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Search: Posts Made By: RFEngineer
Showing results 1 to 50 of 186
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Forum: Road Cycling
07-30-20, 07:55 PM
Replies: 32
Views: 2,152
Posted By RFEngineer

Getting Over Fear After Crash

I crashed coming down a mountain road in May. I basically ran off the road during a turn and tumbled. Broke a rib and a vertebrae. For the last 3-4 years I've been doing a lot of riding up and down...
Forum: General Cycling Discussion
02-19-19, 09:16 PM
Replies: 12
Views: 1,084
Posted By RFEngineer

Artistic Cycling

This is something I have never seen, and thought you guys would appreciate.

https://youtu.be/OQ2HyfWCq8g

https://youtu.be/WsUxeagGgyU

Alan
Forum: Road Cycling
12-27-18, 05:32 PM
Replies: 24
Views: 1,979
Posted By RFEngineer

I found this on the ST-8020-R webpage. So can any...

I found this on the ST-8020-R webpage. So can any of the road shifters go more than 2 rear downshifts at a time?
...
Forum: Road Cycling
12-26-18, 08:34 PM
Replies: 24
Views: 1,979
Posted By RFEngineer

Shimano Downshifting

I have the Shimano ST-RS685 hydraulic brake levers. They can only "downshift" two gears at a time. My old 4600 shifters would do three at a time. Do any of the new hydraulic levers shift up to three...
Forum: Road Cycling
11-17-18, 12:36 PM
Replies: 22
Views: 1,345
Posted By RFEngineer

I use the meetup app. I am actually asking...

I use the meetup app. I am actually asking because numbers were down this year for the weekly ride i frequent and I was wondering if people have moved onto something else.
Forum: Road Cycling
11-17-18, 11:58 AM
Replies: 22
Views: 1,345
Posted By RFEngineer

Finding group rides

Do you use a service/app to find group rides? I have been using meetup.com for a few years and I'm wondering if something has come out that more people are using.
Alan
Forum: General Cycling Discussion
11-01-18, 09:14 PM
Replies: 114
Views: 7,432
Posted By RFEngineer

It's not the cold that bugs me, it's the darkness...

It's not the cold that bugs me, it's the darkness at 5pm. I love my weeknight evening rides in the summer and miss them starting this time of year. With two young kids I have to find available times...
Forum: General Cycling Discussion
10-07-18, 09:34 PM
Replies: 111
Views: 40,174
Posted By RFEngineer

2000 miles, 200k feet climbing is the goal. I...

2000 miles, 200k feet climbing is the goal. I have two kids under 5 and I don't see how I could do any more.
Forum: Road Cycling
09-28-18, 04:31 PM
Replies: 16
Views: 1,952
Posted By RFEngineer

Thanks! It looks like my wear indicators are...

Thanks! It looks like my wear indicators are still present. Does anyone think the flats (flat spots on the tire) that are created as a tire wears down affect handling?
Forum: Road Cycling
09-28-18, 12:37 PM
Replies: 16
Views: 1,952
Posted By RFEngineer

Do Tires Lose Traction With Wear?

I am getting less confidant on some of my descents because I feel like my tires are near the point of losing traction. Mostly, this is happening when I am having to brake hard going down a steep...
Forum: Road Cycling
09-17-18, 07:58 PM
Replies: 3,261
Views: 638,284
Posted By RFEngineer

Near the top of Sunshine Canyon, west of Boulder,...

Near the top of Sunshine Canyon, west of Boulder, CO.
https://cimg2.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/4253928_1__2b9bdab8f425fefb6eb7de9037be73aa3abd5a39.jpg
Forum: Road Cycling
08-11-18, 03:52 PM
Replies: 2
Views: 540
Posted By RFEngineer

I have never done it, but look into automative...

I have never done it, but look into automative paint. There are single-stage systems and base/clear coat systems.
Alan
Forum: Road Cycling
08-10-18, 09:13 AM
Replies: 17
Views: 977
Posted By RFEngineer

Thanks for the input! I just ran across this...

Thanks for the input! I just ran across this article:
Two weeks in the mountains can change your blood for months | Science | AAAS...
Forum: Road Cycling
08-07-18, 11:33 PM
Replies: 17
Views: 977
Posted By RFEngineer

Altitude

I live in Denver, around 5500 feet. I can currently ride up into the mountains at 10k or 11k ft asl and not notice any problems. I am thinking about doing a big organized ride (Triple Bypass) next...
Forum: Mountain - Plains
08-06-18, 08:26 AM
Replies: 1
Views: 883
Posted By RFEngineer

Tour de Steamboat vs Copper Triangle

I just completed the Copper Triangle organized ride and had a blast! Already thinking about what to do next year. Can anyone say how Tour de Steamboat compares in difficulty level and scenery...
Forum: General Cycling Discussion
07-15-18, 03:21 PM
Replies: 52
Views: 5,437
Posted By RFEngineer

Gravel: Higher risk of minor injuries Highway:...

Gravel: Higher risk of minor injuries
Highway: Low (but higher than gravel) risk of death
Forum: Professional Cycling For the Fans
07-02-18, 12:22 PM
Replies: 18
Views: 2,022
Posted By RFEngineer

I'm over it too. Total snore fest lately.

