Re: i am confused-- thnx--so


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Posted by Desoto61 [138.162.0.41] on Friday, June 19, 2015 at 05:50:39 :

In Reply to: Re: i am confused-- thnx--so posted by ed [201.202.24.222] on Thursday, June 18, 2015 at 12:14:27 :

The bore size is usually the same (guess some could step down but doubt it). The difference if anything would be the volume per circuit, drums need less volume so the rear portion could be a smaller portion of the total volume of the MC, but since they both move together there isn't a huge reason to do that either.

Because you will have six cylinders to move the bigger bore will probably be necessary. With all drums or even disk/drum you shouldn't need as big as with an all disk setup.

A 1-1/4" or something in between may be ideal, it's tough to say as part of the choice comes down to personal preference and part is system design. If you like the peddle high and firm with modulation via pressure more than peddle movement then you want a larger bore. Too big and it may just be like standing on a brick and you want something softer with a bit more feel.

What type of peddle, and if and how it is boosted will also make a big difference. The original peddle relied on mechanical advantage and no booster. A hanging peddle setup will rely more on boosting and less on mechanical effort.

A little math can help get you in the ballpark. Just determine the diameters of each of the pistons in the system and that will help determine how much volume you'll be moving, which you can compare to your master. Bigger MC volumes mean stiffer peddles and less movement and vice versa.



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