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Aug
26
comment What should I look for in a new front wheel for my heavy body?
What "broke"?? The width of the rim has very little to do with its strength. Most important is the number, type, and lacing of the spokes. (Looking at the picture of your bike, it appears to have a screwy lacing pattern that makes one wonder if it's more for "cool" than for strength.)
Aug
26
comment Shoe covers (or other tricks) for commuting in shorts
I have, in the (somewhat distant) past, used neoprene shoe covers (with a rise about 6-7" from the base of the foot to the top) over canvas shoes. Mostly this was in cold weather where the intent was to keep the feet warm, so I don't recall a lot of details about how dry things stayed, but my vague recollection is that they worked to at least a degree. Note that the covers need to rise above the tops of your socks to be effective.
Aug
26
comment Clipless Pedals Brand Identification
It seems to me that whether they use a spring or rubber block they should still release the same way. I suspect that most problems with releasing on SPDs are due to not having the shoe cleats aligned properly or simply not having them screwed on tight enough.
Aug
25
comment Lower tire pressure on wider rims?
To answer your basic question, rim width is only weakly associated with the "optimal" tire pressure.
Aug
25
comment Lower tire pressure on wider rims?
Of course, Opie is probably measuring the outside width of the rims, when the "standard" measurement is of the inside width. The difference would be on the order of 5 mm.
Aug
25
comment How do I calculate calories burnt using my bicycle's weight?
The simplest approach is to add the "extra" weight on the bike to your claimed body weight.
Aug
25
comment How to route shifter cables along frame to a Rohloff external gear mech?
Study cable arrangements on similar frames.
Aug
25
comment Pedal-powered head/tail lights
Frankly, dynamo-powered lights are more trouble than they're worth anymore. There are good rechargeable LED lights that are more reliable and less of a hassle to deal with.
Aug
24
comment When riding with a single pannier, does it matter which side it's on?
When there's a rack on the bike, any taillight should be mounted on the rear of the rack, or some other surface that's that far to the rear. Under the seat is not sufficient.
Aug
24
comment What is the middleground between permatube and normal tubes?
@MikeBaranczak - A Kevlar bead also makes the tire very difficult to mount. The half ounce or so weight savings is not worth it.
Aug
24
comment What is the middleground between permatube and normal tubes?
Kevlar bead is not the same as a Kevlar belt. Kevlar bead is for a "folding" tire, which you really only want if you carry a spare tire in your fanny pack.
Aug
24
comment What is the middleground between permatube and normal tubes?
I prefer the Forte Kevlar-belted tires, though the Schwalbe tires ("Gatorskin" brand, I believe) are quite popular. I feel the Forte tires are lighter and more flexible since they use the Kevlar fabric belt instead of a thick plastic one.
Aug
24
answered Minimum tire pressure for 20 mph (32 kph) turn
Aug
24
comment Pedal-powered head/tail lights
"Pedal-powered" (dynamo-powered) lights get kind of technical -- one would need to buy a system based on specific criteria for the bicycle and rider. Probably not the sort of thing to get as a gift unless you're familiar with the technical issues.
Aug
23
comment Presta valve won't let air in on a new tube
Note one important thing with Presta valves: When tightening the "nobbie" after inflating, just get it snug. The intent is to keep vibration from opening the valve -- the air pressure is sufficient to hold it shut, absent severe vibration. If you wrench it down tight you deform the rubber gasket inside the valve.
Aug
23
comment 3D printing frames?
The average 3D printer has a maximum workpiece size of about ten inches in each dimension, and it works with plastic. Some work with metal, but generally not high-strength metal. And carbon can't be 3D printed because the fibers must be properly aligned.
Aug
23
comment What is the middleground between permatube and normal tubes?
Have you tried belted tires? In my experience they reduce punctures by at least a factor of ten.
Aug
23
comment What is the purpose of greasing BB threads?
The #1 reason is so that when you torque the cups you get an accurate reading.
Aug
23
comment Presta valve won't let air in on a new tube
Putting a petroleum solvent like WD-40 on any part containing rubber is a stupid idea. Doubly so given that the valve is so close to the rim braking surfaces.
Aug
22
comment Inner tube size.
Most tubes will list a range of sizes. Eg, 700x23 through 700x28 (and also, for the same tube, 27" x 0.9 through 27" x 1.1). If not, any tube of the same diameter and within about 3mm of the same width is OK.