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  #1  
Old 03-18-2024, 09:05 AM
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Veloo Veloo is online now
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Join Date: Sep 2013
Location: Toronto
Posts: 4,218
SABS anti-lock brakes

Thought these were some joke post but they popped up on a Facebook classifieds.
The video is pretty funny.

Anyone here actually try these?

http://www.sabs-global.com/product-445.html

https://www.youtube.com/watch?v=Xe-U2E6Cw8w
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  #2  
Old 03-18-2024, 09:35 AM
Mark McM Mark McM is offline
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Join Date: Jun 2006
Posts: 12,028
Don't confuse brake reduces with anti-lock brakes. There have been a number of brake reducers on the market, but to my mind, they create more danger than they solve, by reducing total stopping force available. Due to forward weight shift, the most common wheel to lock up during braking is the rear wheel. But these so-called anti-lock brakes typically only work on the front brake, not the rear.

Another company that makes a brake reducer is Revolo. The Revelo web page has a video showing the type of crash scenario that the product seeks to avoid:

https://www.revelo.ca/blogs/revelo-b...ike-technology

The video shows a rider applying his brakes and going over the handlebars. But the rider didn't go over the handlebars because the brake locked, he went over the handlebars due to poor braking technique. How do we know this? Because if the front brake locks up, then either the front wheel will skid, or the rear wheel will lift off the ground, and neither as a result of applying the front brake. While the video shows that at some point the rear wheel does leave the ground, that didn't happen until the rider's weight is ahead of the front axle and their legs hit the handlebar (i.e. it was the rider that cause the bike to go end-over-end, not the brakes). If the rider had simply brace with their arms when applying the brakes, there would have been no crash.

Essentially what these brake reducers do is to reduce the amount of total stopping power available, not detecting/preventing wheel lock-up.

Last edited by Mark McM; 03-18-2024 at 09:37 AM.
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  #3  
Old 03-18-2024, 10:23 AM
benb benb is offline
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Join Date: Apr 2007
Location: Eastern MA
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Wow blast from the past.

I remember taking other versions of this off bikes.

The ones I remember were some kind of inline thing in the cable/housing that kept you from applying maximum force to the front brake.

Right up there with "had to lay 'er down to avoid the crash" level thinking. If you don't know that one basically all properly functioning braking systems when applied appropriately slow you down faster than dumping a bike and letting the friction between your skin and the pavement slow you down. More commonly misunderstood with old dudes on motorcycles IME. Anybody who dumped a bike and came to a stop on the ground without hitting whatever was in their way could have stopped without crashing.
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  #4  
Old 03-18-2024, 10:28 AM
Nomadmax Nomadmax is offline
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There's a good reason why they're for sale.
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