Clydesdales/Athenas (200+ lb / 91+ kg) - Going Downhill--FAST

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jesspal
08-17-09, 05:51 PM
Pfft! Work hard going up, then who cares about your downhill speed!:D...

:thumb:


Homeyba
08-17-09, 06:34 PM
Man, I go out for a bike ride and look what happens! :speedy:


Sorry, that's BS. Check your units. 71.4 km/h maybe

You want to call BS, that's ok with me. No skin off my nose. This is the internet and you don't know who I am. There are a few people here who do though, Beanz included. I'm pretty sure they know me well enough to know that I don't throw anything out there that I'm not willing to back up (If my fat butt isn't out of shape :)). He's what I'll do. I've got an open invitation for you to sit on the back of my tandem We'll go down a hill of my choosing. If we don't hit 70+mph (that's miles not kilometers) I'll buy you dinner. I run a 60-11 gear on my tandem so we'll be pedaling at 51mph +/-. You up for that?

Barrettscv
08-17-09, 06:39 PM
Man, I go out for a bike ride and look what happens! :speedy:



You want to call BS, that's ok with me. No skin off my nose. This is the internet and you don't know who I am. There are a few people here who do though, Beanz included. I'm pretty sure they know me well enough to know that I don't throw anything out there that I'm not willing to back up (If my fat butt isn't out of shape :)). He's what I'll do. I've got an open invitation for you to sit on the back of my tandem We'll go down a hill of my choosing. If we don't hit 70+mph (that's miles not kilometers) I'll buy you dinner. I run a 60-11 gear on my tandem so we'll be pedaling at 51mph +/-. You up for that?

That's cheating ;)


Homeyba
08-17-09, 06:44 PM
Also bear in mnd the UMCA cyclists are generall down on aerobars, as well and very aerodynamic. I crewed RAAM for Rob Lucas and he topped 70 dropping down into Monument Valley, for example, and also topped 70 dropping down Wolf Creek Pass in Colorado. I was driving the chase vehicle in both instances.
You sure that wasn't the descent after Monument Valley, heading into Mexican Hat? That's where I was over 70mph? I know of several other racers who were in that speed range on that descent.

When I went down Wolf Creek it was dark and there was melting snow that I wasn't sure had turned into ice or not so I didn't get much over the mid 60's on that descent.

Mr. Beanz
08-17-09, 06:46 PM
There are a few people here who do though, Beanz included.

Beanz ?! Beanz is full of hot air!:roflmao2:

Homeyba
08-17-09, 06:47 PM
That's cheating ;)


He said weight doesn't matter so why is that cheating? ;) If he doesn't want to ride on the tandem with me he can crew for me on the Furnace Creek 508 or RAAM next year and watch from the follow vehicle.

Sir-Loin
08-17-09, 06:47 PM
Man, I go out for a bike ride and look what happens! :speedy:



You want to call BS, that's ok with me. No skin off my nose. This is the internet and you don't know who I am. There are a few people here who do though, Beanz included. I'm pretty sure they know me well enough to know that I don't throw anything out there that I'm not willing to back up (If my fat butt isn't out of shape :)). He's what I'll do. I've got an open invitation for you to sit on the back of my tandem We'll go down a hill of my choosing. If we don't hit 70+mph (that's miles not kilometers) I'll buy you dinner. I run a 60-11 gear on my tandem so we'll be pedaling at 51mph +/-. You up for that?

I am game, I will buy dinner to go 70+ on a tandem! :thumb:

Homeyba
08-17-09, 07:04 PM
By the way, as you get more confident, you'll start dropping hills faster. eventually, you'll hit a "Death Wobble". It's a torsional vibration from harmonic frequency differences between the balancing of the front and rear wheel. It's scary as hell, but easy to fix. Just tuck a knee into the top tube and don't stiffen or tighten the upper body. It'll stabilize. My Allez has a death wobble right around 45-48 MPH, and then it stabilizes.

I'd say something is not right with your bike. You might want to check the steering head and make sure it's tight then maybe a higher quality set of wheels. My son's Allez does not do that and my current bike has never done that. I ride on very well built, high end wheels. My old Peugeot did that after I crashed it because the rear part of the frame was slightly bent. Sounds like it might be worth checking into...

