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Search: Posts Made By: JohnJ80
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08-12-19, 08:06 AM
Replies: 39
Views: 3,430
Posted By JohnJ80

I have to say that once I got it working, itís...

I have to say that once I got it working, itís been really stable. I use the headlight every ride the taillight less so. But Iíve used the video several times with law enforcement successfully. So...
08-09-19, 04:48 PM
Replies: 104
Views: 16,907
Posted By JohnJ80

Simply not true. And Iíve tested it with lights...

Simply not true. And Iíve tested it with lights well beyond those ranges in front and back. That includes up to a Lupine Betty at 5000 lumens in the front (that will blind someone) but at these...
Forum: Road Cycling
08-05-19, 05:28 PM
Replies: 26
Views: 1,055
Posted By JohnJ80

^this. Not all that infrequently, something...

^this.

Not all that infrequently, something happens to my main bike and if I didn't have another bike to ride, I'd be grounded until the parts arrived and I had time to repair it or my LBS...
07-26-19, 04:48 PM
Replies: 10
Views: 1,254
Posted By JohnJ80

I have the Fly6ce/12ce set. It's kind of a...

I have the Fly6ce/12ce set. It's kind of a mediocre set up but it works well for what I want it to do. I use it to deal with drivers, primarily commercial, that don't give cyclists proper right of...
07-22-19, 12:11 PM
Replies: 104
Views: 16,907
Posted By JohnJ80

I got sort of interested in LED technology (I'm...

I got sort of interested in LED technology (I'm an electrical engineer in the semiconductor industry) and started tracking it in bike lighting back to about 2000. So I started collecting LED tail...
07-21-19, 09:18 AM
Replies: 104
Views: 16,907
Posted By JohnJ80

Car headlights are 700 lumens on low and 1200...

Car headlights are 700 lumens on low and 1200 lumens on high (halogen, LED are much brighter) - on that you're wrong. Cars have two of them. Here is a source...
Forum: Road Cycling
07-20-19, 05:19 PM
Replies: 85
Views: 7,221
Posted By JohnJ80

No, what I'm saying is that he could get a much...

No, what I'm saying is that he could get a much better bike than he has for the cost of that power meter. One that might not have drive train issues. You have to be able to reliably pedal the bike...
Forum: Road Cycling
07-20-19, 07:20 AM
Replies: 85
Views: 7,221
Posted By JohnJ80

A power meter would be about 20X what he paid for...

A power meter would be about 20X what he paid for the bike. He just figure out how to keep the chain on the chain rings.
07-19-19, 03:43 PM
Replies: 104
Views: 16,907
Posted By JohnJ80

I've been riding with daytime lights for a long...

I've been riding with daytime lights for a long time. When we broke over the 100 lumen barrier for LEDs, that's when I really noticed driver behavior changing in a dramatic way. By changing, I mean...
Forum: Commuting
07-19-19, 10:37 AM
Replies: 96
Views: 8,254
Posted By JohnJ80

Here in Minnesota, I think it was 1981-82 winter,...

Here in Minnesota, I think it was 1981-82 winter, we went 72 days below freezing and had something like double our normal snowfall.

Last year we had a nice cold winter with common temps often sub...
Forum: Road Cycling
07-19-19, 10:30 AM
Replies: 85
Views: 7,221
Posted By JohnJ80

Well said. Laws of Physics are a tough one. ...

Well said. Laws of Physics are a tough one.

Much more satisfying and practical to focus on physiological fitness or performance aspects related to cycling because those generally have a bigger...
07-19-19, 09:11 AM
Replies: 104
Views: 16,907
Posted By JohnJ80

AA powered lights have insufficient battery to...

AA powered lights have insufficient battery to provide good daytime visibility IMO. You need at least 100 lumens in a taillight and you need at least 500 lumens in a headlight to have solid daytime...
Forum: Road Cycling
07-17-19, 06:20 PM
Replies: 85
Views: 7,221
Posted By JohnJ80

Average speeds are misleading until you consider...

