Questions tagged [safety]

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

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5
votes
4answers
2k views

Turn signal lights for bikes

I am interested in buying turn signal lights for bicycles. I read something about here and in other websites, but I did not find answers for the following questions: For the point of view of a driver,...
0
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1answer
723 views

Which bicycle cameras are suitable for all weather 11+ hours food delivery cyclists [closed]

I am a bicycle food delivery boy. After a close pass forcing line variation followed by a threat of assault using a motor vehicle I now desire to mount cameras for evidence. I also want to mount ...
0
votes
1answer
308 views

When in a UCI race, does the helmet have to be to be fitted properly

I noticed that Nibali's helmet was very loose when he went down during one of the last stretches of the 2016 Giro d'Italia. A helmet is almost useless if it's not properly fastened. I understand that ...
5
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7answers
3k views

What bike/helmet camera resolution is needed in order to read licence plates?

Has anyone had any success with cameras that can resolve the license plates of vehicles that are near the bike? What resolution will be needed if we want to be able to read license plate later on? ...
2
votes
2answers
1k views

How fast can you go over speed breakers?

so I've only recently started biking. I have a hybrid, Montra Trance Pro. So I went pretty fast over a few speed breakers, and that made me wonder, exactly how fast can I go over a bump? The rear ...
16
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4answers
4k views

Does it make sense to complain to companies about bad driving?

On my commute in this morning I found myself in another situation where I was in conflict with another road user. (Briefly, a truck and I arrived at a roundabout at a roughly similar time, but I was ...
4
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3answers
833 views

Potential risks of sitting upright on the saddle during a daily commute

I ride my bike to work Monday through Friday, about forty minutes both ways. The elevation changes a bit but not too much. I'm not a huge fan of holding the handlebars, and I often ride with no ...
2
votes
1answer
1k views

Why do many full face bicycle helmets not conform to the ASTM F1952 standard?

It seems to me that a lot of full face bicycle helmets do not conform to the requirements of the ASTM F1952 standard for downhill bicycle helmets. Some noteable examples from the best selling list of ...
6
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2answers
466 views

In city traffic, is sitting more upright safer than more aero positions?

I like the handlebar height lower than the average road bikes I see in my city. Am wondering if I am putting myself in more risk.
5
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2answers
1k views

What is the safest type of pedal for all-weather city cycling?

I've been commuting by bike for many years on different types of strapless platform pedal and have always been nervous about clip-in pedals. Excluding any accidents caused by getting used to a new ...
1
vote
1answer
44 views

Will a Mishiki Pueblo Mountain 20 in frame hold my weight. I go about 330 [closed]

I weigh about 330 ... Will a Mishiki Pueblo Mountain Bike 20 inch frame will hold my weight?
3
votes
1answer
105 views

Running tires with significantly different pressures?

I ordered a replacement for one of the old Schwalbe Marathon 700x28C tires on my ancient road bike, and it turns out that "new" Marathons of that size are meant to be inflated to 80-110psi despite ...
3
votes
1answer
543 views

Is a long, high angle stem safe to use with a carbon steerer?

I purchased a hardly used road bike someone else had built up for a deal a few weeks ago, and am a bit disappointed with the fit - it's fine for rides less than a couple hours, but too aggressive for ...
25
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2answers
3k views

How should I handle a highway patrolman who stops me occasionally to give incorrect instructions about my riding duties?

I live near a minor Tennessee town and frequently ride the few miles into town and back on state highways. Part of the route (the less busy part, ironically) has a dedicated bike lane, but it's filled ...
4
votes
1answer
249 views

Does cannabis affect cycling performance?

Some of my friends like to smoke (using both traditional methods and vaporizers that produce no "smoke") or eat edibles before rides, they say it makes it more enjoyable. I always wonder if it ...
12
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6answers
1k views

My wife has Cerebral Palsy (CP) so can’t balance on a normal bike, what are the options so she can go cycling with me?

My wife has Cerebral Palsy (CP) so can’t balance on a normal bike, what are the options so she can go cycling with me? We don't own a van, the size of any "bike" is important as it will have to fit ...
3
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5answers
3k views

Is it practical to wear motorcycle half helmet for road cycling?

I am considering buying a motorcycle half helmet for cycling. I ride road bike for leisure. I would ride alongside with traffics quite often. First of all, I am looking for more protection. I am not ...
5
votes
6answers
620 views

Dealing with homicidal drivers [duplicate]

I do a 35km return commute into a big city. Almost daily, someone tries to run me over. Just in the past month I've experienced the following: I filter to the front of the traffic, wait at the ...
16
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5answers
11k views

Are 22mm tires too thin for commuting?

I recently switched from a mountain bike to a road bike with 22mm tires for commuting. I noticed right away that I could not do the things like hop over curbs with this new bike. I also got flats. ...
49
votes
3answers
5k 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 ...
2
votes
3answers
195 views

Nearly getting hit by reckless vehicles. What can be done? [duplicate]

Today I nearly got hit by a driver not paying attention: I was stopped, waiting to turn right. She was turning right off the road. She did not indicate. It was a quiet residential area, daylight. ...
2
votes
5answers
1k views

Looking for an old fashioned bicycle with coaster brakes & hand brakes for a woman

I am looking for an old fashioned style bicycle. I had a bad accident on a new bicycle and I feel safer with with an old-style bike. I've never crashed before and I've been riding bicycles for over 40 ...
50
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17answers
9k views

How to get over anger at inconsiderate drivers

Fortunately, I have very few strongly negative interactions with cars (most people generally seem to respect the way I ride), but those that do stick with me for a while. The scenario is almost ...
2
votes
2answers
259 views

Cyclist vs Van. Who is wrong in this scenario? [closed]