Homeyba
08-17-09, 07:09 PM
Beanz ?! Beanz is full of hot air!:roflmao2:

Hey Beanz, you can't fool me. I know you enjoy a good descent. :thumb:

Homeyba
08-17-09, 07:12 PM
I am game, I will buy dinner to go 70+ on a tandem! :thumb:


You're going to have to come out here to Ca. There aren't any hills in Ok... :)

Mr. Beanz
08-17-09, 07:17 PM
This is the internet and you don't know who I am. There are a few people here who do though, Beanz included.

OK! OK! Yeah Homey don't play that! He's been around for a long time doing some serious rides. I believe 71 is easily doable. He's got high end race stuff that is more than capable.

Gina and I hit 56 mph on a one mile downhill on our tandem without pedaling!:eek: We have a roadie tndem (Burley Duet) rock solid at 56. Althought it was to fast for me considering I had my wife on the back, Homey's stuff could easily hit 71 while equipped with high end race wheels and aerodynamic equipment. Maybe a little more weight dependng on the stoker. I'm sure the hill Homey rode was a much longer and steeper grade that on which we easily hit 56 without trying.:thumb:

He does do the big rides that are monitored online, step by step, and stage by stage!;)


Now you tell them I'm not really a "big sissy" like Ronsmithjr thought I was!:roflmao2:

Homeyba
08-17-09, 07:30 PM
...Now you tell them I'm not really a "big sissy" like Ronsmithjr thought I was!:roflmao2:

Did Ronsmithjr say that? I'm shocked. You know I got your back. I know how to take care of him! :fred: That's right, I know karate and ten other Japanese words. :D

Mr. Beanz
08-17-09, 07:38 PM
Did Ronsmithjr say that? I'm shocked. You know I got your back. I know how to take care of him! :fred: That's right, I know karate and ten other Japanese words. :D

He maybe 6'7 but I can take him down! Even if I have to start at his ankles!:p

Actually what he said was that before we met on The Bear, he thought I would be a big sissy cause I posted a bunch of cry baby posts saying that I sucked at riding!:roflmao2:

CliftonGK1
08-17-09, 07:38 PM
He said weight doesn't matter so why is that cheating? ;) If he doesn't want to ride on the tandem with me he can crew for me on the Furnace Creek 508 or RAAM next year and watch from the follow vehicle.

What's your totem for FC508?

A few of the gang from the Seattle Randos race the 508. I've seen these guys take off from the start of our brevets. Sweet holy speed-demons! There was a group that finished the spring 300k in 10h 34m.

Tom Stormcrowe
08-17-09, 07:44 PM
You sure that wasn't the descent after Monument Valley, heading into Mexican Hat? That's where I was over 70mph? I know of several other racers who were in that speed range on that descent.

When I went down Wolf Creek it was dark and there was melting snow that I wasn't sure had turned into ice or not so I didn't get much over the mid 60's on that descent.

That would have been about right, now that I think about it. It's been a few years.

Homeyba
08-17-09, 07:50 PM
What's your totem for FC508?

A few of the gang from the Seattle Randos race the 508. I've seen these guys take off from the start of our brevets. Sweet holy speed-demons! There was a group that finished the spring 300k in 10h 34m.

My 508 totems? Basenji, Tocan. Golden Drasenji. and Eels. This year will be my 9th 508. That includes setting two course records and braking one of previously set. :)

Who says Clyds are slow...just don't watch me climb!

Homeyba
08-17-09, 08:00 PM
He maybe 6'7 but I can take him down! Even if I have to start at his ankles!:p

Actually what he said was that before we met on The Bear, he thought I would be a big sissy cause I posted a bunch of cry baby posts saying that I sucked at riding!:roflmao2:


Try biting his ankles. :) Actually I was thinking of letting some air out of that rolling couch he's been riding around... ;)

RiverHills
08-17-09, 08:56 PM
This is so simple but I have to ask again: Are you guys in the 70+ club sure you got your computer set to the right units? I'm not insulting your intelligence by asking; after all NASA fudged the units on the Hubble Telescope so it happens to the best of us. I wonder this because in watching the TDF, I frequently heard that the rides were reaching "60-70 kilometers an hour".

