| Author | Message | ||
     Hybridmomentspass |
I've seen pictures of this sort of thing before, but I am watching the "Ultimate Factories" on Nat Geo, the episode where they build the VRods. Its the end of it and there is a rolling test they are doing on a dyno, the bike isnt strapped down, and both front and rear wheel are turning - How does the bike stay upright during this? It showed the front of the bike and it was sliding right and left, seems quite intimidating to be honest But yeah, how is this possible? How does the bike stay upright with no feet on the ground, no straps keeping it secure or anything | ||
| Fireboltwillie |
if both wheels are spinning, the bike will stay upright. cyclists (think spandex,not leather) have used rollers for years for off season training. front and rear rollers are tied together with some sort of belt. i guess it's the gyroscopic effect of the wheels. | ||
| 86129squids |
Gyroscopic effect... | ||
| Etennuly |
I have seen many videos of Buells on their last station in the factory being "ridden" by an elf as it made it's way to a crate. As a matter of fact, I have seen this in person at the Homecoming tours. Gyro effect. | ||
| Hybridmomentspass |
thanks guys. I really didnt understand how it was possible, and I still dont want to try it myself  But thanks for the educated answers and lack of BS | ||
| Court |
http://www.euclideanspace.com/maths/geometry/rotat ions/euler/ We had . . . early on . . some fun as the "learning curve" evolved. I am searching for the photos (1313 likely has some) but the FIRST Rolls Test Station had a large foam mat at the end. . . . and for a good reason. (Message edited by court on July 03, 2011) | ||
| Froggy |
Sounds like it would be a good mythbusters episode, like the "can a plane take off on a treadmill?" | ||
| Court |
By the way . . . if you aren't up on precession and don't want to be bogged down with all that nasty math . . the algebra, calc, vectors and so forth . . . do what I did . . buy one . . play with it and you'll understand. I had to learn about precession in pilot training. I should have paid more attention when I was playing with gyroscopes as a kid. http://gyroscope.com/images/lecture/manual.pdf | ||
| Ourdee |
I used to ride rollers when I thought I wanted to be a bicycle racer. It will teach you how to ride smooth and accurate, or how to land. | ||
| Danger_dave |
Skyhooks. They use skyhooks. | ||
| Pkforbes87 |
As long as the wheels are spinning, the bike wants nothing more than to stay upright and keep moving straight ahead. | ||
| Xdigitalx |
Sounds like it would be a good mythbusters episode, like the "can a plane take off on a treadmill?" For a good comparison, would't you need a wind tunnel? Or it's like a surfer on one of those man made wave pool things. | ||
| Danger_dave |
'Are you all right?' | ||
| Ourdee |
Yep, just skippy!%$#@ | ||
| U4euh |
Thats why if you get into a tank slapper, best to let go for a second and let the bike sort it out. Gyroscopically spinning mass wants to stay in motion in the same line. It's not the wind thats holing the bike up, it's a combination of the rider acting as a lever on the Gyroscopes(wheels) to keep them going in the direction he wants, and the wheels wanting to maintain the direction | ||
| Ratbuell |
How does the bike stay upright with no feet on the ground, no straps keeping it secure or anything The same way it does when you're riding it down the road. The only difference between real world riding and the drum test is, in the real world the BIKE has forward motion; in the drum test, the DRUMS have the movement. The bike doesn't know the difference. It is fun to watch. I've seen it in person at both York and East Troy. | ||
| Pammy |
I fell off the dyno on a bike once. That was many years ago...I remember it nearly every morning when I get outta bed. | ||
| Blake |
It's not gyroscopic effect. It's just plain simple steering to keep the bike upright. The front and rear rollers act just like the road surface moving beneath the bike under forward motion. | ||
| Pammy |
The front roller keeps the bike from "squatting" under acceleration....I learned that from experience (my earlier post). | ||
| Crackhead |
Roller trainers for MTB riders | ||
| Hybridmomentspass |
I appreciate the comments and assistance, thanks for clarification by all |
