Brembo MC or B4 Caliper upgrade first?

Discussion in 'Mods, Upgrades, Accessories and Products' started by Gilesy, Dec 12, 2013.

  1. Gilesy

    Gilesy Elite Member

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    Has anyone any thoughts on what upgrade is best "first"? Brembo MC or M4 callipers as a brake upgrade to the RR6 Blade? Some threads seem to point to the Master cylinder first, and of course folk that bought the calipers say that they are amazing..
     
  2. sinewave

    sinewave God Like

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    Deffo Master Cylinder first, Caliper (if needed) second.
     
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  3. ShinySideUp

    ShinySideUp Elite Member

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    Master cylinder seem to be the weakest point of most jap braking systems so would also be my first choice too then if still not 100% happy go with the new calipers.
     
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  4. exfire

    exfire Elite Member

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    I fitted both at the same time to my RR6, but from what I have heard from others, I think as sinewave said MC first. I bought the RCS19 18/20. Added HEL lines at the same time.

    The upgrade made a big difference to the stopping power and has allowed me to brake quite a lot later than on stock gear. Saved me a few times on the road too this year, not sure I would have stopped in time if I had not got them.
     
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  5. Gilesy

    Gilesy Elite Member

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    Thought as much.. only pain is that I've recently put on ASV Shorty gold levers.. and would be a shame to see them go so soon!
     
  6. Slick

    Slick Elite Member

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    I went in this order

    Levers - ASV only bling really!
    Pads - EBC HH but going back to OEM, would like to try Brembo next tho
    Lines - R&G braided
    Fluid - ATE super Blue
    MC - RCS 19 to be fitted very soon;)

    Next rotors then M4s.
    Like already said the MC is the weak point, if I find the MC makes a massive difference I might only fit the rotors.
    I think the main difference between the M4 and the OEM callipers is that M4 have 8x34mm pistons and OEM 4x32 + 4x30mm pistons, so you might find the OEM MC might struggle with the M4, therefore it is better to go MC first

    See 'feel' calculations in http://1000rr.co.uk/general-1000rr-discussion/13520.htm#post223143
     
  7. Gilesy

    Gilesy Elite Member

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    Slick, why you going back to OEM pads? I also use the EBC HH and combined with the Wavy discs, seem to have been an improvement over the OEM..
     
  8. just_me _and _me _bike

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    Eerrrrmmm just for the stoopid ie : ME how by changing teh master cylinder does it make the braking better?? :confused:
     
  9. SIDEWAYS

    SIDEWAYS Senior Member

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    Bigger piston in master cylinder to push more pressure.
     
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  10. Slick

    Slick Elite Member

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    Experimenting more than anything else. I've used 3 sets in the past year OEM/EBC/EBC, though EBC have a little extra initial bite I 'think' OEM may have better modulation on the limit of grip, I just seem to be able to control the brakes more before the ABS kicked in, just trying thing out really.:)
     
  11. exfire

    exfire Elite Member

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    @Gilesy, I know what you mean, I have the Brembo lever on the brake side and a pazzo on the other and the spare pazzo in the shed. Eventually I will replace the Clutch M/c but really only for the cosmetic reason of having the same levers each side......so that can wait.
     
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  12. arthurbikemad

    arthurbikemad A very helpful Gent

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    It's a common miss understanding that bigger piston gives more pressure, it actually the other way round, you will have higher pressure with a smaller piston. Sorry to butt in Sideways but check out the formula and the feel chart that I posted some time back, Slick posted a link. :) Changing master cylinders can be hit and miss if you don't know what piston sizes your mixing, a smaller piston will give you more force and could be an undesirable effect of your not carful! Easy to pull and high pressure is not a good mix for example. The same effect would be adding callipers with larger piston size, it's not that you have enlarged the pistons it's that you have made the masters smaller.
     
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  13. Gilesy

    Gilesy Elite Member

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    Brembo MC - cheaper than trying the calipers first and wishing you bought the MC first :)
     
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  14. Slick

    Slick Elite Member

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  15. Gilesy

    Gilesy Elite Member

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  16. Gilesy

    Gilesy Elite Member

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    arthurbikemad - makes perfect sense.. so assuming that the Brembo has a "smaller" internal piston diameter than stock, then there is an increase in hydraulic force applied to the caliper pistons for the same force applied through my grubby hands :cool:
     
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  17. Gilesy

    Gilesy Elite Member

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    Slick, did you go with the guys in the other thread about the MC and go for a new reservoir etc?
     
  18. arthurbikemad

    arthurbikemad A very helpful Gent

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    Tbh mate it's a combination of factors, or in other words more than one factor that gives you the feel you want, in the real world a 19mm master works fine with the OEM callipers and has the perfect ratio for M4 34x34, if you like a firm lever go for a 19 x 20 if you like it softer and more progressive go for 19 x 18, Brembo say 20 for the road as it's harder to pull and in the event of an emergency stop you don't ask for too much in haste if you get me. Guess I'm just over complicating the situation....lol Oh and that OPP article is slightly misleading IMO but guess they want a quick explanation, impossible if you ask me...lol

    Right I'll sod off now :)
     
    #19 arthurbikemad, Dec 12, 2013
    Last edited: Dec 12, 2013
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  19. Slick

    Slick Elite Member

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