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

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9
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3answers
934 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 ...
9
votes
6answers
6k views

What are the advantages of filling tires with Nitrogen instead of air?

I am completely new to riding bikes and know that are usually filled with air but nowadays some people fill them with Nitrogen instead. I don't know why they prefer to fill their tires with nitrogen ...
9
votes
4answers
256 views

Night Riding With Heavy Traffic

I live in a fairly urban setting and there are plenty of cars around when it gets past dark. The main point of having a bicycle light/backlight (I contend) is not for you to see, its for others to see ...
9
votes
3answers
3k 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 ...
9
votes
2answers
333 views

Baby Transportation Safety Statistics

Is there a resource comparing different safety statistics for transporting babies on bicycles, specifically using different methods? I'd like to see some information about how safe it is to compare a ...
8
votes
9answers
3k views

Is standing up and pedaling on multi-gear bicycles a bad idea

After reading While pedaling standing up, bike crank gives in as if shifting, what is causing this? , I was thinking "one should probably not be standing up to pedal under normal circumstances". Is ...
8
votes
7answers
782 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?
8
votes
5answers
2k views

How can I prevent cars from passing me too closely?

Recently, a driver buzzed by me, leaving just a couple of inches between my handlebars and his car. It was very scary. In general, how can I prevent cars from passing me too closely? Please cite ...
8
votes
5answers
3k views

Recovering confidence after a fall

One month has passed since I fell on a mountain bike trip. The accident wasn't critical, it just left a huge scratch. The accident happened during a fast descent when my front tire hit a little crack. ...
8
votes
8answers
394 views

How to cope with being rattled by the wake of a fast car?

There's one long road that I bike on that has a decent bike lane, but the speed limit for cars is 50 mph. Needless to say, they drive 60+. Often I find myself being shaken or rattled by the turbulent ...
8
votes
7answers
511 views

Do any bike sharing schemes provide a way to rent or share helmets along with the bikes?

Do any bike sharing schemes provide a way to rent or share helmets along with the bikes, either in a kiosk or through an arrangement with local businesses? None of the schemes that I've used (London, ...
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 ...
8
votes
4answers
1k views

Is it generally the case that bikes are allowed to use the “full lane”?

Many blogs and other sources of information on cycling advocate "riding like a car" or "taking the lane" as a way to increase safety and visibility when riding on a road. But such advice presupposes ...
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
5answers
912 views

Is it more dangerous to use a bike lane or to ride in the road proper?

When I ride my bike, depending on which route I take, there are bike lanes and there are not - both routes take the same amount of time/distance, the only difference is the presence (or lack thereof) ...
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 ...
7
votes
5answers
2k 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 ...
7
votes
6answers
410 views

Left Turn Across Major Intersection

I'm new at biking, and have seen many examples of left-turn situations, but none that quite match this one. Simply, what is the proper / best way to complete the turn pictured below, or is it smarter ...
7
votes
3answers
1k views

Fixed gear Biking, how to ride properly?

I Have been riding bikes since I've been 6 years old, and I don't mean riding up and down the street - I mean touring with my sisters for 10-20 Km. Later on, I really got into Downhill. Over time I ...
7
votes
4answers
1k views

What are the risks of fenders?

I've seen fender descriptions that mention things like breakaway stays and discussions about the relative safety of metal vs plastic fenders, but I'm not getting what the concerns are. Can anybody ...
7
votes
2answers
554 views

Hydraulic disk brake stops working when hot; back to normal after cooling - is this expected?

I have experienced a strange failure of my brake. I was descending a steep smooth road, using only my front brake (my rear brake was broken; it was an unplanned bail from a route). I tried keeping ...
7
votes
2answers
508 views

How much does an impact reduce helmet's ability to protect?

I read the answers to "When or how often should I replace my bike helmet?", but unfortunately none of the answers there cites any references. Have there been any studies quantifying the claim of ...
7
votes
6answers
375 views

How can I avoid crashes on my urban commute? Tramlines and CBD sections especially

I live in Melbourne, Australia, a city famous for its compact, grid-like CBD (downtown area) and trams. Trams mean tram tracks and hook turns. And compulsory helmets. My daily ride is only 10 km but ...
7
votes
2answers
455 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.
7
votes
5answers
2k 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 ...
7
votes
2answers
317 views

How to get back on the road again?

