30,746 reputation
12978
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location Minnesota, USA
age
visits member for 2 years, 10 months
seen 10 hours ago

Old, tired, crazy.


Aug
1
comment My Road bike pedals locked up tonight. Why?
Yeah, the two most important items in your tool kit are a cell phone and money.
Aug
1
comment Need help choosing compatible rear derailleur, cassette & chain
Before you invest in this bike, you might want to look around for another used bike that has all its parts.
Aug
1
comment My Road bike pedals locked up tonight. Why?
@jillesdewit -- "Tacoed" means no longer flat but curled like a taco.
Jul
31
comment Radon bikes - has anyone heard of them?
For your conventional diamond frame (if there is such a thing anymore), the fundamental measure of "fit" is "stand-over height" -- you should be able to stand over the bike with your feet flat on the ground and the top bar "comfortably" below your crotch. And once you've found a "conventional diamond frame" that fits, the seat tube length can be measured and used to "size up" other frame styles. This, of course, doesn't give you a perfect fit for "reach" and other metrics, but it does put you in the right ballpark.
Jul
31
comment Teaching an adult to ride
(And if you can find the old Fraiser episode where he tries to learn how to ride a bike, that's a good mood-setter.)
Jul
31
comment Teaching an adult to ride
Yeah, it might be good to find a bike that's undersized, to make it easier for the feet to reach the ground. Also, the pedals can be removed initially, to make it easier to push along with the feet.
Jul
31
comment Genesis Onyx 29" New tires? New wheels?
Since 29" and 700c are the same thing, you have a vast selection of tires in that size.
Jul
31
comment Genesis Onyx 29" New tires? New wheels?
2.125 to 1.75 is probably doable, but it all really depends on your rims and how "fat" they are. Changing to 26" is impractical. 29" is a marketing term for 700c, to make it sound more 'Merican.
Jul
31
comment Do higher speed crashes result in less serious injuries.
I suspect that if this effect exists in TdF riding, it's due more to the circumstances than the speed per se. Higher speeds would be flat or downhill, lower speeds uphill. And likely there's a difference in the likelihood of bikes bumping in the different circumstances.
Jul
30
comment How do I descend faster on the straightaway?
Ya know, it's just that darned V-cubed thing.
Jul
30
comment How exactly are pedals attached to crank arms?
No doubt there's an exception on some bike somewhere, but on 99.99% of bikes in the world the left-hand pedal is threaded in with left-hand threads and the right-hand pedal is threaded in with right-hand threads.
Jul
30
comment How do I descend faster on the straightaway?
I too am skeptical that hubs make much of a difference on a high-speed descent. Even the resistance of tire on pavement swamps hub resistance, and wind resistance swamps both by a large margin. The wind resistance of the hub is more likely a factor than its rolling resistance.
Jul
29
comment Which is better, single speed or three speed?
Unless it's totally flat where you live, I'd advise getting a multi-gear bike. Trikes are now available with fairly wide gear ranges, if you're willing to pay -- how many gears depends on what range of hills you want to handle and how hard you want to work. (But why not borrow a regular adult bike and try to learn to ride it first, before going for the trike?)
Jul
29
comment Will a 650x23 tire fit on my 26" rim?
Bike tire sizing is a mess. Basically, the best you can do is read the Sheldon Brown article and take your best bet. Note that, among other things, tires dimensioned in fractions are different from tires dimensioned in the "identical" decimal sizes. Ie, a 1-1/4" tire is different from a 1.25" tire.
Jul
29
comment Unsure of Proper Tire Pressure
I would say you should be running about 80-90 PSI. A good quality 700x32 should be able to handle that with no problem. I don't know why road tires often have such low sidewall pressures listed -- either they're poor quality or they're pretending to be off-road tires.
Jul
29
comment Unsure of Proper Tire Pressure
I run my 700x35s at 100 psi.
Jul
28
comment What kind of pump do I need for this valve?
And, yes, to prepare the valve for filling you need to unscrew the knurled piece all the way until it stops (don't force) and then give the tip of the valve a little press to free the rubber gasket. When done, retighten the knurled piece, but only just finger tight -- over-tightening will just cause the rubber gasket inside to fail sooner.
Jul
28
comment What kind of pump do I need for this valve?
On some pumps you unscrew the ring on the chuck, reverse the "innards", and re-install the ring.
Jul
28
comment Are 22mm tires too thin for commuting?
IMO, 22mm is narrower than ideal for commuting -- 27 or so would be a better width. But it depends on your riding style and the course you follow. Also, for commuting you don't want super-thin racing tires, if for no other reason than they will wear through too fast. You do need to run a pressure commensurate with tire width, and again, the narrower tires self-deflate more rapidly than wider ones (though a lot depends on the brand of tube). It's not that 22mm is wrong, it's just not ideal for commuting.
Jul
27
comment What are the benefits of 700c23 tires?
@amcnabb -- Well, I think mine (Performance) are technically rated at 90. My old Schwalbes, though, were rated at 105, IIRC.