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Search: Posts Made By: DrIsotope
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Forum: Road Cycling
01-23-20, 02:31 PM
Replies: 63
Views: 1,286
Posted By DrIsotope

I swap chains once a month. I also don't bother...

I swap chains once a month. I also don't bother with PTFE-- I tried it, and it make zero difference in performance or longevity, so far as I could tell.

The biggest single difference came from...
Forum: Road Cycling
01-23-20, 09:54 AM
Replies: 63
Views: 1,286
Posted By DrIsotope

I never intended to imply 30k out of a chain, as...

I never intended to imply 30k out of a chain, as that's absurd. I get, historically, around 3,500 miles out of a waxed chain, regardless of manufacturer.

On wet lubes under the same conditions,...
Forum: Road Cycling
01-23-20, 08:07 AM
Replies: 63
Views: 1,286
Posted By DrIsotope

I would say that in practical use, over the span...

I would say that in practical use, over the span of some 30,000 miles, that wax will increase the life of an 11-speed chain about 10% compared to wet lubes.

Wax is cleaner, quieter, and in the...
01-23-20, 07:56 AM
Replies: 28
Views: 343
Posted By DrIsotope

Nothing you put on a bike will add anywhere near...

Nothing you put on a bike will add anywhere near as much weight as the bag of meat and bones required to power it.

Say the bike weighs a chunky 30lbs, and the rider a slight 150lbs. Add 1lb of...
Forum: Road Cycling
01-22-20, 08:35 PM
Replies: 41
Views: 669
Posted By DrIsotope

I tried a Wipperman link on a non-Connex chain...

I tried a Wipperman link on a non-Connex chain just once-- and it's the only link I've ever had fail. I cannot justify the cost when I'm using $15 FSA or SRAM 11-speed chains that come with quick...
Forum: Foo
01-22-20, 02:22 PM
Replies: 16
Views: 219
Posted By DrIsotope

There's always the LA Zoo. $22 a ticket, and you...

There's always the LA Zoo. $22 a ticket, and you can bring your own food.

The wife has been mentioning Disneyland again, and that's usually about a $1k day. That hurts.
Forum: Road Cycling
01-22-20, 02:05 PM
Replies: 14
Views: 285
Posted By DrIsotope

Speed and comfort are not mutually exclusive. So...

Speed and comfort are not mutually exclusive. So long as the bars reduce the size of a rider's aerodynamic profile, they're having a benefit. Not all of us are going all out in a TT, so the bars can...
01-22-20, 11:40 AM
Replies: 16
Views: 369
Posted By DrIsotope

Just think-- Michelin has been working on the...

Just think-- Michelin has been working on the "tweel" since at least 2005 (probably well before) and it's still only suitable for low speed, high load operations like tractors (or lunar rovers.)
...
Forum: Road Cycling
01-22-20, 11:27 AM
Replies: 14
Views: 285
Posted By DrIsotope

You must have had some really bulky clip-ons, I...

You must have had some really bulky clip-ons, I guess. My Shimano PRO set weighs about 350g. I've never really noticed the weight.
Forum: Road Cycling
01-21-20, 09:39 PM
Replies: 14
Views: 285
Posted By DrIsotope

It's also like a bit of "bicycle cross training,"...

It's also like a bit of "bicycle cross training," because my position on the aerobar-fitted bike and my "normal" bike is different enough that I tend to be recruiting different muscles on each bike. ...
Forum: Road Cycling
01-21-20, 09:37 PM
Replies: 63
Views: 1,286
Posted By DrIsotope

I pull the chain out of the pot and put it...

I pull the chain out of the pot and put it straight onto the bike. Leather work glove on one hand. It's not that hot, fellas.
Forum: Road Cycling
01-21-20, 08:58 PM
Replies: 14
Views: 285
Posted By DrIsotope

I can't speak for anyone else, but that's the...

