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Search: Posts Made By: ofajen
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06-27-22, 07:22 PM
Replies: 12
Views: 208
Posted By ofajen

Definitely. At 95F, I want a strong headwind both...

Definitely. At 95F, I want a strong headwind both ways. A tailwind is the worst. OTOH, I probably wouldnít want to ride 138 miles each way into a strong headwind at any temperature.

Otto
06-26-22, 11:58 AM
Replies: 25
Views: 839
Posted By ofajen

Iím using that same model of shifter on my MTB. ...

Iím using that same model of shifter on my MTB. Iím using Scott AT-3 bars that would now be called a hornbar, so the brake and shift location is somewhat similar, but close to where the bar is...
06-25-22, 06:05 PM
Replies: 67
Views: 1,655
Posted By ofajen

Iím trying out toe clips again after about five...

Iím trying out toe clips again after about five years of only riding platform pedals. Put some some old MTB pedals from DiamondBack, think MKS Esprit, on the road bike. I got some leather Zefal...
06-23-22, 09:53 AM
Replies: 46
Views: 1,504
Posted By ofajen

Or dense mineral layers that increase local...

Or dense mineral layers that increase local surface gravity.

Otto
06-22-22, 12:52 PM
Replies: 45
Views: 5,014
Posted By ofajen

For me, the key trade-off is that the swept bar...

For me, the key trade-off is that the swept bar gives a very comfortable and stable riding position with hands back around the steering axis but you lose the excellent bar top climbing position that...
06-22-22, 06:28 AM
Replies: 56
Views: 922
Posted By ofajen

Mostly I alternate biking with going to the rec...

Mostly I alternate biking with going to the rec center and working out on weight machines and the stair climber. Also some walking as the rec center has an indoor track. These days Iíve been biking...
06-22-22, 06:16 AM
Replies: 4,057
Views: 315,056
Posted By ofajen

This time of year, youíd better be ready to...

This time of year, youíd better be ready to really bring it, if you are going to ride our MKT Trail out to the river in late evening. Horseflies lurk over and around the trail, waiting to pursue. ...
Forum: Road Cycling
06-19-22, 10:56 AM
Replies: 10,064
Views: 127,237
Posted By ofajen

Better than my usual four. Wordle 365 3/6 ...

Better than my usual four.

Wordle 365 3/6

🟨⬜⬜🟨🟨
⬜⬜🟨🟨⬜
🟩🟩🟩🟩🟩

Otto
06-18-22, 09:12 PM
Replies: 53
Views: 1,059
Posted By ofajen

During the 70s and 80s, I seem to recall I ran...

During the 70s and 80s, I seem to recall I ran 300g road tubulars at around 90psi in the rear and 80ish in the front.

These days I stay off the roads and run clincher 32s at about 55 psi on...
06-15-22, 08:36 AM
Replies: 67
Views: 1,655
Posted By ofajen

Am I right in guessing that these are cyclists...

Am I right in guessing that these are cyclists who pretty much ride clipped in all the time and are not adapted to and expert at riding on flat pedals? Or are these cyclists who have regularly and...
06-15-22, 07:57 AM
Replies: 525
Views: 18,760
Posted By ofajen

What did you get? Iíve been thinking about...

What did you get? Iíve been thinking about different, more modern bars, too. I ride mostly on crushed stone so there is a lot of vibration through the bars.

Otto
06-15-22, 07:31 AM
Replies: 55
Views: 997
Posted By ofajen

As far as what Iíve ever done, roughly [+110,+10]...

As far as what Iíve ever done, roughly [+110,+10] or 100F. In a typical year it will now be [+100,+30] or 70F.

I have never enjoyed riding below 25F and pretty much switch to working out at the...
06-14-22, 09:53 PM
Replies: 67
Views: 1,655
Posted By ofajen

Is that an actual question? Toe clips came...

Is that an actual question? Toe clips came first, so the later system is (toe) ďcliplessĒ.

Just for fun, I ordered some Zefal toe straps. I still have large KKT clips and the Superbe road pedal...
06-14-22, 07:14 PM
Replies: 33
Views: 521
Posted By ofajen

Cross-chaining: worse than wearing white after...

Cross-chaining: worse than wearing white after Labor Day, but not as bad as clubbing seal pups. Actually with modern chains itís probably not so bad. :)

Otto
Forum: Road Cycling
06-14-22, 06:59 AM
Replies: 45
Views: 980
Posted By ofajen

This is what I have long done but Iím about to...

This is what I have long done but Iím about to quit. Going forward I will patch and figure the problem and then throw the tube away when I get home. The few recent ďflatsĒ Iíve had in the last few...
06-13-22, 06:57 AM
Replies: 525
Views: 18,760
Posted By ofajen

Probably so. I put one on this bike with four...

Probably so. I put one on this bike with four black cable ties about three years ago and havenít had any issues or had to replace them.

