Comments on: Reverse Rotating Brake Rotors 3

By: Jon

Jon — Thu, 26 Feb 2009 03:03:46 +0000

The name of the company that Neil is thinking of is Beringer Brakes, http://www.Beringer.fr

By: Neil

Neil — Thu, 10 Aug 2006 17:37:51 +0000

I don’t like this at all. As JP notes, it’s a great project to do for a thesis or similar but real world application is unlikely.
Maybe someone else will remember this too – some years ago a company, whose name I can’t remember, released a retrofit kit which used compound brakes. This uses multiple rotors of smaller diameter to reduce the gyroscopic effects. The designers originally worked on aircraft braking systems, where this type of system is apparently very common.
Does anyone know if the company is still around? Has anyone tried the product?

By: Matt Fisher

Matt Fisher — Sun, 06 Aug 2006 20:40:08 +0000

I could see this having a market in the cruiser/performance cruiser market.

The additional unsprung weight would be of little consequence on a 500-700lb machine, yet the additional braking leverage and lighter steering would be noticeable on such bikes. Then there’s the cool factor- the looks one could get while out on cruise night at very low speeds; kinda like the spinner wheels that are so popular with the “bling-bling” crowd.

From a pure performance perspective though, I’m betting the cons outweigh the pros.

By: JP

JP — Sat, 05 Aug 2006 18:24:17 +0000

It’s certainly a noteworthy engineering exercise, but I have to side with CJ above in wondering if the additional complexity and unsprung weight are worth the benefits. Also Gordy brings up a very worthwhile concern regarding lubrication. Let’s see some more of these in use, and get some hard data on durability and performance before jumping into getting them adopted by a major manufacturer.

By: Gordy

Gordy — Fri, 04 Aug 2006 18:44:51 +0000

If it was to be endurance tested it would surely require a lube system for the cogs? I would be concerned about component failure: something within the cog system jamming or failing while the motorcycle is at speed.

I will be surprised if any mass manufacturer bites the bullet. It would only make sense if the disadvantages opened up other areas where big gains could be made, and I just can not see it. The manufacturers have worked hard to reach the current level of high speed stability, and I do not think that they will want to add the mass, cost and complexity.

Nice idea, but I think it’s a solution without a problem!