And speaking of high speeds, are bikes and their tires rated for a max speed? Assuming unlimited speed is possible, I'm curious at what speed stuff starts to fly apart. Tires blowing, spokes breaking, etc.

Mr. Beanz
08-17-09, 09:08 PM
Try biting his ankles. :) Actually I was thinking of letting some air out of that rolling couch he's been riding around... ;)

Hey, what's up with his friends? I met some of his friends that were willing to bet money that he'd smoke me on the Bear!:eek:

He was there at Cool Breeze too. I don't remember if he did the double metric with us or not? He's a cool guy, I like him!:thumb:

Mr. Beanz
08-17-09, 09:12 PM
This is so simple but I have to ask again: Are you guys in the 70+ club sure you got your computer set to the right units? I'm curious at what speed stuff starts to fly apart. Tires blowing, spokes breaking, etc.

We are talking tandems here!;) Our $2200 tandem is rock solid at 56 mph. It has 48 spokes and HUGE hub flanges compared to a regular roadie. The bike was super steady but our glasses and helmets were shake rattle and a rollin'!:eek: I was more afraid of my helmet evaporating than I was about the wheels.:D

And Homey's tandem is a little more expensive than mine, $10 maybe?:p

Thank goodness our hill was only one mile long. Although I was not scared at the time, I still get nightmarish flashes of what might have happened to my wife if something had gone wrong! A dog, a squirrel etc :eek:....I won't do it again!;)

BTW, I have read articles in Bicycling mag about velodrome racers reaching speed of 60 mph on tandems. I don't think they would lie and that's on a track with no downhill. One crashed and the rider was in a coma. Not for me!

CliftonGK1
08-17-09, 09:17 PM
This is so simple but I have to ask again: Are you guys in the 70+ club sure you got your computer set to the right units?

http://photos-g.ak.fbcdn.net/photos-ak-snc1/v344/141/86/519101763/n519101763_829454_7.jpg

That's mph, not kph. Calibrated by an average of 3 measured rollouts with my full weight on the bike. Doesn't get much more accurate.

54.6mph reached during the Summits of Bothell ride on a 1/2 mile straight downhill stretch with a clean runout at the bottom. I might have been able to go faster, but I chickened out and started tapping the brakes before I reached the bottom. Course record on that hill is supposedly 57mph.

Homeyba
08-17-09, 09:55 PM
This is so simple but I have to ask again: Are you guys in the 70+ club sure you got your computer set to the right units? I'm not insulting your intelligence by asking; after all NASA fudged the units on the Hubble Telescope so it happens to the best of us. I wonder this because in watching the TDF, I frequently heard that the rides were reaching "60-70 kilometers an hour".

And speaking of high speeds, are bikes and their tires rated for a max speed? Assuming unlimited speed is possible, I'm curious at what speed stuff starts to fly apart. Tires blowing, spokes breaking, etc.


Yes, my speedo is correct. The lady driving the follow vehicle thought I was going 75+ on her speedo. Mine only said 71.4. Sorry no picture. I was on my single bike, not the tandem here. As Beanz said, I ride high end nearly new or new equipment. I wouldn't go out there on a 20 year old Huffy 3spd. On the FC508 I once had a guy in a car pull up next to me and the passenger yelled out the window "do you know how fast you're going!!! you're going 65mph!"

My offer is genuine, I'll take you out on the tandem, we'll have some fun and you'll go very, very fast!

wild animals
08-17-09, 09:56 PM
That is no small hill there young lady. If you climbed that, I am quite impressed. I mapped the hill and it looks like about 2 mile with about 900 feet of decent. :twitchy: Parts of it are showing a 19 percent grade, so it is indeed steep and cause you to gain speed quickly.(The mapping site may not be totally correct, but it does give a general idea of what the hill is like) I have a similar hill down here that I ride the brakes on.

