general babbling about master cyl and the single blue or gold dot caliper

[sav0r (CL MotoTech)]

What's the difference between a silver FZR caliper and a blue dot? I'm running a 13mm master from a quad or something, I got it for like $15 used. Asides from needing pads, the setup with the stock fzr (silver) caliper it works very well. I'm also running an off brand aluminum center wave style disc that I bought used on eBay. It looks great and works fine for the street. Loads of stopping power and very light.

[m in sc]

i had good luck the silver fzr caliper and 13mm master a swell, id imagine piston area. ?

[retaRD]

I've referred to this site for years.

http://www.vintagebrake.com/mastercylinder.htm

[m in sc]

well the total piston area is right at 2558.84 for the gold or blue dot calipers. (each caliper) they are 27mm and 30mm, 2 of each in each single caliper.

  actual ratio is 26.926 which 27, I believe, is considered ideal. (2558.84/95.03 )

[bitzz]

well the total piston area is right at 2558.84 for the gold or blue dot calipers. (each caliper) they are 27mm and 30mm, 2 of each in each single caliper.

  actual ratio is 26.926 which 27, I believe, is considered ideal. (2558.84/95.03 )

27 may theoretically ideal, but there is some preference in there too.
If the "ideal" on the chart is 27, I have found I prefer a little less, maybe 25.
My rider prefers MORE, so he may get 28.

Radial masters are where it's at.

[m in sc]

of course. they don't take into account lever geometry either, that makes a huge difference. But, generally speaking as a rule of thumb, thats the target then adjust for feel.

[Organicjedi]

actually a lot of people prefer a 13 on a stock rd caliper. I tried it didn't like it, prefer a 14. have a 12 on the rear on on the lc, gives really good feel with a much shorter brake lever.

I agree, 13mm would feel too light and squishy for me. I like a little more feedback with the controls.

I noticed the rear brake on my 400 isn't as positive feeling with the rear sets. It feels mushy. Not bad enough to change anything, but I thought it odd as my assumption was that it would feel stiffer with the shorter lever.