Rear Master Cylinders: CBR600F4i vs VFR800Fi1- Delinked Brake System

2 posts Started 18 Mar 2023 Last recovered post 19 Mar 2023 Wayback Machine snapshot 22 Mar 2023

#1 wawasonqo Thread starter

18 Mar 2023 20:08

Hi Folks,

According to page 1-11 of the Service Manual, the Outer Diameter of the Piston of the Rear Brake Master Cylinder for the 5th Gen. VFR800 is 17.417 - 17.444 mm (0.6857 - 0.6868 inches).

According to the following page, the Outer Diameter of the Piston of the Rear Brake Master Cylinder for the CBR600F4i is 13.957 - 13.984 mm (0.5495 - 0.5506 inches).

https://cbrforum.com/forum/f4i-main-forum-11/cbr-600-f4-mastercylinder-bore-diameter-120891/#post1012291

Which is better, and why, for pushing the 3 pistons of the VFR calipers on a De-linked Brake System?

Thanks!

#2 ducnut

19 Mar 2023 15:31

Nearly all the Honda sporty bikes of that era used the same size master. That’s the one you need, as mentioned in the other thread you commented in.

End of thread · 2 posts recovered Wayback Machine snapshot 22 Mar 2023