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Search: Posts Made By: JohnJ80
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Forum: Road Cycling
07-22-22, 05:17 PM
Replies: 41
Views: 948
Posted By JohnJ80

I've traveled with a bike many times and I'm an...

I've traveled with a bike many times and I'm an engineer. I'm also a "million miler" with a lot of international travel experience on airlines. I hate renting a bike since something is always never...
Forum: Road Cycling
06-29-22, 04:10 PM
Replies: 7
Views: 338
Posted By JohnJ80

They all interchange. The same battery and same...

They all interchange. The same battery and same charger are used for both eTap and AXS. We have both systems and we intermix the batteries all the time. In point of fact, I can't even tell which...
06-29-22, 02:55 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

Semantics. Coming from my days of offshore yacht...

Semantics. Coming from my days of offshore yacht racing in all weather, like any good navigator, I'm always skeptical of the gear. The people that have "faith" in the navigational systems and no...
06-28-22, 01:37 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

I believe most of them use both the GPS and the...

I believe most of them use both the GPS and the barometric sensor together. They do a good job keeping the other technology honest. I had the Wahoo ELEMNT when it first came out and the grade would...
Forum: Road Cycling
06-19-22, 04:39 PM
Replies: 29
Views: 1,145
Posted By JohnJ80

If I'm understanding this right, I'm kind of...

If I'm understanding this right, I'm kind of surprised that the LBS would install such a high liability part if they did not source it and knew it's history.

I don't think I'd mess with it since...
06-19-22, 04:29 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

Yep. I'm sure that's why the big feature is a...

Yep. I'm sure that's why the big feature is a hardware one. What's that Chinese Proverb? "The most important thing is that which is not being said." True here,I think. Where's the new whiz bang...
06-15-22, 02:56 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

I agree. They understand solar powered low power...

I agree. They understand solar powered low power electronics. A big part of that is low power computing and thatís the other side of this. They have that figured out too. But it also explains some...
06-15-22, 09:14 AM
Replies: 173
Views: 4,718
Posted By JohnJ80

Yep, I think that is a good characterization of...

Yep, I think that is a good characterization of this.

I can also say this - with the rapid code sprints and aggressive update cycle that HH is holding too, you do see variation in the battery...
06-14-22, 08:23 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

Yeah, Garmin's software is probably really...

Yeah, Garmin's software is probably really difficult code base to deal with at this point with many years of extending it and lots of versions for different computers. I'd imagine that it's going to...
06-05-22, 03:25 PM
Replies: 173
Views: 4,718
Posted By JohnJ80

turn off auto pause. the Karoo will shut off...

turn off auto pause.

the Karoo will shut off after no activity if no ride is started and auto pause is off.
05-19-22, 06:14 PM
Replies: 26
Views: 929
Posted By JohnJ80

wow, thatís impressive battery life! Is that...

wow, thatís impressive battery life! Is that including workouts or just as a
smartwatch? Mine gets here on Tuesday.

the angle is pretty much the whole enchilada. Iíd have to go figure it out...
05-18-22, 04:34 PM
Replies: 11
Views: 632
Posted By JohnJ80

yeah, I completely understand what youíre saying....

yeah, I completely understand what youíre saying. The tech is getting better and better every year but itís still not possible to get everything in one package. Doesnít help that expectations are...
05-17-22, 05:10 PM
Replies: 11
Views: 632
Posted By JohnJ80

The Epix has, I think, more than adequate battery...

The Epix has, I think, more than adequate battery life for my use case. The 6 days number Garmin quotes seems to be borne out by reviewers and that works well for me.

Youíre right - Iím more...
05-16-22, 03:53 PM
Replies: 26
Views: 929
Posted By JohnJ80

I think heís politely asking you to stay in topic...

I think heís politely asking you to stay in topic or move on. We all get it - you love sunscreen and think this is stupid.
05-16-22, 08:11 AM
Replies: 26
Views: 929
Posted By JohnJ80

not so in the OPís case. He already has the watch...

not so in the OPís case. He already has the watch that measured sunlight lux which means no additional cost. Hence the question.
05-15-22, 05:50 PM
Replies: 26
Views: 929
Posted By JohnJ80

I spent some time fooling with solar panels for...

I spent some time fooling with solar panels for charging reasons and what I found was that the angle of the panel to the sun has an enormous impact on the power output. I would guess that the power...
Forum: Road Cycling
05-12-22, 06:49 AM
Replies: 67
Views: 5,254
Posted By JohnJ80

Excellent! Enjoy.

Excellent! Enjoy.
04-19-22, 06:30 PM
Replies: 67
Views: 2,411
Posted By JohnJ80

exactly right. taking out features or adding...

exactly right. taking out features or adding features is not an incremental subtract or add. Itís a big engineering effort and documentation effort for a market share of one unit.

the OP should...
04-19-22, 09:32 AM
Replies: 70
Views: 3,459
Posted By JohnJ80

Excellent response. Youíve nailed it.