Average speeds are misleading until you consider the terrain. The only way you can compare average speed from a ride is if you ride the same route again. We ride where it's up and down hilly. ...
Forum: Road Cycling
07-17-19, 10:12 AM
Replies: 22
Views: 1,084
Posted By JohnJ80

Wow! Hard to believe it even worked like that. ...

Wow! Hard to believe it even worked like that.

I changed my chain once, then threw the bike on the car without checking it. Drove 1100 miles to ride, got on the bike and the chain started...
Forum: Road Cycling
07-16-19, 07:03 PM
Replies: 4
Views: 533
Posted By JohnJ80

I think to get aero advantage you need to be...

I think to get aero advantage you need to be something like 1.05x the tire width.
Forum: Road Cycling
07-16-19, 04:12 PM
Replies: 22
Views: 1,084
Posted By JohnJ80

add chain rings.

add chain rings.
Forum: Road Cycling
07-16-19, 04:09 PM
Replies: 22
Views: 848
Posted By JohnJ80

I have a more than a few wheel sets with DT Swiss...

I have a more than a few wheel sets with DT Swiss 240 hubs. They're not supposed to be loud, if they are, they need to be lubed. You pop off the free hub body and grease everything up with their...
Forum: Road Cycling
07-16-19, 04:03 PM
Replies: 7
Views: 850
Posted By JohnJ80

I have a 2007 LeMond Versaille that I...

I have a 2007 LeMond Versaille that I cannibalized for parts. Best I could get was about $200 for the frame and even at that, no takers.

J.
Forum: Road Cycling
07-16-19, 04:02 PM
Replies: 4
Views: 533
Posted By JohnJ80

Also makes a big difference in the size and shape...

Also makes a big difference in the size and shape of the tire. The wider the internal part of the rim, the wider the tire and the higher the profile. That seemed counter intuitive to me until I...
Forum: Road Cycling
07-11-19, 11:08 AM
Replies: 27
Views: 1,510
Posted By JohnJ80

Yes. I understand that. Three points to...

Yes. I understand that.

Three points to clarify and expand on what I said:

1. The piece about tire Size and pressure equivalent across test rides is necessary to compare because tires have...
Forum: Road Cycling
07-11-19, 09:04 AM
Replies: 27
Views: 1,510
Posted By JohnJ80

^this with emphasis that tires and inflation...

^this with emphasis that tires and inflation will make a bigger difference than anything else by maybe an order of magnitude. You pretty much can make a frame that has any riding characteristics...
Forum: Road Cycling
07-08-19, 09:26 AM
Replies: 30
Views: 1,739
Posted By JohnJ80

I think so - it's a bit of a trial and error. ...

I think so - it's a bit of a trial and error. In the podcast I referenced, Poertner suggest that filling the tire up past where you think it should be and then dropping 5psi until the higher...
Forum: Road Cycling
07-07-19, 05:31 PM
Replies: 30
Views: 1,739
Posted By JohnJ80

The pressure stamped on the tire has a lot more...

The pressure stamped on the tire has a lot more to do with legal issues and a whole lot less to do with performance.

The pure pressure vs weight charts also don't take into account rim width which...
Forum: Road Cycling
06-24-19, 06:50 PM
Replies: 129
Views: 12,188
Posted By JohnJ80

They can, but it’s beyond stupid to do so....

They can, but it’s beyond stupid to do so. Frankly, any shop that does so after understanding carbon fiber should have their advice be suspect.


I’ve always like Enve’s stuff and I love their...
06-24-19, 06:07 PM
Replies: 10
Views: 1,608
Posted By JohnJ80

I recently bought both the front and back new...

I recently bought both the front and back new cameras. There were some issues I had to work through with them and they are somewhat slow in replying but I was able to get them to work correctly and...
Forum: Road Cycling
06-23-19, 04:01 PM
Replies: 129
Views: 12,188
Posted By JohnJ80

Agree. Especially if some shop says that the...

