a bike with drop handlebars, but may get one for commuting in busy London (likely a single-speed with mechanical disc brakes). This would mean riding with my hands mostly on the hoods, ...
7
votes
3answers
851 views

Tips for having partner drive support.

I am hoping to get some tips and suggestions for having a partner drive support for long rides (training or touring). Is it best to plan spots that they will meet you and can get to your location of ...
12
votes
2answers
2k views

What is the proper technique for crossing railroad tracks?

I cross railroads as perpendicularly as is possible, but that's all I know to do. Safety is a priority, speed not so much. Specifically: Is there an optimum speed? Should you pedal through them ...
0
votes
0answers
72 views

Dent in Lower Aluminum Frame Of Cannondale Cyclocross

Recently purchased this bike second hand. How concerned should I be of this dent? It’s about midway down the lower frame.
3
votes
1answer
139 views

What to look for in bone conduction headphones for bike voice navigation?

I am getting lost. Easily. And looking too hard at the screen (phone mounted on the handlebars) makes me lose concentration. Luckily, Komoot I'm trying now, and Google Maps, provide voice navigation. ...
2
votes
0answers
134 views

Does a standard exist for race boundaries?

I'm a bit puzzled at what happened at the end of Stage 11 at the 2020 Tour de France (on Wednesday 9 September 2020). For the record, I'm not defending Peter Sagan. His leaning is aggressive. I'm also ...
6
votes
6answers
3k views

Is riding shirtless safe?

During the summer, I like to go for rides on trails without a shirt. Is this safe? Also, related: is it rude to other people on the trail not to wear a shirt?
8
votes
1answer
214 views

Any reason for non-continuous mountain road barrier?

I have been cycling recently in Polish mountains and when riding through one of less occupied mountain roads, I have found many places where road barrier (that is suppose to secure bikers and car ...
11
votes
3answers
3k views

How do treads affect traction?

I've read that treads don't affect traction very much. This is why NASCAR cars have smooth tires. But, the road is not clean. They say you can't hydroplane on a bike, but what about a thin patch of ...
5
votes
2answers
378 views

Do high and narrow seat and back bending provide good bike riding posture?

I would like to ride a bike as part of daily commute on roads someday, as I rode a bike to school in another country in the past. But I have been bothered by some uncomfortable points from the bikes ...
2
votes
5answers
237 views

What are the hazards and risks if I keep using a worn rear tyre?

I found similar questions: What are the risks of fenders/mudguards? What are the risks of untrued wheels? But I haven't found a structured analysis on the subject of tyres. Stack exchange ...
5
votes
1answer
292 views

How to make sure that the brake cable anchor bolt properly holds the cable?

I am referring to the bolt, in the V-brake, that holds the cable on the opposite side of the noodle (as in this question). Yesterday I loosened that bolt to take the wheel off (I learned later that ...

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