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


Feb
26
comment New Chain causing skipping on cassette - will this work itself out or is it unsafe?
5000 miles is about what you can expect from a cassette -- maybe more, maybe less. (And 2000 miles is about what you should expect from a chain.)
Feb
26
comment Leak only inside the tire
But my guess would be a defect near the stem that is somehow opened up by placing it on the rim.
Feb
26
comment Leak only inside the tire
15 PSI is hardly inflated. Did you try inflating it to a higher pressure while in the tire?
Feb
26
comment How can I charge my phone while cycling?
I think I'd first look for a solar charger, and attach it to a rear rack. Would only consider a dynamo charger if I already had the dynamo.
Feb
26
comment Can I flip my worn chain to extend it's life?
(Keep in mind that when the chain is in use the front sprocket is bearing on the opposite side of the pins than the rear sprocket. The wear is about as symmetrical as can possibly be imagined.)
Feb
26
comment Can I flip my worn chain to extend it's life?
No. As others have said, the main "wear" that a chain experiences is in the plate joints, resulting in "chain stretch" that will be identical either direction. And when you use, eg, a chain stretch gauge you're inherently measuring both sides.
Feb
26
comment Why does my rear derailleur keep breaking?
You sure the derailer's not getting into the spokes? Do you have a spoke guard?
Feb
25
comment Front Fork Bent After Crash
@Kibbee - Yep, the standard spoked bike wheel is remarkably strong.
Feb
25
comment Front Fork Bent After Crash
I don't see the point in using a lathe. You would want to pad the post when you put it in a vise, though.
Feb
24
comment Can you put disc brakes on road forks originally intended for calipers?
Even though I'm no great fan of disks, "Tyler's" story is an example of foolishness -- you should never ride your brakes on a long downhill. Not in a car, not on a bike.
Feb
24
comment Front Fork Bent After Crash
I knew a guy who ran into a parked car (in broad daylight!) and similarly bent his fork. The tire didn't quite touch the downtube (a few mm clearance). He rode it like that for months -- dunno what he eventually did.
Feb
24
comment Convert fixed gear to coaster bike
And it's wise to consider whether the frame is built to withstand the forces involved. Generally the arm is fixed to the chainstay, but a violent stop could rip loose a lightly-fastened chainstay. Not as big a problem as putting disks on a front fork not designed for disks, but the same basic concern.
Feb
24
comment Can you put disc brakes on road forks originally intended for calipers?
@trailmax - With difficulty. People have done it (especially in olden days when disk brakes were only available as a DIY project). Either you devise a clamp (there may be some on the market) or you weld tabs to the fork.
Feb
23
comment Thinking of getting a new chainset
I've never had that much trouble with square taper. The only real problem is assuring that they're tight.
Feb
23
comment Thinking of getting a new chainset
In terms of replacing a bottom bracket cartridge the critical factors are the width of the shell and the diameter and thread for the cups. Mostly (but not entirely) the cup diameter/thread is standard now, but there are several different common widths. Cups can be adjusted a little bit for a minor width mismatch, but it has to be close. (And, of course, all bets are off if you have some sort of exotic crank.)
Feb
23
comment How does one test the freewheel?
It may be that the ratchet cogs are sticking slightly, and the vibration of simply readying the bike to ride on the road frees them. Try bouncing the bike a few times before mounting the trainer, and see if it makes a difference. If this is the problem it's not a serious failure lurking, but lubing the ratchet mechanism may be wise. (But use care lubing -- there are many wrong ways to do it.)
Feb
23
comment Can you put disc brakes on road forks originally intended for calipers?
It's probably unwise to put a disk brake on a carbon fork that's not designed for disks. You'd have to clamp the brake caliper to the tine, and it would put undue stress on the carbon. Even with a steel fork it's a bit iffy.
Feb
23
comment Thinking of getting a new chainset
That depends. Have you ever replaced a bottom bracket?
Feb
23
comment How does one test the freewheel?
There is a certain amount of distance the sprocket must turn relative to the hub before the ratchet engages. This varies with the design of the ratchet mechanism -- some move very little, others maybe 1/4 revolution worst case. Note that you can also get what seems like slip with a freewheel, when a cluster has just been installed and has not yet screwed itself on tight. But this only occurs the first 3-4 times you put force on it. I can't think of any reason that any effect would be more obvious on the trainer, though.
Feb
22
comment Are v-brake pads compatible with cantilever brakes
There are some differences in the size/shape of mounting posts of different "generations" of pads, but the basic function and the geometry is the same regardless. There is some difference in the "optimal" pad characteristics depending on short vs long "pull", but nothing major.