Excellent response. Youíve nailed it.
04-18-22, 04:49 PM
Replies: 67
Views: 2,411
Posted By JohnJ80

what you want doesnít exist almost certainly...

what you want doesnít exist almost certainly since thereís no demand for a feature set like that. If you want speed on your bike and donít want to have to do anything to get it, you need the very old...
04-18-22, 12:19 PM
Replies: 67
Views: 2,411
Posted By JohnJ80

If you want dead ass simple and no features,...

If you want dead ass simple and no features, you’re going to pay for it. Personally I think the Omata computer is a click off of useless.

otherwise buy the cheapest computer with gps you can find...
Forum: Road Cycling
02-25-22, 09:53 AM
Replies: 67
Views: 5,254
Posted By JohnJ80

That was what surprised me and was the first...

That was what surprised me and was the first lesson learned. My first experience with converting a mechanical bike that would not allow internal routing. The Di2 solution was this kind of taping the...
Forum: Road Cycling
02-24-22, 04:59 PM
Replies: 67
Views: 5,254
Posted By JohnJ80

No, you just need to replace the free hub body on...

No, you just need to replace the free hub body on most hubs.



yep.



Wiring is easy until it's not. And it still take a lot longer and is quite a bit more complicated than with wireless...
02-05-22, 05:08 PM
Replies: 109
Views: 9,458
Posted By JohnJ80

You may want to sit down for this - I dont give a...

You may want to sit down for this - I dont give a rip whether I've convinced you or not. we deal with this all the time.

FWIW, I've also spent a lot of time in Colorado in the mountains in all...
02-03-22, 07:54 PM
Replies: 109
Views: 9,458
Posted By JohnJ80

Iím not going to answer all of this because itís...

Iím not going to answer all of this because itís simply pointless and a waste of time. Itís a relatively common occurrence here and we deal with it.

The only person that said itís ďinvisible iceĒ...
Forum: Road Cycling
12-28-21, 04:56 PM
Replies: 74
Views: 2,973
Posted By JohnJ80

I have the opposite experience. Our son had a...

I have the opposite experience. Our son had a major ski crash (racer) that led to 2.5 weeks in a coma, 5 weeks inpatient rehab and 1 year out patient rehab. There wasn't a mark on his non-MIPS ski...
12-28-21, 03:52 PM
Replies: 25
Views: 3,512
Posted By JohnJ80

Exactly. If you have to tangle with traffic...

Exactly. If you have to tangle with traffic anywhere, dynamo lights are just insufficient in my view. At their very best, they're at the lower range of utility. Your math is right.



No kidding....
11-29-21, 10:38 PM
Replies: 54
Views: 4,403
Posted By JohnJ80

I've been using the Varia radars since they came...

I've been using the Varia radars since they came out. Fantastic product.

I use it in combination with a mirror on my glasses. I normally scan just like one would in a car, but the Varia...
Forum: Road Cycling
11-21-21, 02:03 PM
Replies: 55
Views: 3,610
Posted By JohnJ80

um, no. You can still get a FD piecemeal...

um, no.

You can still get a FD piecemeal from SRAM - I did not long ago when I broke mine (my fault). That's how they handle any FD's that break.

If you break a shifter, the AXS shifters...
Forum: Road Cycling
11-10-21, 02:02 PM
Replies: 131
Views: 6,464
Posted By JohnJ80

I also live in Minnesota too where under statute...

I also live in Minnesota too where under statute you're required to make an audible signal when passing (IIRC) . I've completely given up on any audible warning for a couple of reasons: the first is...
Forum: Road Cycling
10-31-21, 03:47 PM
Replies: 17
Views: 922
Posted By JohnJ80

I live and ride in Minnesota and I ride all the...

I live and ride in Minnesota and I ride all the way through the winter as long as it's above -5F.

For cold weather, the only thing I've found so far that keeps my feet warm in temps in the 20's...
Forum: Road Cycling
10-16-21, 09:57 AM
Replies: 28
Views: 2,690
Posted By JohnJ80

When I switched up to 30mm from 25mm, there was...

When I switched up to 30mm from 25mm, there was zero difference in my average speed over a route I have ridden hundreds of times. The ride was far more plush and I felt a lot less fatigued when it...
Forum: Road Cycling
09-18-21, 09:39 PM
Replies: 23
Views: 1,488
Posted By JohnJ80

I also live and ride in Minnesota - not the best...

I also live and ride in Minnesota - not the best roads and I ride until the ground freezes in early December.

That said, I used to get 6-8 flats per year until I went to tubeless tubulars with...
Forum: Road Cycling
09-10-21, 11:43 AM
Replies: 56
Views: 3,065
Posted By JohnJ80

Sounds like you got it figured out. 👍 now,...

Sounds like you got it figured out. 👍

now, if you havenít done it already, figure out the right tire inflation and enjoy.
Forum: Road Cycling
09-08-21, 05:17 PM
Replies: 6
Views: 584
Posted By JohnJ80

If you go to their website, they have printable...

If you go to their website, they have printable templates for the bags. You cut them out and tape them together and they show you how it fits in the frame.

With the full frame bags, you just put a...
Forum: Road Cycling
08-28-21, 05:25 PM
Replies: 17
Views: 1,078
Posted By JohnJ80

Ive been riding tubeless now on all bikes since...