Otto
06-12-22, 04:13 PM
Replies: 10
Views: 348
Posted By ofajen

My short cage Cyclone definitely prefers dealing...

My short cage Cyclone definitely prefers dealing with 24t or less, and still works great!

Otto
06-12-22, 02:20 PM
Replies: 525
Views: 18,760
Posted By ofajen

So after you take off the shifter bits, how do...

So after you take off the shifter bits, how do you make the bottle holder? Iím running a cheap Schwinn frame that lacks bottle mounts, so Iím using the zip-tie method.

Otto
06-12-22, 02:12 PM
Replies: 15
Views: 2,013
Posted By ofajen

You could, but the only benefit would be for...

You could, but the only benefit would be for running SS or FG. In that case, I would recommend the greatest possible care in precisely following the current dropout surface on the upper part of the...
06-12-22, 02:06 PM
Replies: 525
Views: 18,760
Posted By ofajen

Actually there are still many friction shifter...

Actually there are still many friction shifter options, including multiple different types of mounts that work with the same shifters. Dia-Compe, RivBike, SA/Sunrace, just to name a few.

Otto
06-12-22, 11:02 AM
Replies: 4,057
Views: 315,056
Posted By ofajen

23 miles. 76F dew point, so more like a swim. 🏊 ...

23 miles. 76F dew point, so more like a swim. 🏊

Otto
06-12-22, 07:30 AM
Replies: 200
Views: 4,910
Posted By ofajen

Iím amused to report that I had a flat mid-ride...

Iím amused to report that I had a flat mid-ride yesterday, replaced the tube, re-inflated until it seemed rideable and had what felt like a good ride home.

Turned out I was running the 700x32...
06-11-22, 09:57 PM
Replies: 4,057
Views: 315,056
Posted By ofajen

24 miles yesterday. It was time to play ďSnake?...

24 miles yesterday. It was time to play ďSnake? Not a Snake?Ē on the trail.

22 miles today and it was 90F, so the snakes were happy and didnít need to lounge on the rocks.

Otto
06-11-22, 10:15 AM
Replies: 20
Views: 406
Posted By ofajen

The only difference you might notice is spinning...

The only difference you might notice is spinning out on downhills at a slightly slower speed, maybe something like 40 mph versus 45 mph.

Otto
06-09-22, 06:02 PM
Replies: 6
Views: 582
Posted By ofajen

No, actually I found them super easy to install. ...

No, actually I found them super easy to install.

Otto
06-09-22, 06:00 PM
Replies: 23
Views: 473
Posted By ofajen

Yeah, as long as I can get the nice Black Chili...

Yeah, as long as I can get the nice Black Chili versions of the Conti Race King for the front and Speed King for the rear (or some other tires are able to work as well) Iíll keep riding my old MTB as...
06-09-22, 05:47 PM
Replies: 25
Views: 458
Posted By ofajen

^^^^^ This. If it does all that, buy it now. ...

^^^^^ This. If it does all that, buy it now. And ride it. A perfectly good first bike. Later on, if you want something newer and nicer, you can sell it for the same or higher or donate it to...
06-08-22, 02:45 PM
Replies: 200
Views: 4,910
Posted By ofajen

Itís not the term for energy loss in the casing...

Itís not the term for energy loss in the casing you really have to watch out for. As I mentioned, the slope of the surface impedance term above the break point is much steeper, so running too high...
06-08-22, 10:42 AM
Replies: 200
Views: 4,910
Posted By ofajen

From the article I linked on page 1:WHAT CAUSES...

From the article I linked on page 1:WHAT CAUSES ROLLING RESISTANCETo go faster, the first step is to identify what exactly is slowing us down. When looking at our tires we are looking at casing...
06-07-22, 09:27 PM
Replies: 200
Views: 4,910
Posted By ofajen

In grad school, I had the good fortune to be able...

In grad school, I had the good fortune to be able to take two classes on gravitation from Bahram Mashhoon, who, as a gravitational theorist who worked with John Wheeler, was here because we had a...
06-07-22, 09:02 PM
Replies: 374
Views: 7,842
Posted By ofajen

Ok, Iím good now. I finally forced myself to...

Ok, Iím good now. I finally forced myself to read through all the Park Tool guides on disc brake installation and maintenance and itís not that big of a deal. So, now I donít care about brake type...
06-07-22, 08:30 PM
Replies: 200
Views: 4,910
Posted By ofajen

Not sure it relates to tires, but this is not the...

Not sure it relates to tires, but this is not the way inelastic collisions work. Even if the balls collide inelasticly, momentum is conserved. So, after the collision, all the balls move together at...
06-07-22, 02:41 PM
Replies: 200
Views: 4,910
Posted By ofajen

Sorry, Iíll pass on the opinions but hereís the...

Sorry, Iíll pass on the opinions but hereís the explanation of the Silca calculator along with a good discussion on the overall topic of rolling resistance of tire casings, the impedance of surfaces...
06-06-22, 05:11 PM
Replies: 33
Views: 20,505
Posted By ofajen

If saddle theft is an issue, you can install a...

