Questions tagged [safety]

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

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5
votes
2answers
2k views

What's the best way to secure helmet straps?

On every helmet I've worn there is always some extra length to the straps that run through the buckle that secures the helmet to ones head. Most helmet's these days come with one or two small rubber ...
1
vote
1answer
227 views

Are there safety differences in helmets with ce marking?

I am considering to buy a helmet for everyday use in Munich (Germany). Most of the time, I will wear it when I go to work. I go to work at any weather. I want to have a helmet which has a light in ...
5
votes
7answers
3k views

How to handle motorists' dangerous behaviour with an impassable group?

I rode in a Velowagen (1) with over 300 cyclists on the national bike route in Switzerland, while on a narrow countryside road a few cars began piling behind us and one of them started trying to pass ...
8
votes
4answers
553 views

Motorists misjudge bicycle speed

This question is probably a little too location-specific but I hope it attracts some good answers Okay, here we go... Most cities in India do not have dedicated paths/lanes for bicycles We are ...
20
votes
3answers
6k views

How dangerous are my worn rims?

I took my bike for a service recently and was told it needed so many repairs that it was more cost effective for me to replace it. One of the repair jobs was to replace the wheels due to worn rims. ...
9
votes
2answers
3k views

Max weight of child, for rear bike seats - why is it always (seemingly) 22kg?

I had a rear child's bike seat on my old bike (which was stolen, boo hoo). It was a Yepp Maxi and was the kind that sits on a rack, rather than being mounted to the seat post. The maximum weight ...
2
votes
2answers
646 views

I nicked the tip of the taper on a bottom bracket spindle. Is it still safe?

I had to cut the crank arms off of a bike I'm working on. Used an angle grinder. Despite my efforts to avoid damaging the bottom bracket spindle, I nicked it in three places, all at the tip. The ...
18
votes
9answers
3k views

Is it really safer to ride in the road than on the sidewalk?

I am fairly new to riding, in a city where it is legal to ride in the road or on the sidewalk. In the areas where I need to ride, the roads are busy but the sidewalks are virtually deserted. I keep ...
3
votes
5answers
549 views

How to deal with anxiety caused by dangerous riding conditions stemming from poor lane design and inconsiderate fellow road users? [closed]

Location is Belgium. I stopped seriously riding my bike about 5 years ago. At the time, I used my bike for commuting to work for about 9 km one way. The main reason I stopped was because the timing ...
1
vote
0answers
80 views

Groups overtaking groups: how to communicate for safety?

I have just been back from a biking vacation with another fellow cyclist, and we have met a lot of other cyclists: from the most serious ones to those taking the bike once every eon. When we had to ...
4
votes
1answer
611 views

How to repair pedal snapped off crank arm? [closed]

The pedal axle snapped just where it enters the crank arm. This left the threaded portion of the pedal axle in the crank arm hole. How do I remove this to replace the pedal?
11
votes
6answers
3k views

What's the lowest safe cadence on a climb?

I recently installed a power meter and just used it to get up some rather steep 15%+ climbs. At my weight and lowest gearing (34f 30r) at a sustainable power level for my fitness (225w) this ...
3
votes
1answer
92 views

Are high racers safer due to enhanced visibility compared to low racers or classic recumbents?

Naively, I would expect that a high racer is safer in traffic than a low racer. With the rider higher up, she or he should be more visible compared to being closer to the ground. Considering that ...
6
votes
3answers
1k views

What is the drag / power lost to a safety flag?

I have a recumbent bike that has a safety flag on the top of a thin pole, so it flutters around higher than and after my head. How much power am I losing to this flag that could be used to power my ...
24
votes
6answers
48k views

What are the risks of untrued wheels?

I understand that wheels should be trued for efficiency. Are there any safety risks (or risk of damaging the bike) in using untrued wheels? Are the risks different between wheels untrued left-right ...
1
vote
4answers
253 views

Can this frame be used or is it done?

