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Old 06-21-2013, 07:25 PM   #1 (permalink)
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Bicycling/hypermiling: a good mix

I`ve been an avid bicyclist for longer than I`ve been an intentional hypermiler, so the energy conservation experience that I gain from pedalling has always helped me when it comes to energy conservation while driving. Recently I got a chuckle when I noticed that I`ve had hypermiling on the mind on long bike rides. It`s really the same thing, isn`t it?

While I`m no engineer, and not much for measuring and documentation (big thanks to your folks with that kind of patience, though), I think the effects of "irrational exhuberance" when pushing the pedals really make a big impresion that isn`t easy to forget- go too hard up a long grade or into a headwind, there`s no mistaking that you`re burning up a lot of fuel!

Lots more lessons: Start and stop half a dozen times in a short distance and you`ll feel it- acceleration is a bear. Since you have to pay to defy gravity, make dang sure you get your rebate on the other side. Sometimes lugging is good, sometimes you really need the RPM. Drafting can be awesome, but it can be dangerous too. Be careful when you do it and don`t get carried away. Tires and pressure are very important. Heavy sucks on the climbs, makes little difference when cruising. Sticky outy stuff hanging off sucks for crusing, matters little for acceleration and climbing.

I already had a good grip on all these points when I started watching gallons rather than carbs. When you read something, or even prove it to yourself with your own data and calculator, you learn a lot, but think the lessons you learn every day or every week by continuous sweating really make their marks in an unforgettable way. I hardily recommend pedlling as a training aid to any serious hypermiler

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Old 06-21-2013, 07:43 PM   #2 (permalink)
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I had just been riding my bike half a mile to and from school, but rode home eight miles from the shop. I will tell you, pulse-and-glide does not work on a bike!
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Old 06-21-2013, 11:45 PM   #3 (permalink)
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A fairing attached to the frame is a great help in getting the most miles/kcal.
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Old 06-22-2013, 03:13 AM   #4 (permalink)
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Quote:
Originally Posted by Grant-53 View Post


A fairing attached to the frame is a great help in getting the most miles/kcal.
I was thinking about that today. Can you share some examples of a fairing for a mountain bike? I have a Gary Fisher with a 21.5" frame.

It was the biggest they had...
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Old 06-22-2013, 06:47 AM   #5 (permalink)
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Haha! Yeah, I think P&G only works for stuff with more weight and better airflow than bicycles. Maybe that`s why I haven`t ever gotten into it! Have never played with fairings either, but I know that a few people do put them on upright bikes (a lot of people put them on recumbents). Since there aren`t any commercial applications for uprights, you`ll have to do a lot of figuring out and adapting in order to mount one. Used fairings are usually available from Angletech. Not many for sale at the moment, but a few- scroll way down to the bottom:
Angle Tech Cycles - Cycle Different - Adaptive Cycling
And remember that it doesn`t necessarilly have to be transparent unless you cover up your view area, so Coroplast might be your ticket.

Grant`s picture isn`t showing up for me .
Maybe it`ll come up on my computer at work.

Last edited by bdesj; 06-22-2013 at 06:52 AM..
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Old 06-22-2013, 07:51 AM   #6 (permalink)
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This just seems weird to me:

Okay, many of those looked weird to me!

I did not see any upright fairings, though.

Zzipper.com has one for $225 and this guy made a tail out of coroplast!

Rear fairing on upright bicycle - YouTube

I think that I am okay riding half a mile each way to school.
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Old 06-23-2013, 01:07 PM   #7 (permalink)
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HI guys.

I've been on pedals for years. Due to a whiplash injury years ago, I had to park typical uprights and seek alternatives. Recumbents looked enticing but were cost prohibiting, so I decided to craft my own - that was 20+ years ago. So far I have a couple of dozen builds under my belt. If anyone is interested, I'll be happy to post pics when I appease the 5 post limit. -kenny-
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Old 06-23-2013, 02:00 PM   #8 (permalink)
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This guy only made a front fairing and it halved the drag of a mountain bike. His tail didn't do help much, maybe because there was too much air separation in between. It's a great read.

http://www.stevebruhn.com/vetter1984LL.htm
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Old 06-23-2013, 03:56 PM   #9 (permalink)
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Sheepdog, that looks interesting, but I fear that my security software may be over zealous--I cannot load it!
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Old 06-23-2013, 04:15 PM   #10 (permalink)
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I'm getting back into biking after a long hiatus. Certainly saves fuel. And I have also noticed an increased attention to drag factors, lubrication, gear selection, and tire inflation. Hahaha!

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