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Regarding "could cause damage to my knees/body if I continue to do this without losing weight or increasing power". For a given grade and a given gear (34f 30r) increasing power will not reduce the stress on your knee. To go faster (higher cadence - more power) in gear X and hill Y you need to push harder. The only thing that is going to reduce pedal ...


1

Low cadences are generally putting a lot more strain on the knees, as you're relying on power, given the gear ratios I suspect another issue. I would work on your fitness on flatter terrain and build up to hills. Start within your cardio range and stay in it, do this regularly 3-4 times per week if possible. The problem stems from fitness/strength which ...


2

Understand that the concern is not generally things like a muscle or tendon tear that can occur with, eg, extreme weightlifting -- off-road bikers might be susceptible to that sort of injury, but not a road biker. Rather, the concern is the injury that may be done to joint surfaces and structures due to repeated force, above some "tolerable" level, applied ...


2

Your options to reduce the force on your knees are to reduce bike + rider weight or get lower gearing. If you have a standard road bike cassette, there are climbing cassettes that will reduce the gearing slightly (around 10% or so). Is it dangerous to your knees? Well, that depends on your personal physiology, how much force you are pushing, how much to you ...


6

Mountain bikers regularly run these low cadences for very short periods, often at much higher power output. The issue as to causing damage to knees is more about the duration of the climb and how strong your stabiliser muscles are. (Too much time mushing causes chronic overuse problems, while weak stabiliser muscles can allow injury to happen), however they ...


9

"Women's" helmet is a pure marketing feature. All helmets have to pass the same safety standards and if it fits wear it. Most helmet models come in at least 2 or 3 sizes. You should be able to find a helmet in the size that fits your head diameter. All the major manufacturers make helmets for every head size from 2 year olds to XL for adults. Every helmet ...


1

Many helmets are offered in various sizes. Often the cheaper helmets will only come in one size. This is an example of a helmet offered in 3 sizes Bell Lumen. Many of the helmets also offers an adjustable band. A mountain bike helmet should work fine for commuting.


0

I think a treaded tire would cut through mud on asphalt better than slicks. A total slick with no biting edges on so is less likely to grip on the surface because it is smooth having less friction. Tread gives somewhere for mud to go, kind of like in safety shoes where the water is squeezed out between the grooves. Likewise the mud is pushed between the ...


7

If you are riding on the road, you don't need treads. Even with mud. Even with sand, or gravel. Unless you are riding on the street in the middle of a volcanic mudslide or torrential rain washing out the road, it won't matter. The curved cross section of your tires coupled with your mass will instantly cut right through any patches of water or mud as you ...


3

But there is not one traction If you have surface that does not slip like asphalt or cement then you want maximum contact. A slick. That is why Nascar does it. If you have a surface that does slip like gravel or dirt then you want a tire that grabs. Tread or knobs. Mud is whole different beast. Water has basically no traction. Hydroplane is a ...


8

One of the reviews has something interesting to say These 27" and 26" tires are made to fit older 10 speed/english racer type bikes. You should remember that the 26"x1-3/8" size predates the MTB era by at least three decades, they came first. If you have an old Raleigh three speed or a 1970s Peugeot then these are the tires you need in the ...


7

It sounds as though your problem was a somewhat loose tyre not properly seated. It may have been loose enough that it couldn't be properly seated, but in that case I'd expect it to pop off and the tube explode while you were pumping it up for the first time. You may also be running the tyres at too low a pressure, with a skinny tyre like that I'd expect them ...


1

As Batman has commented, I suspect getting the data down to this level is probably going to be quite hard. That said there is some Australian research which may be of interest to you. In particular a study undertaken in South Australia which looked at the circumstances surrounding crash involvement for a group of 61 bicycle riders involved in a collision ...


1

A head light addresses cross traffic and head on traffic. Too often vehicles are looking for vehicles and don't see a bike that is in plain site. My experience is that yes a strong flashing light in daylight helps being seen. I live in a large city that is not particularly bike friendly and I definitely feel it helps. I took these picture through my ...


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According to Safety effects of permanent running lights for bicycles: A controlled experiment. (Madsen JC1, Andersen T, Lahrmann HS.) they give about a 19% reduction in crash rates. There's a copy of the paper in Scribd as pdf. Every reference I've been able to find appears to refer to this one study. The incidence rate, including all recorded bicycle ...


5

So, I've done a lot of (non-academic) research on bike lights for this site's community blog and more recently for the bike lights resource site I created, The Bike Light Database. There is a disappointing lack of hard scientific data on bike lighting at all, and essentially none regarding this specific question. I can tell you from extensive anecdotal ...


3

Most automobiles in the US now include daytime running lights, since there were studies showing that this did increase other drivers' awareness of them. If you want the scientific studies, knowing that the keywords are "automobile daytime running lights" is likely to help you find them. It isn't entirely clear whether that effect fades when daytime running ...


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It seems clear to me that beneath the question of whether one should bike in the same direction that traffic is going, or facing oncoming cars, lies another more important issue: Are bicycles of a similar class or group as other vehicles, or are they different? If bikes are considered to be a similar class of vehicles as cars, then they should all follow the ...



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