I am from Mumbai, India. And as some of you might be knowing, it is a pretty crazy traffic on roads here. Many times, it so happens that trucks, cars etc. may force you to get off the road while you ...
6
votes
6answers
475 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? ...
6
votes
4answers
602 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 ...
6
votes
3answers
452 views

Is vehicular cycling legal in France?

I learned to ride in Toronto, where behaviour such as the following is legal: if there is not enough space to share the lane safely with another vehicle, it is legal to ride near the centre of the ...
6
votes
4answers
4k 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. ...
6
votes
4answers
607 views

How to deal with motorist's road rage (after prevention has failed)

A few weeks ago I had my first experience where I really worried for my well-being at the hands of an angry motorist-- so, what can a cyclist do when being threatened and followed by a motorist? ...
6
votes
4answers
1k views

Babies on Bakfietsen: How young is too young?

When is it safe to transport a baby on a bakfiets? How does one know when a child is old enough for this? By "safe" I mean, protecting the child's brain from damage due to road vibration, pothole ...
6
votes
6answers
162 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 ...
6
votes
1answer
457 views

What does this warning symbol on my pannier bag mean?

I bought a pannier bag which attaches to the rear rack with 3 quick-releases. Each quick-release has a sticker on it: What does this symbol mean? My guess would be something like "don't hit this ...
6
votes
5answers
23k views

What do I do wrong to get hip aches after biking?

I ride about 17 miles each session. After the ride, the outside of my hips sore: only the parts near the outermost joints, most likely the tendon (although this is only a guess). My knees are fine, my ...
6
votes
3answers
4k views

Is it safe to ride on a cracked rim?

Doing my monthly inspection & clean of my wheels last night and I was shocked to see a crack around one the spokes as they enter rim. It is a rear wheel (Shimano R600 I think). I had obviously ...
6
votes
3answers
2k views

How to eat properly when cycling in extreme heat?

In the US, we're in the middle of a heat wave. Temperatures are topping 100 degrees F and up in some areas. When touring, how should one's eating and drinking before and during a ride be changed to ...
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
4answers
596 views

If a lane is going to expand should the left lane be taken prior to the expansion?

This is US law and roads. Drive on right side. Speed Limit is 45mph (72kmh) And as @Benedikt Bauer pointed out solid white lines are not supposed to be crossed. In the morning though there is very ...
6
votes
2answers
1k views

How do you ride on a road that doesn't have a bicycle lane?

I live in Washington State and here the law states cyclists have the choice to ride on the sidewalks, bicycle lane, or on the road with other traffic. I usually just ride to school and back, which is ...
6
votes
2answers
1k views

Different tyre width (front and back)

Out of necessity, I had to put an 1.26" (32mm) rear tyre on my bike where the front tyre is only 1.1" (28mm) wide (and the bike came with 1.1" tyres when I bought it). Are there any advantages or ...
6
votes
2answers
212 views

Thunderstorm Safety

I commute 5 miles each way to work. I live in a climate where the weather can change from decent to torrential rain and thundering within 5 minutes (i.e. the first mile of my commute). This ...
6
votes
2answers
489 views

Is a headlight required to emit light to the sides?

The California Vehicle Code says: (d) A bicycle operated during darkness upon a highway, a sidewalk where bicycle operation is not prohibited by the local jurisdiction, or a bikeway, as ...
6
votes
2answers
317 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 ...
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 ...
6
votes
3answers
3k views

Sunglasses anti-fog solutions safe for cycling

I wear full sun protection when I ride, including sunglasses and a tube wrap around the lower half of my face. The issue I have is that in cool weather the wrap tends to channel air from my lungs up ...
6
votes
1answer
430 views

Do cyclists make safer drivers?

Is there any research that suggests cyclists are safer drivers than drivers who don't cycle? Is there evidence to suggest the opposite? Please remember this is not a discussion. Please include ...
6
votes
3answers
2k views

How can I determine whether rust has made my bike unsafe?

I ride a 1972 steel frame bike year round through Canadian winters. When I got the bike it was in good shape, but after putting a few thousand km worth of commuting on it, it has a lot of scratches ...
6
votes
1answer
530 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)
6
votes
1answer
511 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 ...