Hot answers tagged

62

The problem is ambiguity. Sometimes you'll be unfairly judged by cyclists you're trying to pass. It will happen. Sometimes it helps to reduce the sting of the judgement with some perspective on what's going on. When you’re on a bicycle, cars are death monsters. You spend your time trying to keep distance from them. You wish they would all just disappear. ...


60

As long as you give a cyclist plenty of space, and obey traffic laws and drive safely in general you are OK. 1 meter or 3 feet is generally considered enough space when passing, but I know I prefer more. If you can move into another travel lane to overtake please do that. Don't follow a cyclist too closely before overtaking, it's really scary for the ...


26

16 km/h is so slow that even the worst tyres should keep you up, unless something like oil spills were involved. If something is so slippy that you fall without warning at such low speeds there is not much one could do. If you have a hunch this might happen tripodding corners or getting off the bike may help. The first drizzle after a long dry spell can ...


20

Determining an acceptable risk level is really a subjective personal assessment, no one can tell you whether or not something is of an acceptable level of risk. As such I will give you my judgement criteria for riding on roads shared with automobiles. I avoid roads without a large shoulder or bike lane. While many still advocate for taking a lane, the ...


19

@Rider_X has already given a good answer. I would add an important consideration: local driver and cyclist cultures. As you and the map you cite indicate, there is little pro-cycling culture in this area. If you don't see other cyclists riding there, then don't do it yourself. The road you picture is quite poorly designed, even for motor traffic. That ...


16

My personal list in order of importance: Overtake when it’s safe to do so. This means no oncoming traffic (unless the lanes are wide enough to overtake even despite traffic) and that you can see far enough ahead. Don’t overtake on crossroads or crosswalks. Don’t drive too close behind. Bicycles usually don’t have braking lights, so you’ll need some time/...


16

In places where it rains very little or hasn't rained in a while and then a light rain falls, the water is not enough to "wash" the road surface; instead it only wets fine dust and oils that are on the surface. These oils come from cars' engines and exhausts, but are not noticeable at first sight. This mix turns into a fine, paste-like substance that is very ...


14

To fall to the inside of the turn means that the bottom of the wheel has slid to the outside. When that happens, it is really quick. I would look back at the corner and see if there's a metal plate in the roadway, which are terribly greasy when wet. Other possibilities include round grit/gravel/dust/sant that acts as a ball bearing, and oils on the ...


13

Your rims can almost certainly take the extra width. The real question is can your frame, forks, and brakes? Only you can measure that. Based on nominal dimensions (and some approximations) you would need an extra: 2.5mm either side to the chainstays/seatstays and forks/brake arches. 5mm above (to clear the brakes) and in front of the back tyre. A few ...


12

You handled the situation perfectly. Congrats, you belong to the good, vanishingly small minority who does. You see, from my experience I would estimate the fraction of car drivers who obey the rules when overtaking bikes at about a single percent. At most. The vast majority of motorists seem to think that they have the right to overtake a bike even when ...


11

If you're going to change anything before the big event, change it now and allow time for any problems to arise, then be sorted out before the event. Generally, a 28mm tyre is said to give lower rolling resistance over a 25mm and has been tested, though using a 28mm at the same pressure as the 25mm could spoil some of the comfort advantages. The numbers ...


10

You basically get what you pay for, so there isn't any secret formula. Trek is one of the largest manufacturers on the planet, and is probably as good as any other on the market. But have a look at, and test if possible, other bikes as well as Trek, because different models have different geometries, and another geometry might feel better to you. Size also ...


10

If you want to improve balance and control out of the saddle at any speed, even freewheeling, you just have to practice doing it. Note that balance while pedaling out of the saddle on a trainer vs. on the road will be very different as the bike is held firmly upright in the trainer With respect to power output: pedaling out of the saddle is usually done ...


10

In addition to the previous answers, your tire pressure was likely too high for the conditions. If you know you're going to be riding in the rain, it's usually a good idea to lower your tire pressure from what you would normally have them at in dry conditions. A lower tire pressure allows the tire contact patch to deform more, thereby increasing the amount ...


9

Are you still looking for stage maps? I have the Tour DuPont program books from 1993, 1995 & 1996. They include a map and a profile of each stage. Also have Lance Armstrong's signature in the 1995 book. edit - Here's a first snap of the overall maps for the three years. Apologies for the quality - I've just snapped them with a phone in the meantime,...


