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Old 10th January 2009, 20:18   #16
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Quote:
Originally Posted by manson View Post
Also, using the rear brake is a commonly used technique to get out of a tank slapper, if the front brake is hooked on to the same lever, the motorcycle would most definitely skid.manson.
whats a tank slapper ?

Last edited by Technocrat : 12th January 2009 at 11:52. Reason: fixed quote
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Old 10th January 2009, 20:32   #17
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The Blackbird was the first bike to have such a system. It was called Dual CBS (Combined Brake System).
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Old 11th January 2009, 10:21   #18
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Quote:
Originally Posted by slipstream View Post
whats a tank slapper ?
That:

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Old 11th January 2009, 14:40   #19
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Didn't get that... I mean cant make out what exactly is happening. What causes this to happen (tank slapping)??
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Old 11th January 2009, 16:17   #20
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Honda is calling it Combined Braking System. Here is a link Honda Worldwide | Technology Close-up
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Old 11th January 2009, 22:04   #21
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good engineering but if the delay valve malfunctions at any point during turnings its done.
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Old 12th January 2009, 20:07   #22
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Most Indians bikers use the front brake only to stop the bike from rolling in signals.

I am not an expert but I think it is not easy to implement a combined braking system in our conditions where there is tar / cement / mud roads plus mud & sand on roads.

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Old 12th January 2009, 20:14   #23
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Quote:
Most Indians bikers use the front brake only to stop the bike from rolling in signals.
Correction Most Indian bikers still use rear brake more than front
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Old 12th January 2009, 22:22   #24
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Quote:
Originally Posted by Technocrat View Post
Correction Most Indian bikers still use rear brake more than front
Thats what I also said, most indians do not use front brake at all. Are you saying, they use rear brake only even in signals?
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Old 12th January 2009, 22:34   #25
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oops Yes I just re-read your post & you and I are saying same thing
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Old 14th January 2009, 14:14   #26
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Folks ! Just to reiterate my point....

Dont u think a very simple dual braking system (lever based and not too high tech) would make sense on our INDIAN scooters ? Typically like on an Activa or a Dio. We're not talking high speeds here and these vehicles are not stunter's favourites as well (though I still know that some people do).

The idea is to combine convenience with safety. Just depress one lever for an effective stop.

I'm keen to know if someone had tried this on a bicycle....If it works on a bicycle, then an upgraded version should work on a scooter/bike as well
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Old 15th January 2009, 18:56   #27
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Quote:
Originally Posted by Raccoon View Post
Didn't get that... I mean cant make out what exactly is happening. What causes this to happen (tank slapping)??
From Wikipedia:

Wobble or shimmy

Wobble, shimmy, tank-slapper, speed wobble, and death wobble are all words and phrases used to describe a rapid (4Ė10 Hz) oscillation of primarily just the front end (front wheel, fork, and handlebars). The rest of the bike remains essentially unaffected. This instability occurs mostly at high speed and is similar to that experienced by shopping cart wheels, airplane landing gear, and automobile front wheels. While wobble or shimmy can be easily remedied by adjusting speed, position, or grip on the handlebar, it can be fatal if left uncontrolled.
Wobble or shimmy begins when some otherwise minor irregularity, such as fork asymmetry , accelerates the wheel to one side. The restoring force is applied in phase with the progress of the irregularity, and the wheel turns to the other side where the process is repeated. If there is insufficient damping in the steering the oscillation will increase until system failure occurs. The oscillation frequency can be changed by changing the forward speed, making the bike stiffer or lighter, or increasing the stiffness of the steering, of which the rider is a main component.
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