Agree. Especially if some shop says that the frame is good, sends them on their way, the frame catastrophically fails and there is a serious injury.

I canít possibly see that being a winner for...
Forum: Road Cycling
06-23-19, 03:44 PM
Replies: 129
Views: 12,188
Posted By JohnJ80

Agree. Especially if some shop says that the...

Agree. Especially if some shop says that the frame is good, sends them on their way, the frame catastrophically fails and there is a serious injury.

I canít possibly see that being a winner for...
Forum: Road Cycling
06-23-19, 09:24 AM
Replies: 129
Views: 12,188
Posted By JohnJ80

Timely and detailed response on carbon frame...

Timely and detailed response on carbon frame damage from Lennard Zinn. His point: you canít visually inspect a carbon frame and know if itís good.
...
Forum: Road Cycling
06-21-19, 02:55 PM
Replies: 46
Views: 2,298
Posted By JohnJ80

I follow the Garmin Edge 1030 Facebook page and...

I follow the Garmin Edge 1030 Facebook page and Iíd have to say that it is not trending in Garminís favor at this point. It seems like things were much better for users until several recent updates...
Forum: Road Cycling
06-20-19, 03:07 PM
Replies: 20
Views: 974
Posted By JohnJ80

Well, I generally wear out a rear tire about...

Well, I generally wear out a rear tire about every 1500 miles or so. In that time, typically there is still plenty of sealant.

Depending on the sealant, and if you’re riding frequently, it tends...
06-18-19, 05:53 PM
Replies: 37
Views: 5,112
Posted By JohnJ80

^this. Iím 63 and I ride 17-20 miles per day...

^this.

Iím 63 and I ride 17-20 miles per day weather permitting and Iíd like to ride more. At 4-5 miles I am just starting to break a sweat.

Iím having a hard time understanding how 4-5 mile...
06-18-19, 05:48 PM
Replies: 3
Views: 1,948
Posted By JohnJ80

You can take almost any kind of rear tailight and...

You can take almost any kind of rear tailight and find a way to mount it to almost any helmet. Why not just do that?
06-18-19, 05:46 PM
Replies: 6
Views: 2,781
Posted By JohnJ80

Did you try both hubs?

Did you try both hubs?
Forum: Road Cycling
06-18-19, 04:07 PM
Replies: 20
Views: 974
Posted By JohnJ80

There is another option - if you’re worried about...

There is another option - if you’re worried about flatting. There are tubeless tubulars from Tufo and Donnelly/Clement that can be filled with sealant and repaired with a plug system (Dynaplug...
Forum: Road Cycling
06-17-19, 10:45 PM
Replies: 46
Views: 2,298
Posted By JohnJ80

For me, no question that the Wahoo ELEMNT was...

For me, no question that the Wahoo ELEMNT was considerably more reliable than any of the three Garmins Iíve owned including the latest, the Edge 1000.
Forum: Road Cycling
06-17-19, 07:40 PM
Replies: 20
Views: 974
Posted By JohnJ80

Iíve been using the Carogna Tubular tape since it...

Iíve been using the Carogna Tubular tape since it came out. It takes a little work/elbow grease to get the tire started off the rim (opposing the valve) but once itís started it gets much easier. ...
Forum: Road Cycling
06-17-19, 07:28 AM
Replies: 46
Views: 2,298
Posted By JohnJ80

After my first year experience with Garmin on...

After my first year experience with Garmin on several units, Wahoo, and Hammerhead - there is no way Iíd touch a computer in its first year as almost a minimum. Turns out itís really hard to get a...
Forum: Road Cycling
06-16-19, 09:00 PM
Replies: 5
Views: 642
Posted By JohnJ80

I have the eTap Red on two bikes and really like...

I have the eTap Red on two bikes and really like it. One bike I converted from Ultegra Di2 when AXS came out because the price was so great and I wasn’t ready to hop on the 12 speed bandwagon yet.
...
Forum: Road Cycling
06-16-19, 08:43 PM
Replies: 46
Views: 2,298
Posted By JohnJ80

Iíve had pretty much all of them. I got the...