I have a cheap mens Huffy mountain bike which I noticed has 2 holes in the frame. Would this be too unsafe to ride?
3
votes
2answers
158 views

Influence of tire breadth on cornering

Due to a bike replacement, I recently started using 700x40C tires, after several years of using 700x35C or 700x28C. Whenever I corner, I have the impression the bike is behaving differently than what ...
19
votes
11answers
6k 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 ...
7
votes
6answers
2k views

Is cycling with crystal sunglasses dangerous?

I'm a commuter cyclist. I have a pair of Persol sunglasses with leaded crystal lenses. Do y'all think this is dangerous in case of an accident? I have terrible thoughts of wrecking and glass shards ...
23
votes
4answers
7k views

Does it make you safer to use lights during the day?

My bike light, the Cygolite Metro 360, has a "Daylighting" mode which flashes very brightly and is intended to be used during the day. Similarly, many tail lights have flashing modes. Obviously one ...
8
votes
2answers
290 views

Can I ride side by side with another cyclist in Switzerland?

When I ride on the road with someone (in the country), I try to ride on his side, and then when a car comes, I pull back in. This way, we can talk and have more fun during the trip. Sometimes, I don'...
15
votes
12answers
10k views

How (un)safe is it to ride barefoot?

Sometimes I use bike for a week long trip camping along, doing maybe 200km per day riding on asphalt road. In the end, my feet have bad smell, which is not super strange or concerning, but it does ...
3
votes
5answers
262 views

How to recognize a bad tire?

The most expensive "consumable" while operating a bicycle would probably be tires. Enthusiasts endlessly debate the relative merits of different sizes, profiles, tread patterns,inflation pressures ...
2
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5answers
2k views

What can cause the front wheel to lock up when going over a small bump?

I was going over a bump. When the front wheel hit the bump, it suddenly stopped moving, the rear wheel lifted off the ground, and I was thrown face-first onto the road. I sustained injuries to the ...
23
votes
7answers
9k views

How can I offer a test ride while selling a bike?

I am selling a bike to someone I don't know from Craigslist. I expect that the prospective purchaser will want to test ride the bike before making the purchase. How can I prevent them from riding ...
2
votes
2answers
175 views

Help please - Dent in top tube of double butted aluminium frame

I have a ridgeback velocity which is labled as double butted aluminium. Around the middle of the toptube is a dent shown in the photo. There is also a short line above it which I can feel with my nail....
18
votes
5answers
9k views

Child seat: how to keep the child's head from falling forward?

When my child falls asleep in the child seat, his head falls forward. How can I keep his head back? The child seat is a modern type with a back that can be tilted back to prevent that. It works, but ...
5
votes
2answers
203 views

Riding with a Gates belt past its due replacement mileage: can it snap or other risks?

I just purchased a belt drive bike (Gates CD). Maintenance free, according to the BS and what I have read online. The only attention is to replace it every 5000 km. Since I usually ride around 8000 ...
12
votes
9answers
20k 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 ...
2
votes
1answer
110 views

Yellow anti-rotation washer, Shimano Nexus 3 speed with trailer?

Should I keep or remove the yellow anti-rotation washer when installing a child trailer to my e-bike (EcoRide with Shimano Nexus 3 speed)? The trailer installs through the wheel axle (see attached img....
8
votes
7answers
3k views

Safety comparison, downhill mountain bike vs. downhill ski

My twelve-year-old recently tried downhill mountain biking when we were in Lake Placid. He found it thrilling and would like to continue with this new sport now that we are back home. I am hesitant ...
3
votes
1answer
1k views

Hydraulic Disc Brakes Not Locking Up

So as the title says my disc brakes are not locking up. They are gripping but not locking. My older brakes were leaking and i changed them with Shimano Deore BL-M596. I have searched online and found ...
9
votes
4answers
6k views

Is it a good idea to get a narrower front tire and a wider rear tire on a road bike?