I can't speak for anyone else, but that's the primary reason I fitted mine. Add to that the ability to ride further, faster (increased efficiency) and they're worth the several months of acclimating...
01-21-20, 08:42 PM
Replies: 53
Views: 1,513
Posted By DrIsotope

Pull the other one, it's got bells on.

Pull the other one, it's got bells on.
01-21-20, 07:37 PM
Replies: 16
Views: 201
Posted By DrIsotope

Unless you're somehow crammed into an almost...

Unless you're somehow crammed into an almost impossibly small space, I dunno... keep the bike inside? Our house is not large by any measure, but I could easily clear a space to store a bike if the...
01-20-20, 09:47 PM
Replies: 58
Views: 1,797
Posted By DrIsotope

So some quick maths. Let's be conservative and...

So some quick maths. Let's be conservative and say that the leading group was moving at a modest 15mph pace. Let's assume you needed 2 minutes to air up and set out. To catch them in the span of...
01-20-20, 04:39 PM
Replies: 8
Views: 257
Posted By DrIsotope

Yeah, I use 1.625" aluminum rod to rough out...

Yeah, I use 1.625" aluminum rod to rough out bases, and fit them with whatever wood scrap I have lying around.

You can check out the gallery (https://imgur.com/gallery/BQumq) I did of stem cap...
01-20-20, 04:28 PM
Replies: 8
Views: 257
Posted By DrIsotope

I've made... a couple. Apologies for the image...

I've made... a couple. Apologies for the image sizes, these are from my Imgur from a few years ago. At told, I've probably made... a hundred? Hundred and twenty? Probably still have a few dozen...
01-20-20, 09:23 AM
Replies: 31
Views: 945
Posted By DrIsotope

If you want to see the real work of the sun, just...

If you want to see the real work of the sun, just pull open one of the back pockets and compare the color of the outside of the pocket to the inside.

Then for bibs, toss a knee warmer on top of...
01-20-20, 09:18 AM
Replies: 42
Views: 930
Posted By DrIsotope

Yes, it's called "burping." The rider on the MUP...

Yes, it's called "burping." The rider on the MUP had it worst case, because the air volume in a 23c tire is pretty small-- so when it burped, it just went dead flat. The tire was either not fully...
01-20-20, 12:51 AM
Replies: 28
Views: 666
Posted By DrIsotope

My wife doesn't like to pedal while standing. I...

My wife doesn't like to pedal while standing. I have not pressed the issue. I generally won't pedal while standing for more than a mile or two at a time. Anything approaching 10 minutes, I just feel...
01-19-20, 07:02 PM
Replies: 31
Views: 945
Posted By DrIsotope

Zipped up, and inside-out. Gloves, socks, etc....

Zipped up, and inside-out. Gloves, socks, etc. go in one of those garment bags so the washer will stop eating them.

Everything used to get line-dried, but now that some of the 2+ year old jerseys...
01-18-20, 06:43 PM
Replies: 6
Views: 126
Posted By DrIsotope

I run a 42T asymmetric ring with a 10-42 cassette...

I run a 42T asymmetric ring with a 10-42 cassette and use an uncut 116-link chain (Rival 1 RD.)
01-18-20, 01:50 PM
Replies: 6
Views: 126
Posted By DrIsotope

SRAM states that the maximum cog size for the...

SRAM states that the maximum cog size for the Apex 1 RD is a 42T. No need for a Roadlink, unless you want to slap a 50T back there.
01-18-20, 01:45 PM
Replies: 3
Views: 121
Posted By DrIsotope

It really depends on a couple of factors. If you...

It really depends on a couple of factors. If you have a bar with a decent reach to it, a stem as short as 70-80mm will feel a little quicker than the 100mm, but I don't think twitchy.

Now if your...
01-17-20, 07:54 PM
Replies: 83
Views: 4,235
Posted By DrIsotope

Underrated bands could easily fill an entire...

