Avid rotor upgrade

stumpjumper5413
stumpjumper5413 Posts: 40
edited March 2011 in MTB workshop & tech
Hi
Im looking for abit of advice, I have a hardtail Stumpjumper, with Avid juicy 5's on 160mm rotors front n back.

I only do xc riding so im not riding down the alps very often, but im not 100% happy with my brakes.

I was thinking of getting a 185mm rotor upfront, would this be £35 well spent or would i be better investing in some better brakes

i would be very grateful for any opinions

Jon

Comments

  • MountainMonster
    MountainMonster Posts: 7,423
    The 183s will make them a bit stronger, and it may be worth having a bleed as well.

    When was the last time they were bled? I find my brakes adequate for most of the trails around here, and i've got juicy 3's.
    My London Road
  • stumpjumper5413
    stumpjumper5413 Posts: 40
    thanks for your reply, I bled em before an event around September time last year I think, but even then I felt I could do with abit more (maybe its my DIY bleeding skills)

    Do you run a 183mm up front?
  • 02gf74
    02gf74 Posts: 1,171
    stumpjumper5413 wrote:
    Hi


    I only do xc riding so im not riding down the alps very often, but im not 100% happy with my brakes.

    Jon

    what exactly are you not happy about?
  • Anonymous
    Anonymous Posts: 79,667
    switching from 160 to 183mm rotors will give you a 1.17 decibel increase in braking power.
  • 02gf74
    02gf74 Posts: 1,171
    yeehaamcgee wrote:
    switching from 160 to 183mm rotors will give you a 1.17 decibel increase in braking power.

    please can you show how you worked this out.

    deciBel is a logartihmic scale and it does not look like you have taken this into account.
  • diy
    diy Posts: 6,473
    11 quid + a 5er for the 180mm bracket from superstar, avoid the saw tooth, go for vibe or wave. and maybe switch pads to kevlar at the same time now that we are approaching dryer weather.
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  • Anonymous
    Anonymous Posts: 79,667
    02GF74 wrote:
    yeehaamcgee wrote:
    switching from 160 to 183mm rotors will give you a 1.17 decibel increase in braking power.

    please can you show how you worked this out.

    deciBel is a logartihmic scale and it does not look like you have taken this into account.
    Erm, I did the maths. FYI a 320mm rotor would give 6db more power than a 160mm rotor.

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