On Wed, 23 Oct 2019 15:48:20 -0700 (PDT), Tom Kunich
wrote:

On Wednesday, October 23, 2019 at 3:12:58 PM UTC-7, Andre Jute wrote:
On Wednesday, October 23, 2019 at 1:36:22 PM UTC+1, AMuzi wrote:
https://cyclingindustry.news/shimano...tem-for-bikes/


--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971

I'm familiar with various forms of ABS, from the crude version taken off Boeing passenger jets for the Jensen Interceptor FF* (Formula Ferguson four wheel drive, developed for grand prix cars) which took the better part of a second to respond, to the modern versions. But I've commented before that a really pleasing ABS effect came with a Gazelle Toulouse c2004 (the black crow sleeper -- http://coolmainpress.com/BICYCLINGgazelletoulouse.html -- before the Toulouse went all trendy) which had a disc brake at the front and a limp early model -41 Shimano roller brake at the back which almost automatically stopped the rear overtaking the front on wet downhills, so, while you had to be careful with the on-off nature of the wretched Shimano front disc, you just slammed the rear brake lever to the stops and held it there to stabilise the bike. I actually considered fitting an older, limper roller brake on my Trek Smover in the place of the Shimano IM70 roller --
http://coolmainpress.com/BICYCLINGsmover.html -- which I found too sharp for a rear brake even on a sporting bike, though on the front it was superior to a disc.


Errr. TOM! The Jensen Interceptor FF used the Dunlop's Maxaret the
first anti-lock braking system (ABS) to be widely used. Introduced in
the early 1950s,
https://en.wikipedia.org/wiki/Jensen_FF

"The Jensen FF is a four-wheel drive grand tourer produced by British
car manufacturer Jensen Motors between 1966 and 1971. It was the first
non all-terrain production car equipped with four-wheel drive and an
anti-lock braking system.

The use of four-wheel drive in a passenger car preceded the successful
AMC Eagle by thirteen years and the Audi Quattro by fourteen years,
and the Subaru Leone by five years. The Dunlop Maxaret mechanical
anti-lock braking system had previously been used only on aircraft,
lorries, and racing cars.

As a comment, it might have been a "crude version" but the earliest
versions of the Maxaret system reduced stopping distances by a third.

Tom, do try to get it right next time.
--
cheers,

John B.