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Out of work goaltender
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So what's the fastest dog you've been chased by? Yesterday I was amazed to have a less than full grown golden retriever pull up next to me at 25. I kind of remember a couple german shepards around 30, but mostly I've been lucky to just be chased by wimpy dogs that have too short of legs to break 27-28.
 

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For me, its mostly been the dogs will rather than breed that gets him up to speed. I've had little rat terriers get up to about 30mph. I've also had a boxer wimp out at about 25. The fastest I have seen a dog get to is a little over 30mph. It was a border collie. He kept up with me for about 1/2 mile. Fast dog!
 

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Animal Speed? Not Surprising.....

A lot of animals can perform better that humans. Take a cat for instance. A cat can jump to a shelf six feet above it (or more). That would be equivalent to you jumping from ground level to the top of a two-story house.

But, what animals don't have is stamina. A cheetah can run 75MPH but it can't sustain that for more than a brief period of time. A human can walk all day long (well, since this is a cycling forum, pedal all day long) at a constant, but slow, speed.

Critters are amazing. Their performance bred into them by thousands of years of running away from other critters with pointy teeth and also just running to eat. Each of those is pretty good motivation for being fast.

Now the trick is to use that to motivate your cycling to get faster. Faster average speed means more time at the donut, beer, pizza, or burger shop at the end of the ride!
 

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I have found that most dogs limit their chasing to their yard, and it takes them a bit to get going. Usually I can get mostly past them before they are reaching speed, then they give up. This doesn't always work, of course. Sometimes I see them lying in the grass, chin on paws, just waiting, and that is when I know I better get on it.
 

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Escort dogs

TylerDurden said:
So what's the fastest dog you've been chased by? Yesterday I was amazed to have a less than full grown golden retriever pull up next to me at 25. I kind of remember a couple german shepards around 30, but mostly I've been lucky to just be chased by wimpy dogs that have too short of legs to break 27-28.
The previous dog thread gave me the term "escort dogs" who run along side but aren't really chasing. We used to pass a greyhound on one of our routes, and he would catch and pass us like we were standing still. Just out for a run :)
 

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Don't know max, but I've seen four miles at 18-20mph

Twenty-five doesn't seem impossible--racing greyhounds top 40 pretty routinely, and one Web site I found says they can hit 45.
I've never clocked a chasing dog, but when a friend and I used to take our dogs on mountain bike rides (our neighborhood was really woodsy then), they could both stay with us coming down a local mountain as fast as we could ride on the fire trails. One loop has four miles of just barely downhill, which we did in 12-14 minutes. The dogs would lope along ahead of us and stop at the bottom, not seriously winded. And they KILLED us on the climbs....
 

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Just to add a little something different to this thread, where I ride there are a few cyotes. Basically they can be loping down the trail, ignoring the bikes going by, or they can be seen crossing the trail, having watched for a good gap. Amazing to live in a city, and see such wildlife along a riparian way along the river.
 

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Dogs are a great workout

Every Spring this goldish brown mut chases me. He just loves to bite my rear tire. (Two flats are his score) Yesterday I was on my new TT bike and he didn't stand a chance. After two years of training he couldn't chase me down.:D
 

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Last weekend I was on a ride with a small group. A friendly Yellow Lab (mixed) followed us from a rest stop and obviously wanted to race. He ran in the ditch next to our lead rider for 6 miles, never barked once. Uphill into a wind I paced him at 23 mph for nearly a mile, then let someone else take him on. I don't know what his top speed could be, probably more than mine. He never came out into the road, just wanted to race. Six miles nearly flat out seems like a long run for a dog.

Al
 
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Dobbies, don't know what their top speed is, but I've never been chase by anything with a faster sprint or tenacity (got my foot, fortunately my riding buddy kicked it in the head).
 

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Interesting that you should ask.... Tonight I had a sheepdog that wanted to race. He held pace at about 35-ish (a bit of a down-hill but when the hill really started to drop off, I started to pull away at about 38. He only wanted to race and got a bit of a head start when he saw me headed his way, but I was still impressed by his mid-thirty top end!!!!
 

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ColoradoVeloDude said:
A lot of animals can perform better that humans. Take a cat for instance. A cat can jump to a shelf six feet above it (or more). That would be equivalent to you jumping from ground level to the top of a two-story house.

But, what animals don't have is stamina. A cheetah can run 75MPH but it can't sustain that for more than a brief period of time. A human can walk all day long (well, since this is a cycling forum, pedal all day long) at a constant, but slow, speed.