Ive been riding tubeless now on all bikes since about 2009. Before tubeless clinchers were out, I was riding Tufo Tubulars which are tubeless. All the same problems etc... with sealant were there...
Forum: Touring
08-28-21, 04:35 PM
Replies: 52
Views: 3,682
Posted By JohnJ80

OP - you forgot a bunch of Fed Ex forms for all...

OP - you forgot a bunch of Fed Ex forms for all the stuff you're going to ship home.

I did a 6 week trip of the UK and Ireland with about 20 lbs per person with full camping gear and it all fit...
07-22-21, 12:13 PM
Replies: 24
Views: 2,214
Posted By JohnJ80

Been there, done that (ie. used a phone). ...

Been there, done that (ie. used a phone).

Virtually no phones now have ANT+ connectivity. Using BT to connect to sensors is a giant PITA because it's a one to one connection. ANT+ is a one to...
Forum: Road Cycling
07-01-21, 06:00 PM
Replies: 28
Views: 1,308
Posted By JohnJ80

I always forget to add that you have to make sure...

I always forget to add that you have to make sure your pump gauge is accurate which they typically arenít. Iíve seen pumps off by as much as 15psi when 5psi matters big time to the ride quality.
...
Forum: Road Cycling
06-30-21, 04:36 PM
Replies: 28
Views: 1,308
Posted By JohnJ80

Josh Poertner from Silca has a Marginal Gains...

Josh Poertner from Silca has a Marginal Gains podcast and in one of the episodes they discuss vertical compliance. Turns out about 90% of vertical compliance comes from the tires and inflation.

I...
Forum: Road Cycling
06-28-21, 06:19 PM
Replies: 8
Views: 974
Posted By JohnJ80

As in most things, you get what you pay for. ...

As in most things, you get what you pay for.

A lot of the cheaper racks that either clamp to the frame, have hooks that go over the frame or that you hang the bike from are cheap but they can...
Forum: Road Cycling
06-19-21, 05:02 PM
Replies: 229
Views: 12,273
Posted By JohnJ80

Iím right there with you. I have not had a...

Iím right there with you.

I have not had a flat that made stop for the last three years. Thatís 12,000 without a flat. Had I been running tubes, that would have represented at least 18 tubes and...
Forum: Road Cycling
06-18-21, 06:04 PM
Replies: 33
Views: 1,368
Posted By JohnJ80

Itís all tied together one way or another. I...

Itís all tied together one way or another.

I follow Poertnerís podcast Marginal Gains and, if I have this right, the rolling resistance doesnít change a whole lot until it gets really soft and...
Forum: Road Cycling
06-18-21, 04:31 PM
Replies: 33
Views: 1,368
Posted By JohnJ80

See above - our posts crossed in the ether. ...

See above - our posts crossed in the ether.

It also depends on how repeatable the pump gauge is. You could have an inaccurate gauge but it was repeatable and as long as you used that pump, you'd...
Forum: Road Cycling
06-18-21, 04:29 PM
Replies: 33
Views: 1,368
Posted By JohnJ80

Apparently how Poertner (Silca CEO with an MSEE)...

Apparently how Poertner (Silca CEO with an MSEE) did it, was by collecting lots and lots and lots of user data from race teams and users and then applied a little machine learning to it. It's not a...
Forum: Road Cycling
06-18-21, 03:55 PM
Replies: 70
Views: 4,815
Posted By JohnJ80

I had bought the Friction Facts reports a few...

I had bought the Friction Facts reports a few years ago so I went and dug them out. Here's what Friction Facts said about factory lubes:



Their purpose is not to provide a slick chain, but to...
Forum: Road Cycling
06-18-21, 03:26 PM
Replies: 70
Views: 4,815
Posted By JohnJ80

That's how business is done in Asia. Even the...

That's how business is done in Asia. Even the biggest companies in the world (think $100B+ in sales) still will do special deals if someone shows up with a suitcase of money and they have a...
Forum: Road Cycling
06-18-21, 02:51 PM
Replies: 229
Views: 12,273
Posted By JohnJ80

Yeah, well - I live and ride in a rural, heavily...

Yeah, well - I live and ride in a rural, heavily wooded area in Minnesota. Stopping for even a very short period of time at the height of summer can be exceedingly unpleasant from a mosquito...
Forum: Road Cycling
06-13-21, 06:59 PM
Replies: 37
Views: 4,608
Posted By JohnJ80

thereís a hack where you install blips (buttons...

thereís a hack where you install blips (buttons places somewhere else other than brifters)near the shifters. Since the blips operate as the paddle for the shifter theyíre attached to, if you put the...
Forum: Road Cycling
06-12-21, 11:56 AM
Replies: 134
Views: 15,038
Posted By JohnJ80

I donít agree. If anything the damper would limit...

I donít agree. If anything the damper would limit oscillations of the frame and change the mechanical resonance. Think what happens if you were to put a rubber piece in the middle of a tuning fork.
...
Showing results 1 to 50 of 147
 


 
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