30,795 reputation
12978
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location Minnesota, USA
age
visits member for 2 years, 11 months
seen 15 hours ago

Old, tired, crazy.


Apr
6
comment Is it possible to ride 18km everyday for a beginner?
@Mohebifar - If the route is really that steep you need a bike with low enough gears, but other than that (and not wanting anything too heavy or poorly fit) the bike won't make much difference. On longer rides you'd be more concerned about the quality of the seat, style of handlebars, etc, but these aren't so important for a ride that will only be on the order of a half-hour long.
Apr
6
answered Is it possible to ride 18km everyday for a beginner?
Apr
6
comment Extra screw after removing front wheel (plus enclosed hub brakes)
That appears to be a bolt for fastening a fender stay to the fender.
Apr
6
comment Has a bike been made with a rear derailleur above the chainstays?
You could potentially rig the bike with a idler wheel high on the seat stay, and feed the chain down to the cluster, then up to the derailer. But the idler would need to be rigged so it would move in and out with the derailer, so that chain angle was acceptable. Probably better to just design a more compact and less damage-prone derailer somehow.
Apr
5
comment What is the best way to stop and restart at a stoplight?
Yeah, stopping in the right gear is key.
Apr
5
comment What is the best way to stop and restart at a stoplight?
Time it if you possibly can. And at some intersections I stop a couple of car lengths back from the line and put my foot on the curb.
Apr
4
comment Are these compatible bottom brackets?
In most cases a "cartridge" is used for the bottom bracket bearing, and that "cartridge" includes the actual crank shaft, and they normally cannot be separated (without a hacksaw). The cartridge may or may not have a threaded retaining cup fixed to one end (vs having two removable cups). Crank shafts come with 4-5 different end styles, the old round cottered style, the standard square style, and 2-3 (maybe 4) different splined styles. The cartridges differ in length and "offset" (asymmetry), based on the number of chainrings, et al. And we haven't even discussed external bearing BBs.
Apr
3
comment headwind when riding in a loop
In my experience a quartering wind is worse than head-on, not so much because of any possible added drag but because you must put more effort into keeping the bike headed straight. Especially bad if gusty.
Apr
3
comment Should I not use a trail because of poor conditions?
(PS: I've seen this when camping with Scouts. About a dozen Scouts making a trail through the woods when it's wet, then the next day, after an overnight rain, there's a gully.)
Apr
3
comment Should I not use a trail because of poor conditions?
It depends a lot on the soil type, etc, as well as the terrain. Eg, repeated foot traffic on a slope covered with forest litter can easily strip the covering from the soil and create a rut. A single person might not be a problem, but a dozen or so can be pretty destructive.
Apr
3
comment Should I not use a trail because of poor conditions?
@CareyGregory - Yeah, it's relative. If you can walk without tearing up the soil then it's probably OK.
Apr
2
comment tricycle engine compatibility?
Keep in mind that most of the battery units are "assist" units, and will (intentionally) not provide the power to move the bike without pedaling. They aid mainly in acceleration and hill-climbing, not so much for sustained riding.
Apr
2
comment headwind when riding in a loop
It doesn't equal out because wind resistance vs speed is not linear.
Apr
2
comment headwind when riding in a loop
Obviously you haven't ridden a bike much. The only time you ever get a tailwind is when you're climbing a steep hill. (Seriously, it does not "equal out", since wind resistance increases with the "square" of apparent windspeed.)
Apr
2
comment What do I need to know about fitting new wheels on a bike?
Don't feel bad about being "clueless". Rear derailleur hubs used to be pretty simple with basically only one option. Then there were 2, 3, 4, 5... and things started multiplying.
Apr
2
comment Should I not use a trail because of poor conditions?
This goes for foot traffic as well.
Apr
2
comment tricycle engine compatibility?
I'm pretty sure I've seen pictures of purpose-built motors for trikes. Or one could always install a battery-assist front hub.
Apr
2
revised tricycle engine compatibility?
added 39 characters in body
Apr
2
comment Why does the chain tension vary as pedals are turned?
Ah, I missed that it was single speed. In that case likely the front cog is off-axis for some reason.
Apr
1
comment Why does the chain tension vary as pedals are turned?
But clicking from the bottom bracket needs to be investigated -- you should take the bike to a bike shop if you don't know much about bike maintenance.