I'm over it too. Total snore fest lately.
Forum: Professional Cycling For the Fans
07-02-18, 11:15 AM
Replies: 154
Views: 12,961
Posted By RFEngineer

I had already decided not to watch this year....

I had already decided not to watch this year. This just seals the deal. I have better things to do than watch ~100 hours of nothing for the possibility of a few minutes of excitement. I'd rather ride...
Forum: Road Cycling
05-11-18, 09:44 AM
Replies: 21
Views: 1,710
Posted By RFEngineer

Pace to Power or HR? Hotter Temperatures

I have a power meter, but I probably don't use it, or train with it, properly. It's more of an indicator of how hard I pushed on a ride, at this point. I have noticed my times suffering in the last...
Forum: Advocacy & Safety
05-09-18, 10:35 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

The family already took a settlement. I wonder if...

The family already took a settlement. I wonder if Uber already knew about the cause of this accident.
Forum: Advocacy & Safety
03-29-18, 03:46 PM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

Exactly. This seemed awfully fast for a...

Exactly. This seemed awfully fast for a settlement to be reached. But I guess Uber is desperate to keep the family quiet and make this go away in general.
Forum: Advocacy & Safety
03-29-18, 10:37 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

Isn't this what we should be talking about??

Isn't this what we should be talking about??
Forum: Advocacy & Safety
03-29-18, 08:22 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

For those of you saying it won't cost that much...

For those of you saying it won't cost that much more to basically go from "good enough" safety to "almost perfect" safety, how much do LIDARs cost? Last I heard, it was ~$70k. I know they are working...
Forum: Advocacy & Safety
03-28-18, 12:36 PM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

Cost-benefit analyses will surely drive the...

Cost-benefit analyses will surely drive the industry, just like it does today. Every day, companies weigh the possible cost of lawsuits vs fixing a known problem. Nothing is going to change that....
Forum: Advocacy & Safety
03-28-18, 08:58 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

This is my biggest fear with AVs. The inevitable...

This is my biggest fear with AVs. The inevitable "cheapening" of the hardware included on each vehicle. Companies are going to want to profit and the sensors are expensive, so they will remove all...
Forum: Advocacy & Safety
03-26-18, 08:25 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

For those of you blaming the victim, what is...

For those of you blaming the victim, what is really the technical difference between this situation and a bicycle traveling properly down the road in the same lane as the AV? The cyclist would...
Forum: Recreational & Family
03-22-18, 11:30 PM
Replies: 3
Views: 1,727
Posted By RFEngineer

First Bike for 4yo

My oldest son is about to turn 4. I want to get him a bike, but don't know whether to get a balance bike, or a pedal bike with training wheels. What do you recommend?
Forum: Advocacy & Safety
03-22-18, 10:45 AM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

This. If the "safety driver" is already treating...

This. If the "safety driver" is already treating the car as infallible, what is the point? This just shows human nature. Human's will either be "engaged" or not. There is no in between.
Forum: Advocacy & Safety
03-12-18, 06:11 PM
Replies: 19
Views: 1,683
Posted By RFEngineer

Do you request road maintenance?

I have had decent success in complaining to my city/county about potholes in roads. I have found that governments take pride in responding quickly to these types of requests. Whether they actually...
Forum: Mountain - Plains
03-10-18, 08:44 PM
Replies: 9
Views: 2,415
Posted By RFEngineer

Denver Wind

Is the wind always this bad this time of year? It seams to me we are having more windy days than in the last few years. Thoughts?
Forum: Road Cycling
01-30-18, 03:45 PM
Replies: 105
Views: 10,718
Posted By RFEngineer

Yes, Sunday was the real bummer day, when I...

Yes, Sunday was the real bummer day, when I canceled my weekend ride. Not sure what the wind speed was, but it looked to me like it would blow me off the road, or into traffic.
Forum: Road Cycling
01-30-18, 02:57 PM
Replies: 105
Views: 10,718
Posted By RFEngineer

I live right by the National Wind Technology...

I live right by the National Wind Technology Center, https://www.nrel.gov/nwtc/, where they test wind turbines to failure. So yeah, the wind can be bad where I am.

That said, I went out today, and...
Forum: Road Cycling
01-30-18, 11:45 AM
Replies: 105
Views: 10,718
Posted By RFEngineer

How Much Wind Do You Tolerate?

At what point will you cancel your ride because of the wind? 15 mph sustained winds? 20? 30? I've had a couple beautiful days here lately, but the wind has been ridiculous. There's no way I can have...
Forum: General Cycling Discussion
01-16-18, 10:14 AM
Replies: 96
Views: 9,096
Posted By RFEngineer

There is going to be survivorship bias in the...

There is going to be survivorship bias in the responses to this thread. A family friend crashed on his bike 10 years ago and ended up with a brain injury. He has never been the same.

Anyone who...
Forum: Advocacy & Safety
01-05-18, 02:23 PM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

I have flown with my kids and it is a nightmare....