I am currently running Continental Grand Prix S 4000 in 23-622 / 700x23C front and rear. I am about to buy a new set of tires for my road bike and am fancying a smaller tire for the front and a wider ...
23
votes
9answers
21k 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, ...
4
votes
4answers
2k views

Why do only downhill mountain bikers wear full face helmets?

A lot of cyclists are concerned about safety and having the proper equipment, but I have never seen a cyclist riding in the city with a full-face helmet, nor have I seen a full-face helmet marketed ...
2
votes
2answers
120 views

Axle is too short

I recently bought a second hand bike which was originally sold with a flip flop hub to fix up as a project. The person I bought it from gave me a rear wheel with a geared hub. However, when I put ...
8
votes
4answers
3k views

Why is an old chain unsafe?

I recently took my bike in for a service and the mechanic urged me to replace my chain, potentially at great cost (might need a new wheel). He said it might jam or pop off. He couldn't explain to me ...
5
votes
3answers
734 views

Front wheel oscillation

I'm not sure if oscillation is the right way to describe this, but when I'm riding at speed (say around 35-40 km/h) and take one hand off of the bars, the bars shimmy or oscillate – kind of like they ...
5
votes
2answers
161 views

Which kind of test has bike parts to pass to be sold?

This is a question regarding bureaucracy/testing. What are the quality tests / standards that a bicycle and/or its parts need to pass before access the market? I am thinking about Germany/USA and ...
10
votes
5answers
1k views

Which parts of a wrecked bike would be OK to use or sell?

A few months ago I was in an accident with a car on my way home from work (oncoming car turned left in front of me). My bike was severely damaged, the frame broke in two and the front wheel is bent ...
26
votes
11answers
48k views

Carbon bikes make me nervous. Can you ease the tension?

Is it only me, or do Carbon bikes make others nervous! I realize that carbon fibre is strong, but for some reason, having a bike that isn't made out of metal seems like asking for trouble. My main ...
15
votes
5answers
1k views

Most favoriable collision with a car? How should I act before collision, supposing enough time?

Suppose a car is going to collide with you. What can you do to minimise the consequences? By collision I mean that it may be intentional or an accident. Anyway I am looking for tips on how to act in ...
2
votes
7answers
3k views

Best Tires for Cannondale Bad Boy 4

I'm just getting into biking and last week I just purchased a Cannondale Bad Boy 4 from REI. They still have it in the shop as I'm in the processing of moving and they agreed to hold onto it for me. ...
95
votes
5answers
27k views

Safety data: Which is safer, head/tail lights which blink or emit a steady beam?

My head and tail lights can be set to blink or emit a steady beam of light. I usually set my rear (red) light to blink, because I believe it makes me more visible at night. My friend argues that it ...
18
votes
6answers
6k views

Night cycling: Is it worth using electroluminescent wire?

It's currently winter in the UK, so for my commete to and from work I need lights and reflective surfaces for safety. I've read about local people losing their lives cycling, so I don want to make ...
2
votes
1answer
1k views

Child sleeping in bike trailer

My husband and I like to take our 3.5 year old daughter for bike rides and she rides in a trailer. But the problem is that she is sitting idly on a calm, mostly smooth ride on a bike path surrounded ...
20
votes
6answers
7k views

Should unconventional colors be avoided for lighting?

Red/amber lights in the rear of the vehicle, white lights, in front of it: that is the good old convention and certainly switching their places is a bad idea. A quick search, however, shows other ...
7
votes
2answers
2k views

How does a neck brace work?

I've done a bit of research but can't seem to find much information on how neck braces actually work to protect the neck. There are many views on whether they are actually effective in reducing ...
1
vote
1answer
166 views

Frame with dent

I recently bought a bike and then realized it had a dent on the top tube. I would like to know your opinion if it is safe to ride. The bike is a Devinci Cameleon made from double butted aluminium. The ...
8
votes
5answers
4k views

Camera alternatives for commuting (2014 version)

After a few near misses by cars and two mates actually being hit I want to start using a camera for taping video footage. These are my requirements: Long battery life (3h+) Inconspicuous (...