32,796 reputation
13292
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location Minnesota, USA
age
visits member for 3 years, 4 months
seen 2 hours ago

Old, tired, crazy.


Oct
15
comment How do I replace road brakes?
In other words, remove the old and install the new. Assuming that both units use the same size brake post, there's nothing in the swap that isn't normal maintenance operations, other than the actual physical swap.
Oct
15
comment Credibility of my Bike fit
(But of course the above should not be interpreted as medical advice. ;) )
Oct
15
comment Credibility of my Bike fit
MADD symptoms are based on the total energy expenditure in the muscle over a period of a few hours -- brief intense periods (sprints) are not as problematic. The only symptomatic relief comes from D-ribose, which is available as a "supplement" and which is also present (at relatively low levels) in "organ meats" and in lentils. The symptoms are exacerbated by statin drugs. If you have the condition the symptoms generally vanish (except perhaps for local areas of damaged muscle) within two hours of taking a several gram dose of D-ribose.
Oct
15
comment Non Removable Presta Extension
Just by long-stem tubes. Heck, it's harder to find the short stems that work best in my regular rims than to find the long ones.
Oct
15
comment Do good tires lessen the chances of your innertube bursting?
Over-inflation must be quite extreme to cause "inner tube bursting", and when it occurs the tire will fail in a quite obvious fashion -- either split open or pop off the rim.
Oct
15
comment Credibility of my Bike fit
After a ride of that distance you're going to feel it. And the symptoms you describe are somewhat suggestive of a genetic metabolic disorder (myoadenylate deaminase deficiency). If that's your problem there is a safe, inexpensive "dietary supplement" you can take that helps a lot.
Oct
15
comment Do Miche bottom brackets require a special tool, or is this one damaged?
I will say that you see this sort of thing on the splines of a rear cassette, eg. But that's to assure that all the sprockets fit on with the same orientation, and there's no point (that I can see) in assuring a single orientation when using a wrench on a BB cup.
Oct
15
comment Mechanic says not to use top three/bottom two gears or the chain will throw
@EsotericScreenName - I'm fairly confident you misunderstood the mechanic. It's about "chain angle", and you only get a bad chain angle with big/big or small/small.
Oct
14
comment Mechanic says not to use top three/bottom two gears or the chain will throw
I think this is a point that lots of folks are missing. Back when you were lucky to have 10 speeds, you kinda wanted every one of them, but with 27-30 (and sometimes even 40) few people make any real use of every gear combo. Mostly one will pick a "range" with the front and then adjust within that using the rear, but the "extremely mediocre" gear combos (big/big or small/small) will not be used to any real extent because they're in the middle of the range and duplicated (often twice) by other "more convenient" or "more natural" combos.
Oct
14
answered Lighting for xtracycle hooptie
Oct
14
comment Are front forks supposed to pull to centre?
About all I can figure is that the mechanic over-tightened the headset bearings, but one would think that you'd feel that as resistance to turning rather than "snapping back". (Though I suppose if the balls have made indentations in the races this effect would be seen when over-tightened.)
Oct
14
comment Chain too wide for gap between chainring and chainring guard
On a derailleur-style bike the chain width should match the sprockets, or you will have poor shifting. On a fixie or internal gear bike, though, correct chain width is not so critical.
Oct
13
comment Help! Tire Pressure
Check the sidewall for a max pressure, but I would guess that those tires can go to 100 PSI or so. Underinflation is more likely to lead to failure than overinflation. (I have never seen a bike tire (that wasn't already damaged) fail due to overinflation. But I've seen a number of "pinch flats" due to underinflation.)
Oct
13
comment Mechanic says not to use top three/bottom two gears or the chain will throw
BTW, that chain does not appear to be very well lubricated.
Oct
13
comment How to dress for biking 3 miles to work in 40 and below so not to sweat to much but still keep warm
Used to be you could get a "helmet liner" that was a lightweight fleece or polypro cap that fits inside the helmet and attaches to the straps. Good to have below 15F or so. Haven't seen then of late, though.
Oct
13
comment How to dress for biking 3 miles to work in 40 and below so not to sweat to much but still keep warm
As others have said, gloves are important when you get below about 40F. Start out with plain riding gloves, then polypropylene "glove liners" under the riding gloves when temps get to 40, then something like lightweight ski gloves when the temp is below 15F or so. (And I have a pair of the polypro glove liners in the pockets of every jacket I own. They're cheap, light, incredibly warm for the weight, and extremely handy to have in many situations off the bike.)
Oct
13
comment Mechanic says not to use top three/bottom two gears or the chain will throw
According to the specs it's a 27-speed, so 3x front.
Oct
13
comment Mechanic says not to use top three/bottom two gears or the chain will throw
Presumably he was advising against "cross-chaining". But even when you're cross-chaining the chain should not come off THAT easily (assuming you were not abusing the bike by, eg, shifting under extreme load). It's mainly not advised because it causes excessive wear and noise, and the problem is usually only significant on a 3x front.
Oct
13
answered How often should the headset be tightened?
Oct
13
comment How to dress for biking 3 miles to work in 40 and below so not to sweat to much but still keep warm
I used to commute to work 10 miles each way (25 when I took a "short cut" some mornings). This in southern MN (near Rochester). Down to 45-50 I'd generally wear T-shirt and running shorts. Below that I'd slip on a pair of sweatpants and a sweatshirt -- easily removed (and shoved in my pannier) when I warmed up and needed to be cooler. For temps below 30 or so I had wind pants & jacket. Would commute down to about zero. (I don't commute any more after I changed jobs and it became less convenient.)