On a side note, we are doing a Clyde/ Athena ride down in Albany on September 5th if you would like to join us.:) It will be a 40-50 mile no drop ride, just so you know.


I didn't climb that road--I climbed Mountain View Road (if it has "mountain" in it ... it is a bad idea) like so: http://maps.google.com/maps?f=d&source=s_d&saddr=SW+Old+Portland+Rd&daddr=JP+W+Rd&geocode=FaTvuQIdMAKt-A%3BFbM8ugIdr2ys-A&hl=en&mra=dme&mrcr=0&mrsp=1&sz=15&sll=45.752972,-122.908859&sspn=0.019673,0.038495&ie=UTF8&ll=45.753331,-122.897787&spn=0.039347,0.07699&t=p&z=14 I think it's overall less climbing per mile(?), but there are some really steep parts, and there was one point that I could not force myself to pedal anymore, and I walked for a bit. Other than that, I would pedal for 20 yards, stop, ask myself why I am doing this to myself, and then climb up again. And it was so steep, the gear so low, that it took me about 3 tries to get started again every time. haha. The bike would only go forward a little bit, but my legs had to move really fast. So terrible. And that is why I need to do it more!

Thanks for the invite! That sounds awesome. I haven't ever done 40-50 miles because I have a pretty bad tendon problem, but I did 31 miles the other day and lived. I bet I could do 40--maybe! heh :) Is it a bunch of friends or is there a website or..? Mighty neighborly of you!

LandKurt: I just didn't want to get caught exaggerating, that's all :) I'm not too afraid of heights, but I am afraid of wiping out in front of a school bus or something! So I can relate.

PS: Karate and other Japanese words, ahaha.

Homeyba
08-17-09, 10:01 PM
Hey, what's up with his friends? I met some of his friends that were willing to bet money that he'd smoke me on the Bear!:eek:

He was there at Cool Breeze too. I don't remember if he did the double metric with us or not? He's a cool guy, I like him!:thumb:

He is a very cool guy! He's been riding a lot and is in really good shape. He has gone to the dark side though and rides a recumbent...a sad day indeed.

BTW, Wild Animals, you're welcome to ride the tandem too! You're not too far away up there in Oregon

maddmaxx
08-18-09, 04:16 AM
This is so simple but I have to ask again: Are you guys in the 70+ club sure you got your computer set to the right units? I'm not insulting your intelligence by asking; after all NASA fudged the units on the Hubble Telescope so it happens to the best of us. I wonder this because in watching the TDF, I frequently heard that the rides were reaching "60-70 kilometers an hour".

And speaking of high speeds, are bikes and their tires rated for a max speed? Assuming unlimited speed is possible, I'm curious at what speed stuff starts to fly apart. Tires blowing, spokes breaking, etc.

That would be 60 to 70 KPH on the flats during the ends of the sprint stages!!!!

You might find these articles interesting.

the flying 200-meter world record, which is currently held by Canadian rider Sam Whittingham with a speed of 81 mph flat. That's right, 81 mph on a bike, on flat ground.
http://www.wired.com/culture/lifestyle/news/2007/03/bikerecord_0330

152.2 Miles per Hour speed record at the Bonneville Salt Flats near Wendover, Utah on July 20, 1985.
http://www.canosoarus.com/08LSRbicycle/LSR%20Bike01.htm

Barrettscv
08-18-09, 07:31 AM
That would be 60 to 70 KPH on the flats during the ends of the sprint stages!!!!

You might find these articles interesting.

the flying 200-meter world record, which is currently held by Canadian rider Sam Whittingham with a speed of 81 mph flat. That's right, 81 mph on a bike, on flat ground.
http://www.wired.com/culture/lifestyle/news/2007/03/bikerecord_0330

152.2 Miles per Hour speed record at the Bonneville Salt Flats near Wendover, Utah on July 20, 1985.
http://www.canosoarus.com/08LSRbicycle/LSR%20Bike01.htm

The first is a fully enclosed aero bike.

The second is a cyclist drafting in a pace vehicle was modified by adding a large tail fairing to a Streamliner. The fairing keeps the wind off John and reduces the aerodynamic drag he is pedaling against to near nothing.

maddmaxx
08-18-09, 08:25 AM
The first is a fully enclosed aero bike.