I have flown with my kids and it is a nightmare. I hope the AV "rental" market doesn't model itself after the airlines. You only have to plan your airline trip 2+ weeks in advance to get a good...
Forum: Advocacy & Safety
01-03-18, 09:37 PM
Replies: 2,987
Views: 224,786
Posted By RFEngineer

Do any of you folks have young kids? They are...

Do any of you folks have young kids? They are supposed to ride in car-seats until some ridiculously old age, like 10. Car seats are not something I want to be taking in/out of a ride-for-hire...
Forum: Professional Cycling For the Fans
12-17-17, 09:26 PM
Replies: 149
Views: 20,189
Posted By RFEngineer

https://pvcycling.wordpress.com/2017/12/16/the-tru...

https://pvcycling.wordpress.com/2017/12/16/the-truth-behind-chris-froomes-doping/
Forum: Professional Cycling For the Fans
12-15-17, 12:09 AM
Replies: 149
Views: 20,189
Posted By RFEngineer

"CMG: There are two medications that are used as...

"CMG: There are two medications that are used as immediate relief. Salbutamol and Terbutaline. Salbutamol doesn’t need a TUE as long as you don’t exceed a certain amount. And, to be honest, you can’t...
Forum: Road Cycling
12-05-17, 11:16 PM
Replies: 72
Views: 6,746
Posted By RFEngineer

Just to add something that I don't think has been...

Just to add something that I don't think has been mentioned: flat centuries promote drafting. A cyclist can easily go faster than he could by himself by working with others. Add in big climbs, and...
Forum: Winter Cycling
11-20-17, 03:47 PM
Replies: 41
Views: 9,691
Posted By RFEngineer

Good answers so far. Just throwing out there that...

Good answers so far. Just throwing out there that sunlight will affect things too. If it's a sunny 20 degrees freezing will take longer than a cloudy day at the same temperature. I don't think anyone...
Forum: Winter Cycling
11-18-17, 11:47 AM
Replies: 12
Views: 3,499
Posted By RFEngineer

Shoe Covers vs. Overshoes

GCN videos on YouTube talk about these two things being different. I have never been able to find "overshoes" for sale. Are they different from shoe covers and can you post links showing the two...
Forum: Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs
08-13-17, 08:04 PM
Replies: 23
Views: 8,534
Posted By RFEngineer

Son Missing 4 Left Fingers

I would like to get my 3 yo son into bike riding. He was born missing the 4 fingers on his left hand. He will be able to grab and hold onto handlebars with that hand, but I don't think he'll be able...
Forum: Professional Cycling For the Fans
07-03-17, 02:35 PM
Replies: 56
Views: 13,012
Posted By RFEngineer

This. It's ridiculous. I emailed their support...

This. It's ridiculous. I emailed their support about it Sunday, but haven't heard anything.
Forum: General Cycling Discussion
06-24-17, 12:44 PM
Replies: 12
Views: 1,010
Posted By RFEngineer

I pretty much store my hydraulic disc brake bike...

I pretty much store my hydraulic disc brake bike laying on its side in my car all the time. Never noticed any problems.
Alan
Forum: Bicycle Mechanics
01-29-17, 05:04 PM
Replies: 4
Views: 1,257
Posted By RFEngineer

I believe I fixed the problem. I wet-sanded the...

I believe I fixed the problem. I wet-sanded the pads with 120 grit and acetone. I also went over the rotor with some fine sandpaper I had laying around (300+ grit). Thanks for the help!
Alan
Forum: Bicycle Mechanics
01-28-17, 05:02 PM
Replies: 4
Views: 1,257
Posted By RFEngineer

Disc Brake Squeal

I have two disc-brake road bikes. My first has perfect braking. I just built the second and am having trouble with the rear brake. It squeals like mad and has very little stopping power. I just filed...
Forum: Road Cycling
11-10-16, 11:02 PM
Replies: 46
Views: 8,103
Posted By RFEngineer

Carbon Saddle Too Slippery

I have a carbon saddle that is awesomely light, but it is so smooth and slippery, my butt slides all over it. Has anyone else had this problem and how did you deal with it?
Thanks!
Alan
Forum: Road Cycling
10-14-16, 12:08 PM
Replies: 35
Views: 2,516
Posted By RFEngineer

Now that I think about it, that picture is...

Now that I think about it, that picture is actually showing a path here billed as a "Bike Highway." It connects Boulder, CO with several nearby suburbs. Meant for bike commuting. So yeah, this is a...
Forum: Road Cycling
10-14-16, 07:22 AM
Replies: 35
Views: 2,516
Posted By RFEngineer

Here's an example: ...

Here's an example:

http://i767.photobucket.com/albums/xx311/awsimons/MUPs.png

None of those curves are going around anything in particular. My point is, it's not always easy to make these...
Forum: Road Cycling
10-09-16, 09:43 PM
Replies: 35
Views: 2,516
Posted By RFEngineer

A more effective way to slow me down would be to...

A more effective way to slow me down would be to add potholes and cracks to mimic all the local roads. Instead, I get beautifully smooth pavement that I want to go fast on with random "wavy curves"...
Showing results 1 to 50 of 186
 
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