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location Minnesota, USA
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visits member for 3 years, 10 months
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Old, tired, crazy.


Apr
8
comment Chain with master link / quick connect link doesn't clear rear derailleur
I suspect you have the wrong type of chain. The master link in the picture is not for a derailleur-style bike.
Apr
7
comment Repairing a damaged cone nut
Yeah, take it to a bike shop (take the axle with, so the thread is a sure match). Most shops should have replacements. And be sure to replace all the balls while you're in there -- get those at the shop too.
Apr
7
comment former weightlifter turned triathlete repeatedly breaking hanger
There is also the possibility that you are pedaling hard enough to cause the wheel's axle to shift forward and twist, which could cause various problems. You may simply need to set the quick release tighter, or you may need a "wheel tug" to hold it in place.
Apr
7
comment new MTB creacking on hard pedaling
If they are new bikes, purchased from a real bike shop, take them back and have the shop mechanic at least tighten up a few things.
Apr
7
comment creaky sound when cranking
The most critical possibility is that a crank arm is loose on the crank shaft. If this is the case then the crank arm can be damaged in short order, so you should check the crank arm immediately and tighten it if there is any play at all between arm and shaft. Beyond that, pedals and bottom brackets often make nose for no real reason. Sometimes tightening the BB cups will fix the noise, but it's not a emergency.
Apr
7
comment former weightlifter turned triathlete repeatedly breaking hanger
(You might want to have a cyclist friend check out your shifting technique.)
Apr
7
comment former weightlifter turned triathlete repeatedly breaking hanger
If you use the bike properly, additional force on the pedals has no effect on the force on the derailer hanger. You basically have a problem with the derailer -- either it's misadjusted or you're being far too forceful in your shifting, and not letting the indexed shifter do its thing. Also, you should get a spoke guard for the bike, so a the derailer does not jamb the spokes when it goes too far inward.
Apr
6
comment How to repaint a Carbon bike frame?
I certainly wouldn't advise sanding, beyond perhaps a very light once-over with very fine paper to remove some of the glaze. And any paint/primer used must be selected to be compatible with the resins of the frame. Using the wrong stuff could cause the resin to go soft or begin to delaminate.
Apr
6
comment Rear derailleur shifts all gears at once
It sounds to me like your shifter is sticking, or perhaps your cable is sticking. Cables do wear out, and they also (except for some newer styles) need occasional lubrication. And shifters stick, especially in cool weather.
Apr
4
comment Trouble Removing bottom bracket. Is it my Tool?
When you use the socket wrench, use your other hand under the head of the wrench, pulling up as you press down with the wrench, so that you neutralize the force and the socket stays on square. You also may be able to run a bolt in through the socket opening to lock the socket in place.
Apr
4
comment Are today's bikes “better” than a few decades ago?
While I agree with some of your sentiment (what little I read), TL;DR. (Hint: There is an "Enter" key on the right side of your keyboard. Learn how to use it occasionally.)
Apr
3
comment I want to weld or braze the pedal to the crank arm, but what metals are they?
The feature you describe would only be important on a fixie. And pedal bearings jamming is incredibly rare. Far more likely would be, eg, a toe strap getting hung on the crank, and having the pedal unscrew would do nothing for that.
Apr
3
comment I want to weld or braze the pedal to the crank arm, but what metals are they?
The direction of the threads is not to make the pedal unscrew if the bearings jam, but to prevent precession from unscrewing the pedal.
Apr
3
comment Geometry measurement, from where to where
Unfortunately this stuff is not all that well standardized. Seat tube length, eg, may be to the center of the BB or to the bottom, depending on whose system you're using.
Apr
3
comment Spongier brake pads = longer rim life?
You should pick the brake pad stiffness based on how it brakes, not based on potential rim wear or how fast the pads will wear out. The "ideal" pad varies with rim, brake style, and rider habits.
Apr
2
comment how much of a difference does bike weight make when trying to maximize the bike's top speed?
bicycles.stackexchange.com/questions/7428/…
Apr
2
comment how much of a difference does bike weight make when trying to maximize the bike's top speed?
Figure out what the difference in weight is. Likely it's on the order of 5 pounds, maybe 10 in the extreme case. What fraction of total bike+rider weight is that? 5 pounds for a 150 pound rider is about 3%. This is the amount that your acceleration and hill-climbing will be affected. Your flatland top speed will not be affected. Other effects -- riding stance, bike geometry, tire efficiency, etc -- will be far more significant in most cases.
Apr
1
comment Spoke puncturing my tube, can I cut it?
(Note that, if you choose to "rescue" the spoke somehow, you should make sure there is thread range left on the spoke, and that the nipple is not already tightened up against the top of the threads, preventing the spoke from being properly tensioned.)
Apr
1
comment Spoke puncturing my tube, can I cut it?
It is common for wheel manufacturers to use spokes that are a hair long (so they can, eg, use the same size spoke on both sides of a rear wheel) and then, after the wheel has been assembled, grind down the end of the spoke. You could perhaps accomplish the same thing with a Dremel-style rotary tool.
Mar
31
comment Why are spoke nipples called nipples?
"Nipple" is the term for a short piece of pipe, and the term is also used in mechanical work for other similar objects. Nothing unique to bikes.