The second is a cyclist drafting in a pace vehicle was modified by adding a large tail fairing to a Streamliner. The fairing keeps the wind off John and reduces the aerodynamic drag he is pedaling against to near nothing.

It was used as an example of how fast one could go without "parts flying off".

RiverHills
08-18-09, 08:32 AM
It was used as an example of how fast one could go without "parts flying off".

Well that is hardly your run of the mill road bike.

CliftonGK1
08-18-09, 09:00 AM
It was used as an example of how fast one could go without "parts flying off".

I did 45.4mph this morning on a frankenbike singlespeed.
- 1988 Trek 400 frame/fork salvaged from a dumpster, original headset (overhauled)
- rolling on 1991 Wolber T410 Alpine hoops, front still original lacing to 105sc hub, rear rebuilt on IRO high flange fix/fix
- 1991 105sc crank, front brake and levers.
- 1988 stock rear brake
- new bits and pieces as necessary; bars, stem, saddle, etc.

No parts flying off of it so far, and I beat this bike like it owes me money. Commuter, path racer, frequently take it off the pavement on packed-lime or hardpack dirt roads, did 5 miles on the equestrian trail with it last week just to see if I could.

I can't imagine a speed one could reach that would cause spontaneous loss of parts; although I did go fast enough once that the adhesive for my helmet mirror gave up and I lost the whole thing.

Pinyon
08-18-09, 10:04 AM
Reading Tom's post about single speeds, I remembered seeing a guy on a single-speed bike without a freewheel mostly use his feet to slow down. Since the pedals move as you go forward no matter what, you can use your legs to slow down.

That is not good enough, sometimes. I've seen guys do this deliberate side-slide move to slow down on single speed while going downhill as well. The guy that I asked, said that if he did not use that technique on that hill, the pedals would overpower him, and he can't keep his feet on the pedals at all. Learning how to DELIBERATELY slide with control like that? Scary-looking move, to me.

RiverHills
08-18-09, 10:18 AM
At any rate, be careful. I rode in this ride and right by the scene of this unfortunate tragedy:

http://articles.lancasteronline.com/local/4/241122

CliftonGK1
08-18-09, 10:24 AM
Reading Tom's post about single speeds, I remembered seeing a guy on a single-speed bike without a freewheel mostly use his feet to slow down. Since the pedals move as you go forward no matter what, you can use your legs to slow down.

That is not good enough, sometimes. I've seen guys do this deliberate side-slide move to slow down on single speed while going downhill as well. The guy that I asked, said that if he did not use that technique on that hill, the pedals would overpower him, and he can't keep his feet on the pedals at all. Learning how to DELIBERATELY slide with control like that? Scary-looking move, to me.




What you're talking about is a fixed gear; a singlespeed has a freewheel. I ride both fixed and single on the hills around here, and while I have the ability on most hills to control my speed via resistance on the fixed cog I prefer to use my brakes because it's less wear & tear on my knees, and I don't like burning through tires twice a month from skidding.
Skidding/skipping to scrub some speed isn't really a scary manouver if it's just to lose a bit a forward momentum. I've had to do it when cars cut me off from a parking lot, or make sudden stops or lane changes and I need to slow down and get out of the way in a hurry. Lock up the back wheel, throw some english on the back-end of the bike and swing it around, unlock the wheel and you're rolling slower in a whole new direction. Not my preferred method, but it has its uses.

Pinyon
08-18-09, 10:28 AM
Yeah, the bikes that I'm talking about are usually mid-80's road bikes set up with a fixed gear. It seems to be pretty popular around here to do your own conversion of an old bike, and to have NO BRAKES AT ALL. I can see that not being such a big deal if you ride really flat areas, or on the track, but riding without brakes to commute in traffic, and to ride on rolling terrain with traffic lights at the bottom of biggish hills seems nuts to me.

cod.peace
08-18-09, 10:43 AM
The first is a fully enclosed aero bike.

To be completely accurate, that 's a fully enclosed recumbent aero bike. :thumb: