Questions tagged [safety]

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

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6 votes
2 answers
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Safe to Ride Tires Packaged for Two Years?

Below is a picture of two Continental 5000's that were kept in their boxes for about two years: They were kept out of direct sunlight inside a house that was not climate controlled. The tires feel ...
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12 votes
6 answers
4k views

Why do fixies (fixed-gear bicycles) have one brake on the front?

I've recently started riding a fixed-gear bicycle and I love it. It's simple, light and fast. However, being new to "fixies" I have two brakes with a drop-down bar, like a road-bike. It just ...
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  • 1,309
8 votes
1 answer
178 views

Do bicycle stems have certified usage ratings (road/XC/Enduro/DH)?

Clamping dimensions aside, are all stems rated for all the cycling disciplines, especially in the MTB domain? In other words, are stem manufacturers liable to guarantee their products to be safe to ...
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0 votes
0 answers
164 views

Should every cyclist feel a resonance frequency at a given speed?

On a stand When I hoist the bike on a stand and spin the rear wheel with all I've got on the highest gear, then sit back and watch it slow down gradually, there is a point where the bike + stand start ...
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  • 5,381
10 votes
7 answers
2k views

Choosing parallel side or main road when route mapping

When mapping routes, I often come across sections where there are roads that run parallel to each other with a block or two separating them. Often if one is a main road the other is a secondary road ...
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  • 101
16 votes
8 answers
3k views

What is the purpose of a tread pattern on city/road tyres?

What is the purpose of tread patterns on city/road tyres? I think I've understood (perhaps wrongly) from this site that they're unnecessary on paved roads: Grip (friction) is more-or-less contant, or ...
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  • 11.7k
5 votes
4 answers
2k views

Helmet cover starts peeling off: ok or not?

Today I noticed that in the back of my helmet the plastic cover of the EPS is starting to detach/peel off from the underlying layer (see photo) I know that attempting to glue it back is a no no as it ...
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  • 6,569
32 votes
5 answers
4k views

Can Cycle Camera Evidence be Used by Police to Enforce Dangerous Motorists?

The (UK) Highway Code dictating that motorists should pass a cyclist no closer than 1.5 meters is only useful to protect us if it can be enforced. Indeed, it's hardly the odd occurrence that I'm close-...
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  • 2,093
19 votes
11 answers
4k views

Should cyclists on a bike path separated from the road overtake each other on the right or on the left?

I am going to assume right side traffic for this question. Switch all the left and right if you are in the UK. If you are cycling on a road with or without a designated bicycle lane you should stick ...
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  • 324
7 votes
1 answer
2k views

Bike helmet expiration

I have a bike helmet, Specialized Align. By the manufacturer's sticker, it was produced in 2013. Most of the time, it has been stored in the garage, only saw a very light use (several hours in a month ...
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  • 173
3 votes
1 answer
68 views

Steering torque

What defines the steering torque? What is an average value for e.g. city bikes and downhill MTB? Is the static torque largest for returning the steering to zero position, depending on (radial) load ...
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  • 271
21 votes
6 answers
4k views

Trail shared by bicyclists and hikers

In my community, there is a new trail for bikers and hikers to share. There are one way arrows for the bikers so they go in one direction. Should the hikers go the same way? I had a bicyclist yell at ...
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21 votes
3 answers
5k views

Why should little kids not have back mirrors on their bicycles?

In a paper from the mid-1980s, there is a kind of PSA box listing some things that small children should NOT have on their bicycle. Most of them make sense, but there's one that confuses me: "...
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  • 211
19 votes
2 answers
2k views

Penny-farthings: Skills required to transition from standard bicycles?

Beyond the obvious difference of the saddle being 5 feet high, how is riding a penny-farthing different to riding a standard road bike? What unique skills are required to ride a penny-farthing?
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  • 2,093
6 votes
1 answer
207 views

Safety vest: is an all-reflective one fine?

I stumbled across a question on whether yellow or orange safety vests were better for visibility, and it got me wondering - I have a vest that consists only of the silvery reflective fabric (and it ...
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