Critters are amazing. Their performance bred into them by thousands of years of running away from other critters with pointy teeth and also just running to eat. Each of those is pretty good motivation for being fast.

Now the trick is to use that to motivate your cycling to get faster. Faster average speed means more time at the donut, beer, pizza, or burger shop at the end of the ride!
You are correct about cats. They rely on fast twitch muscles exclusively. Dogs on the other hand have quite good stamina (according to Discovery Channel). I watched a special on african hyenas and their hunting habits. They work amazingly well together and can chase an impala for six hours until the impala collapses from exasperation. Of course, the dogs then eat it while its still squirming!
Ever watch a dog race or greyhound run. They are at a full sprint for several minutes, and sometimes keep going after the finish line. I can't do an all out sprint for more than 30-45 secs.
Another example is the Iditarod (sp?). Those dogs run for days pulling a sled through snow, slush, and miserable conditions. Thats major endurance.
 

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TylerDurden said:
So what's the fastest dog you've been chased by? Yesterday I was amazed to have a less than full grown golden retriever pull up next to me at 25. I kind of remember a couple german shepards around 30, but mostly I've been lucky to just be chased by wimpy dogs that have too short of legs to break 27-28.
According to the physics factbook, "At a typical top speed of 18.77 m/s [42 miles per hour], the greyhound is not only the fastest dog but second only to the Cheetah as the world's fastest animal."
 

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Seems as though the topic of top speed has been vetted quite well, but how about sharing certain experiences with dog deceleration. I routinely pass a big ranch style house in a residential neighborhood during the early warm up period of my standard ride. Frequently as I would pass this house I'd hear a big thud. Finally figured out that one of those big classic barrell-shaped bulldogs lived there, and would run through the house to a big sliding glass door where I guess he thought he could get out after me. Don't think he could get it up past 10 mph but he was darn sure bringing the woodshed once he got there. Amazes me that he has yet to learn the lesson. Similar experience with a house that keeps a dog on a long leash tied to a metal stake. Just a mutt, kinda cute, and pretty quick. I estimate he can get to about 15-20 mph. Opposite the bulldog, he's learned to start curving his track so that he doesn't execute a whiplash triple-lindy but even this joker miscalculates sometimes and goes tetherball! I'm a dog guy and wish no harm to any of them, but I must admit I get the giggles every time I see either one of these two jokers.
 

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grampy bone said:
You are correct about cats. They rely on fast twitch muscles exclusively. Dogs on the other hand have quite good stamina (according to Discovery Channel). I watched a special on african hyenas and their hunting habits. They work amazingly well together and can chase an impala for six hours until the impala collapses from exasperation. Of course, the dogs then eat it while its still squirming!
Ever watch a dog race or greyhound run. They are at a full sprint for several minutes, and sometimes keep going after the finish line. I can't do an all out sprint for more than 30-45 secs.
Another example is the Iditarod (sp?). Those dogs run for days pulling a sled through snow, slush, and miserable conditions. Thats major endurance.
ever seen greyhounds hunt a rabbit?

it's one of the neatest things i've ever seen. there were 4 greyhounds next to a house. one started chasing a rabbit. ran the rabbit around 100 yards around in a circle. as it came back by, they'd switch off like a relay. several more laps and the rabbit quits from exhaustion and the greyhounds pounced. they were just playing with this one.. but it was pretty impressive how instinctual it was for them.
 

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Fredke said:
According to the physics factbook, "At a typical top speed of 18.77 m/s [42 miles per hour], the greyhound is not only the fastest dog but second only to the Cheetah as the world's fastest animal."
Lucky for us, Greyhounds aren't typically aggressive or particularly territorial. My wife and I have two of them and while they'll chase any small animal that dares to move within it's sight, our greys would swim across the Atlantic before chasing anything large. They're afraid of most things that other dog owners take for granted...stairs, balls, toys and our big one even run's away from bumble bees.

Back on topic, my good friend had a dobie, Guinness, who outran me down a MTB trail in Baltimore...I was doing about 25.
 

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grampy bone said:
Dogs on the other hand have quite good stamina (according to Discovery Channel). I watched a special on african hyenas and their hunting habits. They work amazingly well together and can chase an impala for six hours until the impala collapses from exasperation. Of course, the dogs then eat it while its still squirming!
Another little-known factoid: Hyenas aren't dogs -- they're actually more closely related to cats.

They're the Hyaenidae family in suborder Feliformia. Dogs are in the suborder Caniformia, along with some other unexpected animals, like walruses and raccoons -- so they're closer to walruses than hyenas. Weird.
http://en.wikipedia.org/wiki/Carnivora
 
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