Only 30 bucks.
Might be fun to play with.
What do you guys think?
http://www.hotwheels.com/coolstuff/radargun.aspx
Might be fun to play with.
What do you guys think?
http://www.hotwheels.com/coolstuff/radargun.aspx
Radar gun for DH?
- Thread starter DVNT
- Start date
cycling computers cost that much. and have way more functionality.
i think it probably has a range of about 5 feet.
prolly a waste of $. buy one of those lil breathalizers instead.. much more fun
We just asked our local Sheriff and he gleefully accepted to come out and "shoot" the racers. Top speed of the day won a new Boxxer WC. Pretty good day!
That's awesome - good way to raise interest in dhing and make it a more spectator friendly sport.THRILLSEEKA said:
What was the top speed?
it is nearly IMPOSSIBLE to pick up a bike with a real radar. not enough metal for the beam to bounce off of.
trust me, i've tried..... A LOT
trust me, i've tried..... A LOT
lolmanimal said:
They(race promotors) had a speed trap on the Kamakazi course at Mammoth Mtn for the Finals in 2000.
You went RIGHT BY them....I don't think we got to know how fast we were going
It would have been fun to know.
So if that's the case, how do radar guns manage to pick up a baseball going 90+mph?manimal said:
manimal said:
I always ride past speed moniters around my area and they clock me... isn't that the same thing as a radar gun? Just built into a big box on the side of a street?
best way is just a GPS. i rode w/ a guy who hit 47.2mph at plattekill, tracked w/ a gps, going down some killer loose rock trail down a ski run. plus theres nothing much more accurate than GPS, other than maybe radar
jcook90 said:
It seems like GPS could potentially give false readings, I don't know for sure how they work but I would guess they map speed as if the earth were flat. If you jumped off a cliff would the GPS say your speed is zero because you are falling straight down or would it actually measure your speed? If you are ridding down a steep hill it seems like the GPS could estimate your speed significantly slower than it actually is. What's wrong with a cycle computer, that's about as accurate as you can get.
Actually, civillian GPS is NOT very acurate. And computers are a friggin joke. Everytime you lift your front wheel it accelerates, therfore throwing off your time.
And whoever said radar guns don't pick up a bike???? WTF??? Try not to forget the 160 pound average rider ON the bike? I've gotten TWO speeding tickets on a bike. And the baseball comparo was right on. Nice job.
Sbabuser: Top speed was 44 on a grapefruit sized boulder field. Wasn't too shabby at all. Considering everyone was too scared to try and pedal as rims and tires were constantly being demolished on the run down and if you dared change your balance you lost your footing. Clips were the shizznit that day! too bad i don't run 'em!
And whoever said radar guns don't pick up a bike???? WTF??? Try not to forget the 160 pound average rider ON the bike? I've gotten TWO speeding tickets on a bike. And the baseball comparo was right on. Nice job.
Sbabuser: Top speed was 44 on a grapefruit sized boulder field. Wasn't too shabby at all. Considering everyone was too scared to try and pedal as rims and tires were constantly being demolished on the run down and if you dared change your balance you lost your footing. Clips were the shizznit that day! too bad i don't run 'em!
i did. typical police radar will only pick up a small signature of a bicycle, barely enough to lock in. if you've ever run one, it is based off of the dopler principle and it has a speaker so you can hear the tone. a small car has a weak signature even if there are no other cars around and a bike will come and go. i've had coworkers try to pick me up on it when i was doing well over 30 down a hill and they couldn't get a lock on me and i've never been able to pick up riders myself. i usually can't even pick up a moped unless it is the ONLY thing moving in the area.THRILLSEEKA said:
baseball radars are not the same thing as police speed detection radars.
i think something isnt quite right with that impression.THRILLSEEKA said:
unless you lift your front wheel by swiftly moving your mass center back while pushing the bike forward, at the same time you raise the front wheel.
and even then, i wonder what the magnitude of radial force exerted on the wheel would be and how much energy you´d be actually converting into the wheel´s I.
Unless you manual the entire course a computer will be very accurate, How much could the wheel actually accelerate/decelerate in the few moments its off the ground? If you're really concerned about it put the sensor on your rear wheel, it spends more time on the ground. Oh wait, if you skid alot your speed will be zero, so I guess that wouldn't work either. LOLALEXIS_DH said:
There was a radar speed trap set up at Snowmass. It was one of those you see along side of the road that tells you your speed. It picked up every rider I saw come down.
That's funny, drunk friends of mine entertained themselves by running past a speed monitor on the side of the road. It was parked outside their house for awhile. I don't see how putting a bike underneath somebody makes them invisible.
44 is pretty good - I think the highest we found by speedometer at Snowmass was ~40mph.
And anyone who thinks gps is accurate needs to take a few classes. Civilian gps does not use enough satelites to accurately locate position within 3 meters.
Speedometer would be my 2nd choice for accurate speed measurement behind radar. It would read a little slow, if anything, as the wheel would decellerate whenever it was lifted off the ground, wouldn't it?
44 is pretty good - I think the highest we found by speedometer at Snowmass was ~40mph.
And anyone who thinks gps is accurate needs to take a few classes. Civilian gps does not use enough satelites to accurately locate position within 3 meters.
Speedometer would be my 2nd choice for accurate speed measurement behind radar. It would read a little slow, if anything, as the wheel would decellerate whenever it was lifted off the ground, wouldn't it?
lol, the other day i was at the djs, and there was this big double some guy was mussing to gap, and i heard the big shot of the djs on velocity and conservation of energy.Kornphlake said:
"dont worry, you dont need much speed... as soon as you get off the land you´ll pick up a crapload of speed while airborne".
i wish i had stayed to see that guy try.
We got that "impression" by running a course 4 times. Two of them I hit every booter and gap and two ladder drops. The other two I bypassed all the airborne obstacles. Due to the way they had the runouts for the gaps, bypassing was much faster, yet the comp showed that apparently hit 54mph on the airborne runs. 54 off a 15' double or a 5' ladder drop? Maybe that guy at the DJs and his "crapload of speed" is onto something? lol...ALEXIS_DH said:
And for the radar guns not working? I GOT TWO TICKETS. Two different guns, two different cops in two different little small towns in South Freakin Dakota. So I highly doubt that we have the new Super Duper Radarnator 2000s yet. And the Sherriff was pretty confident in his times as well. Enough so that they waged a new WC on it.
It doesn't really matter and it's not worth an always enjoyable Interfight. But who knows, maybe your town's cops just need to clean the donut glaze off the guns. My town's cops eat first, THEN play cops and robbers.
They had a speed trap at the snowmass nationals, like the ones you see on the side of the road, I couldnt believe how far it was tracking people, it was pretty cool