Iíve had pretty much all of them. I got the Elemnt just after it came out and that was a bit of a trial, but I only lost one ride and that was in that phase. Rapidly, Wahoo increased the stability...
Forum: Road Cycling
06-08-19, 02:15 PM
Replies: 129
Views: 12,188
Posted By JohnJ80

Sure and I largely agree. But you know how...

Sure and I largely agree.

But you know how this plays out at the shop - someone brings it in, no one finds a crack but there was damage below the paint. Shop pronounces it fine and then it fails...
Forum: Road Cycling
06-07-19, 02:33 PM
Replies: 129
Views: 12,188
Posted By JohnJ80

^this. I'd do the same thing if it were my...

^this.

I'd do the same thing if it were my shop. Maybe that's the most honest approach than looking for a crack and pronouncing the frame good when it could be near failure.

J.
Forum: Road Cycling
05-30-19, 08:20 PM
Replies: 56
Views: 4,372
Posted By JohnJ80

Thatís interesting. I weigh considerably more...

Thatís interesting. I weigh considerably more than do you and I ride at 66/70Psi and thought that might be a bit high and was going to drop it 5% or so. I also found a noticeable difference with...
Forum: Road Cycling
05-30-19, 04:36 PM
Replies: 56
Views: 4,372
Posted By JohnJ80

Sure. But that's typically too hard and is...

Sure. But that's typically too hard and is neither fast nor comfortable and not how I'd set it up. But, you're right - if you want to pump your tires up hard then you gain nothing by going...
Forum: Road Cycling
05-30-19, 03:00 PM
Replies: 56
Views: 4,372
Posted By JohnJ80

With respect to ride quality, if you pump up your...

With respect to ride quality, if you pump up your tires hard, it doesn't matter if you have tubes or not.
Forum: Road Cycling
05-29-19, 03:34 PM
Replies: 56
Views: 4,372
Posted By JohnJ80

Iíve got a bunch more miles now on the 28mm...

Iíve got a bunch more miles now on the 28mm Schwalbe Ones. I like them a lot - very plush and fast. My average speeds have gone up a little but itís significant, stable and something I didnít expect....
Forum: Road Cycling
05-29-19, 09:24 AM
Replies: 56
Views: 4,372
Posted By JohnJ80

How much does that typically save? I have...

How much does that typically save?

I have ridden tubeless tubulars (Tufo, Donnelly/Clement) for about 10 years now because of the weight and tubeless advantages. Just recently, I've been...
Forum: Road Cycling
05-27-19, 08:53 AM
Replies: 56
Views: 4,372
Posted By JohnJ80

That IS interesting. I would have expected them...

That IS interesting. I would have expected them to be lower as well.

I put them on my road bike frame that has the tighter clearances and it was hard to tell if there was contact with the...
Forum: Road Cycling
05-23-19, 11:19 AM
Replies: 58
Views: 5,297
Posted By JohnJ80

I don't swap pads. I use Swiss Stop black prince...

I don't swap pads. I use Swiss Stop black prince pads and I interchange carbon and allow wheels with no issue. Don't even notice the change hardly. I just make sure there are no metal slivers in...
Forum: Road Cycling
05-21-19, 06:43 PM
Replies: 7
Views: 545
Posted By JohnJ80

Tons of great riding in the area. The Vail...

Tons of great riding in the area.

The Vail Valley trail that goes from almost to Eagle and then up over the Vail Pass down to Copper and - it you want to - then short connection to get around...
Forum: Road Cycling
05-21-19, 04:21 PM
Replies: 16
Views: 1,141
Posted By JohnJ80

Hard to believe. Have you asked them how they...

Hard to believe. Have you asked them how they work with customers on saddles? Most are pretty cooperative. Not necessarily a formal program but let you buy one and return it for a different one.
...
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