33,972 reputation
13295
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location Minnesota, USA
age
visits member for 3 years, 11 months
seen 6 hours ago

Old, tired, crazy.


1d
comment Differential foot stress?
Keep in mind that your body is not symmetrical. Not only is it likely that one leg is shorter/twisted more than the other, but also it's likely that one leg is stronger.
2d
comment Did I buy the right mountain bike?
You can never buy the right bike. There's always something that isn't quite what you'd like, and even if it seems perfect when you buy it, a year later you will discover problems.
2d
comment Bike chain worn to 1% according to indicator tool
How many places, percentage wise, does it "drop right through"?
Apr
22
comment Bike Shorts, Do you wear things under/over them?
Yes to butt butter. There are several good brands, so it doesn't have to be Chamois Buttr. (Be sure you have some paper towels handy when you apply it, especially if doing so in a tent.)
Apr
22
comment Why is my electric bike 'clanking' under load?
It's not too uncommon for a slightly loose bottom bracket cartridge to slip back and forth as you crank and make such noises. Generally the cartridge it not loose enough that it feels loose on casual examination. But I would be most suspicious of that torque thingie.
Apr
22
comment Pedal snaps at every rotation
First make sure it's the pedal and not the crank arm. If the crank arm is loose that's an emergency and it needs to be tightened immediately (if not sooner). But if the "snap" is definitely coming from the pedal then the bearings are somehow mucked up. A few pedal designs allow you to rebuild the bearings, but in most cases you must (eventually) replace them. But it's no hurry -- the pedal will likely fail eventually, but probably not for hundreds of miles.
Apr
22
comment Bike Shorts, Do you wear things under/over them?
In my younger days I rode 80-100 miles/day in plain old lined jogging shorts (which used to really be shorts, before "baggies" became popular). However, I now need every advantage I can get, so I wear the spandex shorts (with nothing under them).
Apr
21
comment DIY: what material to use as DIY shim seat post?
@andy256 - Well, one presumes that he'd put a seat on top of it. But there's no need for the "ears" to be that long -- 1/4 inch is plenty.
Apr
20
comment Is it practical to wear motorcycle half helmet for road cycling?
What the others said, plus your posture on a bike is usually different than on a motorcycle -- you tend to lean forward more. The helmet's visor will likely obstruct your vision to an unacceptable degree. (And I can't imagine wearing that on even a halfway warm day, as poorly ventilated as it is.)
Apr
20
comment Does anybody use an under the saddle bag for touring? (Not Pannier Bags)
Just for the record, a proper rear rack and panniers will distribute weight better than either/both your backpack or saddle bag. And the rack/panniers do not cause an increased risk of broken spokes.
Apr
19
comment Right fork mounting point
Yeah, probably for a light. Which would suggest that the bike started life as a tourer.
Apr
18
comment Reason for handlebar diameter
@ChrisH - There is no real "standard" for handlebar diameter. Some sizes are, I suppose, "habitual" (and "blessed" by ISO), but new sizes are introduced at the whim of the manufacturers. The fact that there's not a wider variety of sizes is mostly due to the fact that there's no compelling "story" for new ones.
Apr
18
comment Reason for handlebar diameter
You do have a point, in that the weight of your body on the handlebar causes pain due to poor blood circulation and pressure on the nerves. However, I once calculated that the bar would need to be 3-4 inches in diameter to totally alleviate this issue. The better way to alleviate pain is to change hand positions frequently and/or have ribbed handlebar covers. There is no great need to grip the handlebar tightly -- there is no significant torque at the grip, unlike a racket.
Apr
17
comment Hydraulic disc brakes - total friction as a function of rotor size
@ebrohman - For most materials, in the "medium" range of operation (where brakes would likely be operating), the "coefficient of friction" is a near-constant, meaning that sliding friction is directly proportional to caliper pressure.
Apr
17
comment Hydraulic disc brakes - total friction as a function of rotor size
@ebrohman - You can roughly assume that, above maybe 30% brake force, the force on the lever is proportional to the torque on the wheel.
Apr
17
comment What's causing this puncture?
(There is a slight chance that you could be damaging the tube while installing it, but generally such damage would be on the side of the tube and there would be a visible mark on the tire.)
Apr
17
comment What's causing this puncture?
Remove the tire and tube completely, then check the inside of the tire and the perimeter of the rim for any foreign objects. Next, make sure that the rim strip, covering the spoke ends, is intact, and that no spoke ends are poking through it. And replace the tube.
Apr
17
answered Hydraulic disc brakes - total friction as a function of rotor size
Apr
17
comment Does anybody use an under the saddle bag for touring? (Not Pannier Bags)
That's fine for supported touring (in fact, more than you absolutely need), but likely insufficient for unsupported touring, unless you sleep in a bivy sack.
Apr
17
comment Can I change from short to long derailleur to increase cog size
The difference between a short arm derailer and a long arm one is the "tooth capacity" -- the difference in chain length between the small-small sprocket combo and the big-big one.