Later vitesse rear cylinders

[Gadgetman]

I am in the process of replacing the rear cylinders on my Vitesse 6. Is there any advantage fitting the later Vitesse larger bore rear cylinders & will I need to change anything else if I do?

[Pete Lewis]

Guess many have, we did on mine but also changed the weedy type 12 to later type16 with mintex pads

You need to change the stub/ upright caliper brackets ,

 

makes more sensible stopping power

 

pete

[clive]

Keep what it has. The later cars have larger front brakes. The last thing you want is too much braking at the rear (ie you spin)

 

If you follow petes lead and fit the bigger front brakes, you could then use the larger cylinders at the rear.

[dougbgt6]

Agree with Pete and Clive. Early GT6s had a servo option which worked on all 4 wheels. Late GT6s had larger rear cylinders, bigger drums and a larger master cylinder, but the servo, now fitted as standard only works on the front wheels. A tricky business getting the front/rear balance right. 

 

I don't know about the Vitesse but it's a good idea to check what the whole brake specification is for the mod you want to make.

[68vitesse]

The master cylinder is also different.

 

Regards

 

Paul

[Pete Lewis]

agree on  the m cyl this went from the 5/8" to 0.7 when the bigger calipers were introduce due to the greater volume involved

 

the trouble with type 12s is doesnt matter what pads you use a well set 1600 out paces them very easily 

 

          type 14 would fit the existing mounts , with more pad availability    the 16s  mounts are about 3rd of a hole to big. 

 

          keeping the front rear balance is important , triumph ( and all the others ) spent a lot of development time  getting these thing right

 

          but any spirited driving on 12s with the  power/ weight of the 6 is enlightening 

 

          Pete

[clive]

Simple solution would be bolt a later vitesse disc on the hub, and use a set of princess 4 pot calipers (or new lightweight alternatives), or later vitesse GT6 calipers and mounts.......

 

That will stop them no problem.

[dogsbody47uk]

Different uprights would probably be needed.

[Pete Lewis]

To go from 12 or 14 to a 16 you need the caliper mounting the upright remains unchanged

if you had a herald /spit with the spider forged upright and integral mount then you need to change to a vit gt6 upright

 

canley sell the caliper mounts as ally ones

 

as they can be dificult to source

 

pete