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Apr
13
comment What is the minimum repair kit/parts I should bring on a 150 mile bikepacking trip?
Yeah, that's a pretty civilized part of the country, and, besides that, many other cyclists will be along to lend assistance if need be. The kit you have (plus the suggested minor additions) should be plenty. The only other thing to be sure to have is rain gear.
Apr
13
comment Diagnose grinding sound from single rear cog
One possibility is that, in certain cog configurations, the derailer jockey wheels are actually rubbing/bumping against the cogs. This would typically due to chain wear and a resulting chain that's a hair too long. (For a bike of that age it's just about a given that the chain is worn out and should have been replaced 10 years ago.)
Apr
13
comment What are my options for correcting a bent aluminum fork?
Yeah, I think it would be wise to disassemble the thing and figure out precisely what is bent.
Apr
13
comment Why are most BSOs mountain bikes?
I do have a gripe that drop bars are "pushed" a bit too hard, for the mid-range buyer. First off, the bars are installed too low (looks "meaner" on the floor), and (since quills went bye-bye) it's not easy to raise drop bar. And, while different-shaped drops are theoretically available, in practice you can't find them. Plus many mid-range buyers would be perfectly happy and well served with a flat bar.
Apr
13
comment Why are most BSOs mountain bikes?
Most BSOs are sold to kids (or their parents). They are not into road biking or commuting but rather into jumping curbs, riding up/down whatever hills they can find, etc. Plus the suspension and other whiz-bangs looks neat. You can buy BSO road bikes (I believe that Huffy still sells some) but you have to look around.
Apr
12
comment Shifter with stuck barrel adjuster
Is it possible that some dirt has gotten in there?
Apr
11
comment Shifter with stuck barrel adjuster
On some shifters of that style the adjuster has a spring and sort of ratchet mechanism in it, and you must pull the adjuster barrel out to turn it.
Apr
11
comment Is the real world experience of riding a light bike understated by physics-based calculators?
It needs to be noted that Joe's "aerobic threshold" may be 300 watts one day and 325 the next. The experiment you propose is not reproducible in real life.
Apr
11
comment Where can I sell Shop Rags?
Put them on Craig's list. (Or give them away, as suggested.)
Apr
9
comment Is it OK for a child's bike to have a radially-laced rear wheel?
(In my bike repair work I've never seen a 12-16 inch wheel that was damaged, other than due to being run over by a car or some such. It's fairly common to see a 20-24 inch wheel that is damaged, though, apparently from doing stunts. But these larger wheels, to my recollection, are always "properly" interlaced (and the damage is almost always to the front wheel, not the rear).)
Apr
9
comment Is it OK for a child's bike to have a radially-laced rear wheel?
Actually, they are diagonally laced, to a degree, just not crossed. The mere fact that the hubs are drilled with holes aligned vs offset produces a diagonal lacing. What you don't have is lacing that balances the "diagonality" on both sides -- the spokes are tugging forwards on one side and backwards on the other. (On a wheel so small, with spokes maybe 5" long, there's simply no room for "crossing".)
Apr
9
comment What's this cotter pin on the barrel adjuster for?
@BenMills - To be effective, the "bumps" on the adjuster must be in contact with corresponding "bumps" on the mating surface throughout the working range of the adjuster. That ain't gonna happen in this situation.
Apr
8
comment Use a lock nut on a presta valve?
I've seen it too, by people who clearly didn't know what they were doing (and likely used a pair of pliers). I've never had it happen on my own bike, or seen it happen to a fellow cyclist.
Apr
8
comment Use a lock nut on a presta valve?
Why would you keep tightening, when the cap is snug on the valve stem? You simply tighten until the cap is reasonably tight. (Of course, it helps to understand that the cap is purely for mechanical protection, and doesn't "seal" anything.)
Apr
8
comment Use a lock nut on a presta valve?
You can strip the threads. Or simply crack the cap open.
Apr
8
comment What's this cotter pin on the barrel adjuster for?
It's to provide friction, so the adjuster doesn't unadjust itself from vibration.
Apr
8
comment Use a lock nut on a presta valve?
I've never known the dust cap on a Presta valve to be overtightened. I suppose one could do it if they really tried, but I can't see how it's a big hazard (and if it can be overtightened without the nut it can be overtightened with it in place). As to mounting a Presta valve in a rim drilled for a Schrader valve, one should use an appropriate grommet.
Apr
8
comment How does my tire pressure effect the tire's maximum load?
Realistically speaking, one can safely exceed sidewall pressure by 20-30%.
Apr
8
comment Use a lock nut on a presta valve?
I have never had a nut jam on a Presta valve.
Apr
7
comment single speed mtb chain slipping
From what little I can see of he rear cog, it looks like it's worn out.