Originally Posted by hillbilly86
(Post 1242183)
Does anyone happen to know the piston size in the stock front master cylinder?
I did the calculations for caliper/master cylinder piston ratios some time back. STANDARD master cylinder to STANDARD 2 piston caliper ratio is 15.375:1 STANDARD master cylinder to 3 piston caliper ratio is 23.374:1 CBR600F master cylinder to 3 piston caliper ratio is 14.949:1 ( almost the same as standard ) The CBR600F master cylinder is a 5/8" piston ( or 15.88mm ) and it matches the CBR1000F master cylinder for looks. CB1300 master cylinder to 3 piston caliper ratio is 19.234:1 The CB1300 master cylinder is a 14mm piston and it matches the CBR1000F master cylinder for looks. EDIT --- Just been looking at some other master cylinder to caliper ratios : CBR1000F ( Pre CBS braking system - 2 pot calipers ) 16.00:1 CBR1000F ( CBS linked brakes ) 15.375:1 CBR1000F ( STD master cylinder - 3 pistons linked in caliper ) 23.374:1 CBR1000F ( CBR600F master cylinder - 3 pistons linked in caliper ) 14.949:1 CBR1000F ( CB1300 master cylinder - 3 pistons linked in caliper ) 19.234:1 CBR1100xx ( CBS linked brakes ) 15.701:1 CBR600F ( 4 pot calipers ) 12.69:1 CBR929RR ( 4 pot calipers ) 22.918:1 I was hoping to find a common ratio for linked and a common ratio for non-linked but that is not the case. Personally I would be fitting the CB1300 master cylinder and linking all 3 pistons in the front calipers |
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