Jerry Coffin
  • Member for 11 years, 4 months
  • Last seen more than a month ago
Why is carbon fiber inherently weak? Or is it?
28 votes

First a disclaimer: most of what I know about carbon fiber fabrication comes from aircraft, not bicycles. Also note that carbon fiber is not the only composite that gets used -- just for one ...

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How do I locate and loosen the rear derailleur hanger bolt?
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15 votes

I've put a red circle around the hanger bolt.

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What are some good films about cycling?
10 votes

Old but still worthwhile: Breaking Away.

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Can I get smaller tires without changing my rims?
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7 votes

Most 700c rims will work with essentially any size of tire. Yes, smaller tires generally reduce rolling resistance a little, but unless you're road racing, it's rarely worth going below about 700x23c, ...

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Best chain lubricant for commuter/utility bikes?
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6 votes

I prefer White Lightning. The major proviso is that you must shake it thoroughly before application. It's wax-based, so it generally picks up less dirt than most of the alternatives. You want to wash ...

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what to do during the week before a century?
5 votes

Make sure you get plenty of sleep, eat about normally, and ride less -- mostly just enough to stretch your legs, with maybe one semi-hard ride to tire you out somewhat. If you do that, do it early in ...

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Do aluminum rims provide better braking than steel ones when wet?
4 votes

Yes, aluminium rims help wet braking performance a lot compared to chrome plated steel rims. You still usually need roughly one rotation of the wheel for the brake block to wipe off most of the water ...

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What cadence should I aim for?
4 votes

I'd rather see at least 70 most of the time, and never drop below 60 if there's any way to avoid it. Then again, I've always pedaled a high cadence -- even now (in my mid-40's) I break 160 RPM ...

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Truing stands, go big or stay home?
4 votes

The cheaper one will probably work reasonably well, but (crucial point) you'll need to use a dishing tool with it. With reasonably careful adjustment, a TS-2 can substitute for a dishing tool most of ...

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Why do racing cyclists wobble when furiously pedalling?
3 votes

@STW has the right idea, but I think it's worth noting that to the extent possible, you're trying to hold your upper body still, and (especially when sprinting) you "wobble" the bike under you to ...

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Can anyone recommend a good maintenance-free rear shock?
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3 votes

At least in my experience, Risse Racing shocks require relatively minimal maintenance. A quick glance shows that their Jupiter 5 (and 5R) are definitely available in/around the length you've asked ...

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Creaking from cranks/spindle. How to fix?
3 votes

Based on the number and diversity of answers you've already received, you can probably guess at the real fact: there are a lot of possibilities, and it's difficult (at best) to be certain which ...

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bottom bracket refacing
1 votes

A lot here depends on the "shape" of the imperfection. I'd be looking for contact around something like three fourths of the circumference. If you have contact most of the way around the ...

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mountain bike chainsuck, replacing parts while thinking of future upgrades
1 votes

Just a couple of notes: first of all, what you're thinking are missing teeth may well be intentional as well. Even on a brand-new chain-ring, some of the teeth are shortened (some of them a lot) to ...

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