[Healeys] Rear wheel cylinders on a BJ8

[Kees Oudesluijs]

Same with the car. You loose traction, both sideways and length wise. On 
a bike you can correct by counter steering with is very direct and by 
leaning over, in a car you cannot as the wheels react rather indirect on 
the steering wheel and if you deviate only slightly from the straight 
ahead direction the rear will pass the front. As the brake forces on the 
front wheels (as on the rear wheels) will never be 100% equal because of 
slight differences in the brakes L/R and on the road surface you will 
not be able to hold the straight ahead direction and thus............ A 
very good driver may be able to counteract this but the average driver 
will not, certainly not on a wet road.

Kees Oudesluijs



Op 28-8-2019 om 02:53 schreef Bob Spidell:
> OT, a little, but I've never understood the physics of this.  When I 
> ride my bike, I can lock up the rear wheel and all it does is skid.
>
> Bob
>
>
> On 8/27/2019 9:29 AM, Michael Salter wrote:
>> Have to agree with Kees on this one.
>> We have a brake bias control on AHX12 and I can certainly attest to 
>> the fact that when the conditions change to "wet" removing a lot of 
>> rear braking is absolutely essential to prevent the car from swapping 
>> ends.
>> As most road cars don't have adjustable brake bias I would be very 
>> careful in trying to increase the rear braking.
>> When braking into a corner the last thing you want is the rear end 
>> coming around, particularly in the wet.
>>
>> M
>>
>> On Tue, Aug 27, 2019 at 12:09 PM Kees Oudesluijs 
>> <coudesluijs at chello.nl <mailto:coudesluijs at chello.nl>> wrote:
>>
>>     Whatch out driving in the rain as the rear brakes will lock the rear
>>     wheels much quicker than with the smaller pistons.Rear brakes are
>>     only
>>     providing a small portion of the total brake force.
>>
>>     Kees Oudesluijs
>>
>>     Op 27-8-2019 om 18:04 schreef Chris Dimmock:
>>     > Hi Men
>>     > Has anyone else ever changed their rear wheel cylinders from
>>     3/4 inch to 7/8 inch?
>>     > I just did. Sick of the rear brakes doing nothing. Freeloaders!!
>>     > Yes, no problem with seized wheel cylinders, no problem with
>>     the flexible hose - just bugger all wear on the rear linings.
>>     > I'll let you know how it goes on my BJ8
>>     > Best
>>     > Chris
>>
>
>
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