If saddle theft is an issue, you can install a short section of chain (preferably in a plastic sleeve) through the seat rails and through the seat stays.

Otto
06-04-22, 08:24 AM
Replies: 16
Views: 755
Posted By ofajen

The bars come back enough that even with a long...

The bars come back enough that even with a long stem the grip position will be back around the position of the steering axis. So your steering input forces are going to be perpendicular to the path...
06-03-22, 02:39 PM
Replies: 32
Views: 760
Posted By ofajen

Five gears in the rear? How primitive! Ancient...

Five gears in the rear? How primitive! Ancient history! I have a narrow 6 on my road bike and a 7 speed cassette on the MTB. And I use the 14 and 18 tooth cogs occasionally, not just 42/16 all the...
06-03-22, 02:33 PM
Replies: 32
Views: 760
Posted By ofajen

Yeah, I canít recall yea or nay, but it could...

Yeah, I canít recall yea or nay, but it could totally work. Shifters (at least the thumb and DT shifters I have) can handle brake cable width and since all housings back then could handle it, too,...
06-03-22, 01:59 PM
Replies: 30
Views: 830
Posted By ofajen

The first Elliptigo model introduced was the one...

The first Elliptigo model introduced was the one with the elliptical tracks and motion. This one is the more recent SUB (stand up bike) model.

A third type of motion is the teardrop motion on the...
Forum: Road Cycling
06-01-22, 08:17 PM
Replies: 36
Views: 1,664
Posted By ofajen

I try to maintain well-tended and carefully...

I try to maintain well-tended and carefully selected areas of ignorance that help me make it through life. I appreciate it when others help me in that endeavor. 😀

Otto
Forum: Road Cycling
06-01-22, 07:38 PM
Replies: 26
Views: 598
Posted By ofajen

100 miles is a lot if you arenít used to it. I...

100 miles is a lot if you arenít used to it. I did three standing only rides last summer when I was a bit saddle sore. About an hour each. Kind of a pain on a single speed, because you have to pedal...
06-01-22, 09:23 AM
Replies: 32
Views: 760
Posted By ofajen

The main change is that back then we used the...

The main change is that back then we used the same steel wound housing for brake cables and shifter cables. With indexed shifting came the new shifter housing with longitudinal wires. I donít recall...
05-31-22, 02:42 PM
Replies: 16
Views: 440
Posted By ofajen

I ride a couple of the cheap Volts. I think of...

I ride a couple of the cheap Volts. I think of them as the generic ďmodernĒ saddle. One of mine was Kona-branded and I got it from the take-off bin at a LBS. They have worked well enough that I...
05-31-22, 12:58 PM
Replies: 43
Views: 610
Posted By ofajen

The two main bearing points that work for me are...

The two main bearing points that work for me are basically the padded parts of the thumb and the pinky located in the palm. Those parts of the palm are not directly over major nerves.

Hereís an...
05-31-22, 12:22 PM
Replies: 43
Views: 610
Posted By ofajen

We are about the same age, but I have been riding...

We are about the same age, but I have been riding regularly for a number of years, so our situations are different.

Still, I will mention that I ride an old drop bar bike some and I can make my...
05-29-22, 03:47 PM
Replies: 48
Views: 3,723
Posted By ofajen

Yeah, Iíd likely just take four or five cogs out...

Yeah, Iíd likely just take four or five cogs out of a 7 speed cassette along with the spacers and then add extra spacers on either side as needed to line the chain line up pretty straight on the...
05-28-22, 11:46 AM
Replies: 27
Views: 721
Posted By ofajen

Had to repair a flat on the ride this morning. I...

Had to repair a flat on the ride this morning. I used the method of seating the tire down in the center of the rim, starting opposite the valve, moving around both sides of the rim and pulling one...
05-28-22, 11:01 AM
Replies: 48
Views: 3,723
Posted By ofajen

I have a bias towards fewer gears, having spent...

I have a bias towards fewer gears, having spent most of the last two years riding only single speed. I recently put a Suntour narrow 6 FW back on my road frame but I donít think I have used other...
Forum: Road Cycling
05-27-22, 07:49 PM
Replies: 114
Views: 2,681
Posted By ofajen

That would be about 325-425W, so, yeah that would...

That would be about 325-425W, so, yeah that would be a lot.

Otto
Forum: Road Cycling
05-27-22, 07:33 PM
Replies: 114
Views: 2,681
Posted By ofajen

No, it increases faster than a linear function. ...

No, it increases faster than a linear function. Based on the published data points at 50, 70, 90 and 110 rpm, it increases roughly as a cubic function. So it will reach 2W/kg at about 135 rpm.
...
Forum: Road Cycling
05-27-22, 07:14 AM
Replies: 114
Views: 2,681
Posted By ofajen

The article I linked agrees and gives the same...

The article I linked agrees and gives the same guidance.

Otto
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