I often find that some drivers disregard cyclists right of way, and as a result put cyclists in danger. For example, when a cyclist takes their right of way, some drivers ignore this and assume the ...
1
vote
0answers
88 views

MTB Safety - Helmet [duplicate]

Does a standard bike helmet offer any real protection when cycling offroad? Looking at other people cycling offroad, fullface helmets are quite rare. Although to me it looks like a standard helmet is ...
8
votes
1answer
2k views

How to (safely) navigate a four-way stop

What's the safest way to navigate a four-way stop on a bicycle? I've found that some cars will ignore me, others will wave me through, and still others will just treat me as any other vehicle on the ...
2
votes
3answers
266 views

Questions about shifting from a new road cyclist

I recently purchased a used bike from my local co-op. I've ridden previously on fixed bikes with straight bars, but this bike is the first one I've owned where I have to shift and use drop handlebars. ...
2
votes
2answers
2k views

What speed of wind gust will cause a cyclist to swerve by 1m or more?

Today's weather forecast for London predicts gusts of 45mph. While there are many factors in determining whether its safe to ride, the possibility of getting blown into oncoming traffic rules out a ...
2
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3answers
642 views

Bicycle lights- Indicating in the dark

I am a product designer and am currently working on a bicycle lighting project and would really appreciate your valuable feedback. In England, turning left on a bicycle is not really a problem as ...
4
votes
5answers
3k views

Why are frame pads no longer readily available?

When mountain bikes first became popular people were a lot more likely to buy a full set of frame pads than a helmet. Obviously helmets had all of the aesthetic appeal of a lycra covered fan-heater ...
3
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4answers
3k views

Is it safe to ride with bent fork?

My bicycle went from this when I bought it: To this when I crashed (note the front fork bent where it attaches to the stem; front wheel almost touches the down tube): Update: Just looked at the ...
8
votes
8answers
610 views

Should I be wearing sunblock? [closed]

I spend the vast majority of my time inside, so I would like to start getting into cycling. I rode up to the beach a couple days ago and got some slight sunburn. I personally don't mind sunburn all ...
6
votes
1answer
553 views

What bicycle safe anti-car road spikes exist?

I am curious if there is a technology that allows bicycles to run over it, but will destroy car tires. From my understanding, usually poles like this are placed on trails to prevent vehicles from ...
34
votes
9answers
2k views

How can I be visible in the dark when I'm signalling a turn?

My bike and I are fairly visible at night--white light in front, red light in the back, bright yellow fenders, reflective tabs and a light on my helmet. I use hand signals to alert motorists when I'm ...
9
votes
6answers
5k views

How do you shift your weight when leaning on a turn?

When I turn I usually shift my weight on the same side I'm turning to. To ease the discussion let's assume we are turning left, on a paved road (no mud/gravel/potholes/grease/oil/ice/door traps). I ...
11
votes
4answers
22k views

How can I tell a bike is safe after a crash?

I was recently in an accident where a car pulled out on me. I hit the car around the front wheel and me and the bike went over the bonnet and landed on the road, the other side of the car. I was ...
13
votes
2answers
6k views

Does helmet padding contribute to the safety of a helmet?

Does the padding inside of a bicycle helmet contribute to the overall security of the helmet? I.e. do they cushion a crash in some way, or are they just there for comfort?
4
votes
5answers
2k 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?
18
votes
7answers
33k views

How do I bring an old bike up to speed?

I'm an adult that is new to biking due to a triple whammy of a childhood aversion to effort, my family moving to a town on the side of a mountain with steep roads, and my bike getting run over by a ...
7
votes
4answers
884 views

Fracture in folding frame - safe to ride?

I cycle every day because I live in a city and I find it a fun, fit and convenient mode of transport. I am not a cycling hobbyist, am only averagely fit and know pretty much nothing about bike ...
17
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5answers
5k views

How close do I have to be for effective drafting (while commuting)?

I commute and want to draft another bike, but still have room to stop when someone opens a car door in front of the rider in front of me. At what distance does drafting significantly reduce drag? Are ...
11
votes
3answers
3k views

Pizza box rear light

I work as a delivery man on a bicycle, so I often ride my bike after dark with a black pizza box attached. My rear light attaches to my seatpost, and is completely useless when the pizza box is there. ...
9
votes
4answers
24k 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 ...
9
votes
6answers
1k views

Pedal-powered head/tail lights

I'm planning to get a pair of pedal-powered head & tail lights to get my husband as a gift. He commutes ~11mi roundtrip every day to/from work. In summer, he rides a Cannondale touring bike. In ...
12
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5answers
5k views

How can I make myself and bike more visible during the day?

How can I make myself more visible during the day? Maybe something to put on my helmet (so it's easy to remember).
3
votes
3answers
560 views

When should I replace the brake cable?

Here is the picture of the cable from my rear V-brakes: As you can see it's worn down. Should I replace it now or is it safe to use it for some more time?
1
vote
1answer
6k views

Rear wheel constant bump

my rear wheel has a constant bump whenever I ride . I've done all that came to mind at firs. Deflated and checked the tire , checked the axel for bends , checked the ball bearings , made shure the ...
0
votes
1answer
570 views

Is Marseille a safe place to ride a bicycle?

I learned to ride a bike quite recently and I was thinking about moving to Marseille next year to study. I love bikes and I would love to be able to get one there and move around the city using it. I'...
26
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6answers
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 ...
22
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5answers
4k views

Is my stopping dangerous when Idaho Stop is de facto but not legal?

I've been bike commuting in the East Bay Area of California (5mi/day, plus public transport) for a few weeks now. I recently attended an in-class safety course, where I learned the fine for not ...