Posted by K Viltersten on May 10, 2008, 6:07 pm
Is it only me or is there a physical
explaination for the feeling i
experience that braking with my foot
makes the bike less stable than when
braking with the hand.
--
Regards
Konrad Viltersten
--------------------------------
sleep - a substitute for coffee for the poor
ambition - lack of sense to be lazy
Posted by Beauregard T. Shagnasty on May 10, 2008, 6:36 pm
K Viltersten wrote:
> Is it only me or is there a physical explaination for the feeling i
> experience that braking with my foot makes the bike less stable than
> when braking with the hand.
Use both. The front for stopping power, the rear for stability.
Read a riders manual.
--
-bts
-Friends don't let friends drive Windows
Posted by =?ISO-8859-1?Q?Claude_Hopper_= on May 18, 2008, 4:59 pm
Beauregard T. Shagnasty wrote:
> K Viltersten wrote:
>
>> Is it only me or is there a physical explaination for the feeling i
>> experience that braking with my foot makes the bike less stable than
>> when braking with the hand.
>
> Use both. The front for stopping power, the rear for stability.
>
> Read a riders manual.
>
I too use both unless i'm turning in sand, then not so much on the
front. Sometimes I only use the front to assist engine braking on long
down grades.
--
Claude Hopper :)
? ? ¥
Posted by Who Me? on May 10, 2008, 7:52 pm
> Is it only me or is there a physical
> explaination for the feeling i experience that braking with my foot
> makes the bike less stable than when
> braking with the hand.
Unless we're talking REALLY hard braking..............
then it's just you. ;-)
P.S. Got enough air in the rear and axle not loose ??
IOW, if you get that feeling with light braking, it could be an indication
of a mechanical malfunction.
But more likely it's an indication of rider malfunction!
Posted by ~ on May 10, 2008, 11:04 pm
> Is it only me or is there a physical
> explaination for the feeling i
> experience that braking with my foot
> makes the bike less stable than when
> braking with the hand.
The rear tire contact patch is doing "double duty" as you try to stop,
using the rear brake only.
The brakes are slowing the wheel down, but so is compression braking
from the engine, assuming that you have closed the throttle.
The total weight of you and the motorcycle is being transferred to the
front tire, and the rear tire contact patch has less grip because
there is less weight on it.
The tire contact patch doesn't work according to the classic
coefficient of friction model you studied in high school or college.
That applies to the perpendicular force per unit area of the contact
patch against the road surface.
No, the rear tire contact patch is also being deformed by the surface
roughness of the paving material, which digs into the rubber.
If you are braking by using the rear brake only, this meshing or
interlocking effect of rubber and pavement is reduced.
If you transfer enough weight to the front tire while braking with the
rear brake only, the rear wheel will try to pass the front wheel,
because there is *still* more weight on the rear tire contact patch
than there is on the front tire.
So rear wheel only braking feels very unstable.
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> experience that braking with my foot makes the bike less stable than
> when braking with the hand.