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1d
comment Is it practical to wear motorcycle half helmet for road cycling?
As to the UV and dirt issues, wear sunglasses.Your neck will thank you.
1d
comment Is it practical to wear motorcycle half helmet for road cycling?
And flat out, a motorcycle helmet is likely to be worse than a bicycle helmet for bicycle safety. The crushable foam inside a motorcycle helmet will be designed to crush under typical motorcycle speeds — 30mph+ — and not for typical cycling speeds. At the end of the day, statistics show that for an average person the health benefits of cycling outweigh the dangers by something like 7-to-1. So relax, go outside, and ride your bike.
Feb
27
comment can only use right hand to brake reliably, due to disability - safer/possible to modify bike?
@Frisbee All I did was ask how you propose to manage the risk, because it really does sound like you're simply saying it's an acceptable risk. I'm not even disagreeing with it being acceptable, as I genuinely don't know the incidence rate of hydraulic brake failures (and assume it to be relatively low). We already accept all kinds of risks in cycling.
Feb
26
comment can only use right hand to brake reliably, due to disability - safer/possible to modify bike?
How does one manage that risk, then? If the hydraulic line leaks, both brakes go out. How do you propose never having hydraulic leaks? Or are you simply stating that the risk of a leak is acceptable, rather than manageable?
Feb
26
comment can only use right hand to brake reliably, due to disability - safer/possible to modify bike?
Many experienced cyclists almost exclusively use the front brake anyway. I only use the rear brake on long descents mostly to have heat distributed to both wheels, or when there's a possibility of the front wheel locking up due to traction issues (lots of water, or gravel). The front brake is the only brake capable of stopping you in a minimum amount of time in an emergency.
Feb
6
comment My bike got stolen a second time (in Amsterdam) - what should I do?
A slightly better approach to locking, is to go only through the rear wheel in that photo, instead of through the rear wheel and frame. This allows one to use a smaller (and thus harder to get leverage against) lock. If you only go through the rear wheel (the part inside the rear triangle), it is as secure, as a thief would have to either pull the wheel through the rear triangle, or pull the object locked to through it.
Dec
5
comment What's this part of the bike, and is it safe to alter it?
The bolt that runs through the unit is attached in tension, not compression. The cap and headset bearings will be under compression, not tension. That said, the amount of torque being applied to the bolt is minuscule — probably not even 1Nm. Thus the tension on the bolt and compression on the cap are extremely minor. Once the headset is properly compressed, it is locked in by tightening the pinch bolts, so the unit won't experience forces during riding. The extra steps you suggest seem unnecessary to me.
Dec
4
comment What's this part of the bike, and is it safe to alter it?
Look at what a star nut is. It's meant to jam up against the inside of the steer tube (I mistakenly said head tube earlier) as a screw attempts to pull the center upward past its "wings". There's nothing to detach. It's literally hammered into the tube in the first place. The important part is tightening the bolt to properly tension your headset when you reinstall the cap, such that you find the sweet spot between the headset binding and there being too much play in the fork.
Dec
4
comment What's this part of the bike, and is it safe to alter it?
Doesn't seem like a bad idea to me. The purpose of the star nut is to "grip" the inside of the tube as it's pulled upward by a screw. Where it does so inside the head tube seems largely immaterial, as long as you have a screw long enough to reach it. Torques on this bolt are minimal. That said, you will want/need a star nut tool to ensure the star nut is kept straight. Winging it like this guy does it seems like a poor choice.
Dec
1
comment Could someone help me identify this bike?
Quoting the OP, "[I am] wondering what to do with it and whether it was a good investment due to the unknown frame". My point stands.
Nov
25
awarded  Popular Question
Nov
12
comment Do you know of tubes that are fully flat-proof?
Since nobody's brought it up yet, if you are constantly getting flats: something is wrong. This is not normal, and many people go many thousands of miles in-between punctures. Use an appropriate tire for the type of riding you do (MTB, cross, commuting, etc), an appropriate sized tire for your weight, and keep them properly inflated.
Aug
21
comment Is my stopping dangerous when Idaho Stop is de facto but not legal?
Hand signals are frequently used by road cyclists when riding in groups, to signal to the other riders with them. Turning or stopping without indication when you're riding with 5–100 other people is a fantastic way to wind up with road rash. For typical commuting, where speeds are slower and other cyclists aren't as closely bunched, it's not as big a deal — and I doubt anyone anywhere is actively ticketing cyclists for failing to use proper hand signals. That said, simple "I'm going over here" pointing hand signals are useful when you're changing lanes or at intersections with other traffic.
Aug
21
comment Is my stopping dangerous when Idaho Stop is de facto but not legal?
Only when riding with other cyclists, or signaling an "unexpected" stop (e.g., not at a stop sign or light). I also don't use the "official" right-hand turn signal (I simply point where I'm going). The hand signals were designed for drivers of cars prior to the existence of brake lights and blinking turn signals — they make no sense for a cyclist. Worse is that nobody but cyclists have any idea what they mean. Everyone understands pointing in a direction.
Aug
20
comment Is my stopping dangerous when Idaho Stop is de facto but not legal?
To OP, yes, you can get a ticket. But the odds of getting a ticket are vanishingly thin. That said, you should ride in whatever manner makes you safest. I tend to go with the Idaho Stop, because I believe it isn't inherently any less safe (especially when other cyclists who may be behind you expect you to behave similarly). That said, I will always let a car go if they have the right of way (not to mention if they don't, if it looks like they'll go anyway).
Aug
20
comment Is my stopping dangerous when Idaho Stop is de facto but not legal?
@Frisbee I live in SF. The Idaho Stop is de facto in full force.
Aug
18
comment Are MIPS helmets actually any safer than standard helmets? Independent Research?
It looks like the point of contention is whether or not the helmet actually reduces the types of injuries associated with oblique impact.
Aug
7
comment How much faster will I be if I lose 10kg (from 100kg, all else equal)
Actually, losing weight has a harmful effect when it comes to air resistance. You have less momentum, so are slowed down more by onrushing air.
Aug
6
awarded  Famous Question
Jul
11
awarded  Good Answer