9

This is not a proper answer. Its more a collection of notes gleaned from different sources. Feel free to add more if you find other things. 1989 The first Tour de Trump, a 10-day, 837-mile bicycle race through five Eastern states http://www.nytimes.com/1989/05/15/sports/dispute-mars-end-of-the-tour-de-trump.html Other site says 825 miles total, or 782 ...


9

Its to control the size of the field. The number of categories grows as the number of riders increases. This is so that you split people by ability more (for better consistency) and keep the fields sufficiently small. There just happen to be more men than women. If the number of women increase to be unwieldly with 4 categories, they'll presumably add a cat ...


9

What metrics can I use to make a judgement call about whether a vehicle's actions are actually making me unsafe The UK Highway code says they should give you as much space as they give a car, illustrations in the code suggest they should move completely into the next lane. At least one UK police force uses 1.5 metres as the minimum separation. My old copy ...


9

An RD-5701 rear derailleur should work just fine as a replacement for an RD-6600. I've used an RD-5701 with an 11/28 cassette for the last 6-7 months with no issues, including swapping my crankset from a 50/34 compact to a 53/39 a few weeks ago.


8

Shimano 10 speed mountain rear derailleurs or 11 speed road derailleurs work with Shimano 11 speed road shifters. Shimano 7,8,9,10 speed road and 7,8,9 speed mountain derailleurs work with Shimano 7,8,9,10 speed road shifters in terms of cable pull.


8

For efficiency I would put the road tire on the back, as the rear carries more weight. However, front would be best if cornering traction was important. If the MTB tires have an aggressive MTB tread pattern the mismatch would be best addressed by matching tires and getting another road tire.


8

It turns out there's actually some rather interesting science behind friction in the presence of water and salt. Various model systems demonstrate that salt solutions really are better lubricants than plain (distilled) water between rubber and other materials, and by enough to matter. Unfortunately little if any work has been done on the friction between ...


7

Well, 26 will feel a whole lot better than your current 23. You can get away with lower air pressure because of the larger volume supporting your weight. Lower pressure means smoother ride. Of course two tires of the same size can feel very different because of the quality of the casing and rubber. For commuting, I would say get as big as you can fit, which ...


7

From my experience, the single most important point is properly choosing your route. Google maps and the satellite view are your friends. For example, there is a 2x2 lanes road nearby. I see cyclists there quite often when I drive. It is an extremely dangerous road, 90 km/h, big lorries, no shoulder. There is a smaller, parallel road though. It is very nice ...


7

Fact: True pro-level road racing bikes from all eras, including but not limited to the current iteratons, prioritize being light as possible while durable enough, and the right kind of durable, for a pro racer. Fact: A heavy non-racer riding for fitness and pleasure doesn't really get any utilitarian benefit from the extra bit of weight reduction that ...


7

TR160-35 is the model number. They are 160mm Centerlock rotors. If your new wheels have Centerlock hubs, then you need either centerlock rotors or adaptors. If the wheels are 6-bolt, then you need 6-bolt rotors. Either way you'll want 160mm rotors and to keep it easy, I'd stick with Tektro rotors for this system.


7

I'm surprised to see that no one else mentioned it, and this isn't a terribly detailed answer, but that road has what motorcyclists refer to as the dreaded "tar snakes". The tar they use to patch cracks ends up very smooth, and depending on weather conditions can get polished even more by traffic. Especially in wet conditions, that thin line of tar can be ...


6

Your technology is up to date. 53x12 is basically still the standard for road bikes today. If you want to increase the gearing, your best bet would be to install an 11x cassette, if not a Sram 10x. That said... If you are regularly finding your 53x12 too low it means one of three things: You are mashing (standing up in a heavy gear) instead of spinning (...


6

One of the considerations (assuming you are able to get a good seal) is that air loss under a tire burping may be worse than a tubeless specific rim. In CX this is definitely a consideration, especially if you are pushing the lower limits of tire pressure (e.g., < 30 psi on 700x33c is amazing on slick off camber turns, but it is easy to fold the tire in ...


6

There is significant debate over the statistical benefit of wearing a helmet or not. My guess is most of use wear a helmet just in case the "Helmets are safer' camp is right but wonder if they really are. I cannot imagine the difference between helmets from a safety perspective being statistically significant. "Road. XC etc are just marketing terms - the ...


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