Underrated bands could easily fill an entire thread. Speaking for myself, and recognizing that at least for the moment this thread is wandering, I'll throw Primus out there.
Forum: Foo
01-17-20, 07:50 PM
Replies: 20
Views: 380
Posted By DrIsotope

I just got one this morning from a Orange County...

I just got one this morning from a Orange County phone number, complete with a bogus FedEx tracking number, saying I have a delivery waiting.

Not as good as the ones claiming the IRS is going to...
01-17-20, 06:50 PM
Replies: 43
Views: 594
Posted By DrIsotope

Oh, for sure. I mean, traveling 25mph into a...

Oh, for sure. I mean, traveling 25mph into a 25mph wind on a bicycle would take something between 1,700 and 2,000 watts. You'd be producing so much heat you could take your shirt off.

The...
01-17-20, 06:28 PM
Replies: 43
Views: 594
Posted By DrIsotope

Riding 10mph into a 25mph headwind, wind speed...

Riding 10mph into a 25mph headwind, wind speed 25mph.
Riding 25mph with a 25mph tailwind, wind speed 0mph.

And I reiterate: the wind speed is the wind speed; if you were to ride 25mph into a...
01-17-20, 05:58 PM
Replies: 43
Views: 594
Posted By DrIsotope

If your relative velocity is slower than the...

If your relative velocity is slower than the windspeed, the wind is never going to be hitting you faster than the wind is blowing.

If the wind speed is 20mph and your speed is 10mph, the wind...
01-17-20, 05:50 PM
Replies: 43
Views: 594
Posted By DrIsotope

As windchill is a relative expression of an...

As windchill is a relative expression of an absolute (that is, temperature) being outside @ 21F riding into a 24mph wind, the temperature is 21F. Any exposed skin will experience the sensation of...
01-17-20, 05:31 PM
Replies: 417
Views: 28,762
Posted By DrIsotope

I was on MLK Avenue literally yesterday. Harumph.

I was on MLK Avenue literally yesterday. Harumph.
01-17-20, 05:29 PM
Replies: 83
Views: 4,235
Posted By DrIsotope

My 58cm Ritchey is larger in every dimension than...

My 58cm Ritchey is larger in every dimension than the 61cm KHS frame it replaced. Bicycle frame sizing is almost random.
01-17-20, 08:40 AM
Replies: 10
Views: 244
Posted By DrIsotope

The article isn't implying that you can train...

The article isn't implying that you can train yourself to pedal heels down, and therefore lower your saddle. What is stated is that a "heel driver" has a saddle height 3-4cm lower than a "toe...
01-17-20, 08:19 AM
Replies: 12
Views: 336
Posted By DrIsotope

The OP said he rides for 25-35 miles at a...

The OP said he rides for 25-35 miles at a stretch, not that he's pro-peleton material cranking out +600W on the flats @ +90rpm... on his upright, flat bar REI bike.

I'm a big believer in...
01-16-20, 05:40 PM
Replies: 12
Views: 443
Posted By DrIsotope

I would be questioning the results of my FTP test...

I would be questioning the results of my FTP test if I would hold 94% of that number for an hour and a half, then ride comfortably the next day.
01-16-20, 03:23 PM
Replies: 16
Views: 322
Posted By DrIsotope

I've averaged 10k miles a year on the bike for...

I've averaged 10k miles a year on the bike for the past five years, and my 15yo car has... 90k miles on it, so yeah. I ride at least double the miles that I drive.

But I've been driving for 30...
01-16-20, 03:17 PM
Replies: 417
Views: 28,762
Posted By DrIsotope

Those absolutely qualify. Iowa aiming guns at...

Those absolutely qualify. Iowa aiming guns at Illinois reminds me of the recent tweet about the (British) Royals:
...
01-16-20, 10:24 AM
Replies: 83
Views: 4,235
Posted By DrIsotope

Interesting conspiracy theory, but the number of...

Interesting conspiracy theory, but the number of non-registered guests on the forum generally outnumber the registered users by at least an order of magnitude.

