Bicycles Stack Exchange
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1500 questions
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votes
7 answers

Relative weight of disc brakes

People say (for example here) that disc brakes are relatively heavy, giving this as a reason for not using them. How much heavier than rim brakes are disc brakes? Is the extra heaviness in the brakes, or in the stronger rims, tires, and/or forks?
ChrisW
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8 answers

Something clicks while pedaling

My road bike with square taper Chorus crankset has developed a click when pedaling. The click happens always in the same pedal position, right crank forward, on both chainrings. Since the noise started, I have reinstalled the cranks, tightened…
ojs
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2 answers

Why do spokes loosen?

Is it true that the they twist small amounts as you hit bumps while you ride, and that's why they loosen? Would gluing spoke nipples simply solve this problem?
Ryder Bergerud
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5 answers

Recommendation for panniers to carry a laptop for daily commute That's available in the UK

I've seen this question about Panniers, but as far as I can tell, the Arkel Panniers aren't available in the UK. Does anyone have any recommendations for a good laptop holding pannier that converts into a backpack or a messenger bag style (I only…
Omar Kooheji
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3 answers

Is it worth buying a second hand classic road bike for commuting?

I am looking for a substitute for my commuting bike. It is a cheap second hand general store bike. It do the job but just don't worth keep maintaining. But at same time I have to keep my bike outside for 10 hours a day in place where several bikes…
kifli
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7 answers

Heavy Rider (300lb+) - Please recommend a 26" tyre to avoid tyre pinch

I ride a hybrid on 26" rims currently fitted with hybrid tires. As I am 300lbs+ the rear tire runs permanently deformed/flat and the rims ride over the rubber causing tire pinch. Can anyone recommend the tyre tube combination that I should try to…
Matt TC
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2 answers

What do you do when a bus stops in front of you?

When a double decker bus stops in front of you, what do you do? Is it safe to attempt to overtake the bus?
Ambo100
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Do rollers ruin tires?

I started using aluminum rollers to ride indoors this winter and noticed streaks left on the tires. I've also seen tires specifically advertised for use with rollers. I'm wondering whether using the rollers will tear up or degrade a high quality…
ebrohman
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3 answers

can only use right hand to brake reliably, due to disability - safer/possible to modify bike?

I'm new here and hoping someone might have thoughts on this - had a look and couldn't find an answer elsewhere! Apologies for the kind of long question, and if it's silly, but any thoughts would be appreciated :) My situation is this: I ride a…
Yhana
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6 answers

Are folding handlebars a good idea from an engineering standpoint?

A couple of Chinese stores have been selling folding handlebars: At first glance this appears to be a great idea since the handlebar width is one of the reasons that carrying and storing bikes can be a problem. From an engineering standpoint, are…
RoboKaren
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14 answers

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 brakes...what is that speed? Edit: In summary, how can…
ditojim
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3 answers

What benefits do bike clubs provide?

Some bike clubs charge annual dues or fees to join. What do I have to consider when determining whether to join a club? Any clear tell-tale signs to avoid? A more subjective question is: what is the point of joining a club, especially if you are…
leaflifelayf
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5 answers

Legs are very weak

So, I've been riding at different levels of difficulty for years now, from a 33lb, one gear bmx to a 21 speed, 44lb mountain bike, and now to a 22lb, 21 speed road bike. Each bike had its own challenges, and I've always tried to ride my hardest.…
Hellreaver
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5 answers

Did I choose the wrong size bike?

I don't know much about bicycles, and I have relatively little experience with them. I bike for fun, or to get around the city, not for sport. Recently I bought a BTWIN Rockrider 340 mountain bike, in size M. My height is 168 cm. After going out…
Samu
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6 answers

What was the rationale for reverse brake levers?

The Porteur style of bicycle popular by newspaper delivery men in France in the 1940s-1960s had reverse brake levers, seen here in this diagram from an article from Bicycle Quarterly (the photo jpeg is titled rebourherseville1960.jpg): A bunch of…
RoboKaren
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