Alan, I must disagree with this a little. As pertains to the front
Calipers..... the Type 14 pistons are 48mm  the Type 16 pistons are 54mm
   Peter C
On 3/25/2019 1:29 PM, Bluehealey wrote:
> The 100-6 had drum brakes.
> The BT7 was fitted with discs and Type 14 calipers (7/8â?? dia. pistons)
> paired with 3/4â?? rear cylinders. That is the way to go.
> BJ8 used Type 16 calipers and also 3/4â?? rear cylinders. That is also good
> but gives slightly longer pedal travel. BMC compensated by increasing the
> Master cylinder size and adding a servo. Not strictly necessary but gave good
> results with lower pedal effort.
> You pays your money and take your choices.
> If you stay with 1â?? rear cylinders the rears will lock under hard braking
> and potentially cause you switch ends. Not recommended.
> AlanB
> Bluehealey.com
>
>
>> On 25 Mar 2019, at 14:02, Mike MacLean <rrengineer.mike@att.net> wrote:
>>
>> So, I guess since I am putting 100-6 disc brakes on the front of my BN2 I
>> won't have to do anything since both front and rear cylinders are 1" dia.?
>> Mike MacLean
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