At this current moment for example,...
01-16-20, 10:18 AM
Replies: 2
Views: 63
Posted By DrIsotope

I don't think you're going to find a BSA BB for a...

I don't think you're going to find a BSA BB for a 30mm spindle with cups on each side just 9mm wide-- seeing as the bearings themselves are 6-7mm wide. I don't think I've seen a BSA30 BB spec'd for...
01-16-20, 10:03 AM
Replies: 417
Views: 28,762
Posted By DrIsotope

Now that's alotta 155s. No tanks! Indirect...

Now that's alotta 155s.

No tanks! Indirect fire only! Old-timey muzzle-loaders (i.e. cannons) absolutely qualify. Like the pic in post 367, most places have at least one piece of towed...
01-16-20, 08:27 AM
Replies: 11
Views: 397
Posted By DrIsotope

Sealant settling and drying out? Possibly. ...

Sealant settling and drying out? Possibly. Creating an imbalance? Nah. I had a tire last 13 months, over 6,000 miles, having fresh sealant injected into it every 6 weeks or so (it gets hot here.) ...
01-16-20, 08:14 AM
Replies: 417
Views: 28,762
Posted By DrIsotope

I'll go easy and say "artillery." I live in...

I'll go easy and say "artillery." I live in SoCal where everything is young, and can still think of 3 cannons within a 10 mile radius. Heck, there's a howitzer outside the VFW hall like 2 miles...
01-16-20, 07:46 AM
Replies: 83
Views: 4,235
Posted By DrIsotope

There's an important distinction between whether...

There's an important distinction between whether or not a shop stocks an item and whether or not they carry an item.

Pretty much every LBS out there buys from the same pool of distributors-- ...
Forum: Road Cycling
01-15-20, 10:33 PM
Replies: 54
Views: 1,972
Posted By DrIsotope

I generally feel safer out on the roads at night...

I generally feel safer out on the roads at night than I do during the day-- significantly less cars on the road, and my lights don't have to compete with the sun. I do tend to stick to familiar...
01-15-20, 08:09 PM
Replies: 417
Views: 28,762
Posted By DrIsotope

This felt like the solar panel mission all over...

This felt like the solar panel mission all over again. There's helicopters all over the place 'round here, I thought. Rode over to the podunk airport where there's a little training helicopter...
01-15-20, 09:48 AM
Replies: 417
Views: 28,762
Posted By DrIsotope

I'm getting in on this one, whether someone gets...

I'm getting in on this one, whether someone gets the jump or not-- it's currently 38 outside, and I could do all the bundling and hit the road now, or I could (and will) wait about 2 hours, because...
Forum: Road Cycling
01-15-20, 12:31 AM
Replies: 147
Views: 9,621
Posted By DrIsotope

I was at mile 32 of 45 for the day, and not...

I was at mile 32 of 45 for the day, and not particularly gassing it-- finished a no-touch ride at something like 18.9mph average. I passed the dude about four, four and a half miles from the north...
01-14-20, 08:26 PM
Replies: 42
Views: 930
Posted By DrIsotope

While I wholly understand people exercising...

While I wholly understand people exercising caution, the avoidance of high-pressure tubeless isn't really founded in anything real-- it's a phobia, I suppose. I have a good bit past 10k miles on...
01-14-20, 08:12 PM
Replies: 12
Views: 336
Posted By DrIsotope

Just doing a "guess by eye" counting of the teeth...

Just doing a "guess by eye" counting of the teeth on the front and rear Gates sprockets on the CTY 1.3, it appears to have a 55T in the front and a 26T in the rear.

Gates makes rear cogs as small...
Forum: Road Cycling
01-12-20, 10:38 PM
Replies: 147
Views: 9,621
Posted By DrIsotope

AFAIC, if you're more than a bike length back,...

AFAIC, if you're more than a bike length back, you're not drafting. I do the same as you, staying ~10 feet behind, until they invariably start going too slowly and I'm forced to pass. I don't get...
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