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

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18
votes
8answers
1k views

Why are battery-powered lights so popular?

Both on this site and "in real life", battery-powered lights appear to be at least as popular as generator-powered lights. I have always been slightly confused by this. To me, a generator-powered ...
15
votes
4answers
3k 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 ...
14
votes
8answers
8k views

What's the safest way to turn left from a right-side bike lane?

(United States road configuration and customs here. Sorry, those of you who drive on the left!) On my trip home, I use a bike lane near the right side of a very busy one-way arterial street; there is ...
14
votes
5answers
631 views

What to do after an accident?

This morning I almost witnessed an accident. I was a couple of hundred metres behind the incident but arrived at the scene when a pedestrian was picking a bike from the middle of the road, a ...
11
votes
3answers
3k views

Is it safe to ride on an unevenly bulging tyre?

Most of the tyre looks fine, true and straight but the section photographed shows bulging. The rim itself is true, is this safe to ride on?
11
votes
5answers
748 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 ...
11
votes
7answers
453 views

Hand signaling while decelerating

I'm nervous about hand signalling (taking a hand off the handle bar) while I'm decelerating: I'm worried that my body being pushed forward will act on the one remaining hand and change the angle of ...
10
votes
5answers
774 views

How do you know if you can trust your LBS?

I've visited a lot of bike shops in my time. There have been great ones, and scary ones. One thing I've noticed is that they all seem to have the best intentions. I've never had one deliberately rip ...
9
votes
2answers
3k 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).
8
votes
6answers
610 views

Prescription eye glasses and shoulder checks

I've never had prescription glasses but might like some. My left eye doesn't focus easily (I ride on the right side of the road, in Canada). If I look over my left shoulder, I can see behind me only ...
7
votes
7answers
454 views

Should I be wearing sunblock?

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 ...
5
votes
3answers
6k 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 ...
-3
votes
3answers
751 views

If I attached a “pointy” pool noodle to my bike, would it make me safer even from sadistic drivers?

A few sources suggest that mounting a foam pool noodle on the back of your bike can help stop drivers from passing too closely. Such noodles are available at my dollar store, unlike spring-loaded bike ...
13
votes
7answers
24k 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 ...
13
votes
4answers
1k views

Is complaining to companies about bad driving like howling at the moon?

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 ...
12
votes
4answers
1k views

Is it acceptable to cycle towards the centre of the lane on blind corners?

Some context: I live near a very congested main road, and everyone goes through the villages whenever it is blocked. If I am cycling, I have a continuous stream of cars passing me, even if they can't ...
12
votes
3answers
2k 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 ...
10
votes
4answers
292 views

Supervising a beginner in traffic

Let's say you persuade some significant other to ride with you in the city. You both have good bikes, they are inexperienced, and you are (I am) used to commuting, including in traffic. How do you ...
10
votes
5answers
2k views

Silencing a rattling u-lock

I'm not sure if they're all like this, but my u-lock is a bit loose between the two pieces, the U and the bar. The provided mount snaps very very tightly onto the U, leaving the bar to fend for ...
10
votes
4answers
1k views

Are bicycle helmets repairable or disposable?

Suppose I wear a bicycle helmet, and I fall hard and my helmet cracks. Do I buy a new helmet or can I try repair the old one with some glue?
10
votes
13answers
19k 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 ...
10
votes
6answers
866 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 ...
8
votes
2answers
377 views

How could I have avoided this accident?

On Sunday I wanted to use my free day and I planned to do a half-day ride with my mountain bike. The weather wasn't really good, but at least it wasn't raining as the days before. I rode up a ...
7
votes
2answers
453 views

What percentage of bike vs. car accidents at night could be avoided by good side visibility?

I'm trying to assess how important side visibility is at night on a bike.
6
votes
1answer
508 views

Is there a significant difference between the new all-mountain/trail and classic cross country helmets?

There is a new niche of "all mountain" helmets, like Fox Flux, POC Trabec, 661 Recon etc. They feature closed, rounded backward design, and claim to protect the brainstem better. I ride all-mountain ...
6
votes
3answers
248 views

Does a three foot passing law actually require drivers to give three feet?

Utah has a three foot passing law that states: Title 41 Chapter 6a Section 706.5 Operation of motor vehicle near bicycle prohibited. An operator of a motor vehicle may not knowingly, ...
6
votes
3answers
134 views

How can I tell if a helmet will be comfortable before buying?

Barring taking a helmet on a 50-mile ride before buying it: Some kinds of chin straps, for example, won't stay tight, and some kinds of cages aren't comfortable no matter how I adjust them. What ...
5
votes
8answers
673 views

Long sleeves for safety?

I took @Jason's and @Neil's advice and practiced wearing clipless pedals in cold weather. I fell three times (nearly four) last week, all at very low speeds: twice because of ice, and twice because of ...
5
votes
5answers
4k views

What are the accepted hand signals for cyclists in the UK?

see also "What are the accepted hand signals for cyclists in the US?"
4
votes
1answer
136 views

How does the risk of a cyclist colliding with a vehicle vary with the speed difference?

In a recent answer I asserted Statistics show that the probability of a collision rises rapidly after the speed difference between two road users exceeds 20 kph (12 mph). So choose paths without ...
4
votes
4answers
374 views

Should I ring my bell before going around corners?

I'm in a town in Bavaria, Germany and the local custom with the more dangerous corners is to honk a horn or ring a bell. Will this actually make me safer? Currently I am cycling in a half-urban ...
3
votes
4answers
1k views

What statutes govern the directing of traffic by citizens in Massachusetts?

Are there laws or statutes governing the directing of traffic by citizens or "members of the public"? A scenario I often encounter is one in which someone — typically another rider or pedestrian in a ...
3
votes
1answer
339 views

How to practice jumping over cars with disc brakes and SPD shoes?

This question here raises a sub-question, to avoid accidents. I am looking for some safe ways to practice jumping over cars. I use SPD shoes and disc brakes because I have noticed that I can burst ...
3
votes
1answer
194 views

Safe countries for touring (without having to take public trasport all the time) in EU? [closed]

I discussed today foreign ambulance guys and they told stories about sliced bicyclists in an ex-communist country. The country in itself is not special but rather the fact that it lacks proper roads ...
2
votes
2answers
202 views

Safety check for a used bike

I'm a poor student and I bought a used bike. I don't have experience with bikes and I want to make sure that the bike is safe for me because actually I found the bike in a garbage container and the ...
2
votes
4answers
192 views

Safe and proper (or vice versa) left turn in traffic

I'm new to commuting in traffic, and I realized immediately that the left turn (US traffic rules, right turn in UK) in an intersection with a traffic light is just dangerous. My basic questions are: ...
2
votes
2answers
1k views

Helmet Safety Standards Canada

I am looking at buying a helmet meeting ASTM F 2040, CPSC and EN 1078 safty requirements. Are these reasonable standards and will they protect my head in an axcident? Are these standards recognised ...
1
vote
4answers
2k views

Feedback on Bern Helmets for winter

I was thinking about picking up a new helmet this afternoon. My current helmet: Has had a few accidents Isn't very warm in the winter. Doesn't have great clearance for ski goggles. I was ...
-1
votes
2answers
135 views

Which countries should be avoided due to political reasons? [closed]

This question raises more questions here. Please, keep politics totally separated of safety and answer here political reasons not to cycle in some countries. The user Ambo100's earlier example about ...