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

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4
votes
2answers
2k 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 ...
8
votes
6answers
534 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 ...
2
votes
1answer
628 views

How does one test the freewheel?

What are the failure modes (symptoms) of a failing or failed freewheel? My understanding of normal free wheeling means the rear tire should rotate when the bike is moving and the pedals are or are ...
5
votes
2answers
181 views

Is this rim safe?

The rim has a parting at the join: This is a brand new wheel, and I was wondering if this is a safe one. Could it split at the join?
4
votes
4answers
291 views

Employer Duty of Care for cyclist

The company I work for provides cycle racks for cyclists in a semi underground carpark that is open at one side. Several cycles have been stolen from this area and one colleage was attacked by a bike ...
1
vote
3answers
359 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 ...
7
votes
6answers
346 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 ...
10
votes
6answers
3k views

Do stickers or paint compromise a helmet?

Would sticking stickers on a helmet or painting them etc make a helmet less useful in a crash? Not knowing the science of helmets but perhaps stickers in the wrong place might make it not behave how ...
29
votes
8answers
750 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 ...
10
votes
8answers
2k 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 ...
13
votes
4answers
386 views

Determining if a road is safe to bike on

How do you determine which roads are safe to ride on and which should be avoided? What traffic patterns do you feel comfortable riding in, and which ones set off alarms? What sorts of intersections do ...
5
votes
1answer
728 views

Any experience about radially-laced hub flanges actually breaking?

Most hub manufacturers forbid lacing spokes radially, mostly because there is less material in the radial direction away from a flange hole than in the standard 3-cross, tangential lacing. (UPDATE: ...
10
votes
5answers
638 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 ...
19
votes
7answers
1k views

What are some alternatives to fruitlessly ringing my bell at a motorist?

I doubt that motor-vehicle drivers can hear the "ding" sound that a bicycle bell makes. What are some better alternatives?
10
votes
4answers
939 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?
1
vote
3answers
749 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 ...
4
votes
2answers
337 views

Which brake is most expendable?

I'm thinking of removing a brake(front or back) to reduce weight and simplify my bike. Which brake is most expendable? Its your average fixie road bike.
6
votes
3answers
413 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 ...
13
votes
6answers
3k 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 ...
3
votes
4answers
492 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?
7
votes
7answers
490 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, ...
2
votes
3answers
144 views

“wound” on the tire side

The other day I was stopped at a traffic light when I felt my bike moving slowly forward. Did not pay really attention, thought there was a slight slope, so hit the brake and voila. But it did not ...
8
votes
6answers
1k views

Is standing up and peddling 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 well for starters one should probably not be standing up to pedal under normal ...
7
votes
5answers
1k 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
4answers
2k views

What is the recommended type of tire for riding on wet pavement?

I am commuting in rainy Seattle, and the rain has started. Right now I have Continental Gatorskin tires on my commuter, but yesterday I noticed I was braking to stop the wheels and skidding quite a ...
6
votes
3answers
229 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, ...
4
votes
2answers
813 views

Can a steel fork be unbent?

I was hit by a car and now the steerer of my Reynolds 753 aero fork is bent. Is it possible to bend them back? Would that be safe? I can't afford a new pair!
20
votes
5answers
2k 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 ...
4
votes
7answers
406 views

Need a bright headlight for offroad, UK

As winter approaches I am looking to upgrade my cycle lights. My commute takes me on an unlit section of canal tow path so I am looking for suggestions of a super bright headlight or cycle light that ...
8
votes
7answers
692 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?
11
votes
3answers
1k 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?
0
votes
4answers
1k 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 ...
-4
votes
5answers
2k views

Is it safe to Cycle with an Umbrella?

Is it safe to cycle while holding an Umbrella? Obviously it's at least a little less safe than biking without holding something in your left (or right) hand. But how much more dangerous is it? ...
11
votes
4answers
2k views

Is it legal to pass a car on the right when that car is turning?

So I've been poring over the bikes SE, and as a recreational biker and an automobile commuter, I'm naturally most interested in topics addressing how bikes interact with automotive traffic. In one ...
20
votes
8answers
2k 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 ...
19
votes
5answers
2k views

How should a bicycle helmet fit?

I see enough folks wearing helmets in such a manner that they might as well not be. What is the proper way to fit & wear a bicycle helmet?
6
votes
1answer
335 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)
1
vote
9answers
450 views

Is it possible to perform tricks with 100% safety during commuting?

When commuting in the city, i encounter many transitions between road and sidewalk. It's easy to jump from the sidewalk down to the road (~20 cm vertical) if you have enough speed, but to get back ...
14
votes
6answers
534 views

If I'm riding on the road, and there is a red light but a walk signal in my direction, should I go?

I frequently come to stop lights in which there is an all-way stop and a pedestrian signal. I always stop at such lights, but I'm wondering if I should then bike slowly across after determining that ...
6
votes
4answers
12k 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
4answers
2k 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. ...
3
votes
3answers
829 views

Armor and helmet for ultra-safe commuting (womens size)?

I'm about to start daily bike commuting again after a long hiatus and want to go all out on safety. My fear of an accident is extreme enough that I am looking into regularly wearing body armor and a ...
2
votes
2answers
239 views

Wheel spokes missing

I have 5 spokes missing. Is it OK to ride on it, and how long will it last, or will my wheel just break on me? I will be going to work on it every day.
15
votes
6answers
554 views

In shared bicycle/pedestrian facilities next to a road, do I obey the pedestrian or the vehicle traffic control devices?

My commute takes me on a bike path that runs parallel to a road (with a sidewalk in between). When crossing other roads, the sidewalk and bike path merge, and there is one curb-cut and cross walk with ...
9
votes
2answers
2k 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).
0
votes
3answers
564 views

Should I listen to music when I bike? [duplicate]

Possible Duplicate: Is listening to music dangerous while cycling? Is it bad to listen to earphones while commuting? I have a lot of people tell me I shouldn't, but I find when I'm biking ...
6
votes
4answers
877 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 ...
8
votes
3answers
2k 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 ...
5
votes
5answers
2k 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?"
7
votes
5answers
827 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) ...