Advertise on Bikeforums.net



User Tag List

Results 1 to 21 of 21
  1. #1
    sth
    sth is offline
    Senior Member sth's Avatar
    Join Date
    May 2005
    Location
    Vancouver, Wet Coast
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    What brand/model of disc brakes?

    I am going to outfit a new road/tour/commuter frame with hydraulic discs and am trying to decide what brand/model of disc brakes. The choices are Shimano LX or XT, Hayes 9, or Avid 5. I am leaning to the LX set up. Stopping power is probably equal for all so it is more an issue of reliability, easy or use and quality. I think the XT is probably costly overkill and I have heard that the 9's are maybe loosing a little quality control. Dont know much about the Avids and they not a strong contender.

    Does the mountain bike community have any good ideas?

    thank

    sth

  2. #2
    Senior Member Drunken Chicken's Avatar
    Join Date
    Feb 2005
    Location
    Spain, although I'm Hungarian
    My Bikes
    Check signature
    Posts
    1,855
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    I am going to outfit a new road/tour/commuter frame with hydraulic discs and am trying to decide what brand/model of disc brakes. The choices are Shimano LX or XT, Hayes 9, or Avid 5. I am leaning to the LX set up. Stopping power is probably equal for all so it is more an issue of reliability, easy or use and quality. I think the XT is probably costly overkill and I have heard that the 9's are maybe loosing a little quality control. Dont know much about the Avids and they not a strong contender.

    Does the mountain bike community have any good ideas?

    thank

    sth
    I heard the Avid Juicy 5s are great, I think Maelstrom here runs them on one of his bikes.
    2005 Ironhorse 7.3
    2005 Specialized Hardrock Sport

  3. #3
    The Rabbi seely's Avatar
    Join Date
    Apr 2004
    Posts
    4,957
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    The XT's or Avid Juicy fives would be an excellent choice. XT's do have the edge in my opinion in that they use mineral oil vs. DOT4 brake fluid.
    commuter turned bike mechanic turned commuter (also a Velocity USA employee, but this is my personal account)

  4. #4
    Giggity giggity! Dirtbike's Avatar
    Join Date
    Nov 2004
    Location
    Danville, Ca
    My Bikes
    Yeti DJ Custom build. X.9, Marzocchi, RaceFace, Gamut, DT, Truvativ, Michelin, Hope.
    Posts
    1,800
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Out of those, I would pick the Juicy 5s. They are excellent brakes.

    I love hope brakes though. Hope M4s have excellent modulation and one finger endo power.
    Rides: 06 Demo8 II, Yeti DJ
    Pin it baby!

  5. #5
    Senior Member
    Join Date
    Jan 2005
    Location
    Chicago
    My Bikes
    2002 Bianchi Veloce 2005 Gary Fisher Marlin
    Posts
    516
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Is there a reason you are looking at hydraulics for your commuter instead of mechanical discs? I don't know if you would be able to utilize all the improvements over mechs hydraulics have to offer. Obviously these benefits come at a cost and I don't know if a commuter/tourer would want these tradeoffs.

  6. #6
    Senior Member alcahueteria's Avatar
    Join Date
    Mar 2005
    Location
    Philadelphia
    My Bikes
    Specialized AWOL, Soma Juice
    Posts
    1,022
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by seely
    The XT's or Avid Juicy fives would be an excellent choice. XT's do have the edge in my opinion in that they use mineral oil vs. DOT4 brake fluid.
    why is mineral oil a better choice than DOT4 fluid?

  7. #7
    Wood Licker Maelstrom's Avatar
    Join Date
    Apr 2002
    Location
    Whistler,BC
    My Bikes
    Transition Dirtbag, Kona Roast 2002 and specialized BMX
    Posts
    16,888
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Some people have environmental concerns

  8. #8
    pacifist-vegetarian biker
    Join Date
    Mar 2005
    Location
    San Diego
    My Bikes
    Iron Horse Triumph, Trek 800, KHS XC604
    Posts
    178
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    from the shimano website
    "

    All Shimano hydraulic disc brakes use natural mineral oil. This oil is friendly to the environment, non-toxic and non-corrosive. This oil is the ideal media for bicycle disc brake systems.
    "
    I remember hearing that mineral oil is less prone to contamination, but I might be making that up. It also says that you should only use the shimano branded oil, so any price advantage is gone.

    Personaly I love my avid bb5 mechs. I really don't see any advantage to using hydro for a commuter bike.
    My bikes:
    MTB: 2005 KHS XC604 FS (SRAM x9)
    Road/commuter: 2003 IronHorse Triumph (Shimano Sora)
    Road/race: 2001 Tsunami (Campy Record 9s)
    City/hybrid: touring frame, flat bars, deore shifter/rd, 52t crank.

  9. #9
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    On a commuter I'd want Avid BB7's, $70 a wheel and much easier to deal with in the field.
    http://www.pricepoint.com/detail/126...rake-160mm.htm

  10. #10
    sth
    sth is offline
    Senior Member sth's Avatar
    Join Date
    May 2005
    Location
    Vancouver, Wet Coast
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks all for your input. The main reason for going with discs on a commuter/tourer or any bike for me is rim wear. Winter riding on the rainy west coast eats rims with "v" brakes for breakfast. I am tired of replacing rims with worn out sides. I want to set up a pair nice rims on the new ride and want them to last for a while. Hydraulics? Well better feel, stronger, no cable stretch, and we all have to admit...wow factor. However after reading some owner reviews on another site, I am re-thinking the hydraulic aspect. Lots of issues around mess, maintenance, cost, set up etc. Maybe the Avid BB7 is a good option.

    Any more thoughts on these?

    As for mineral oil vs DOT fluid: DOT is vehicle fluid and meant for very high heat and pressure, nothing a bike will ever face. It is messy, toxic, hydroscopic (absorbs moisture out of the air - that large container you buy and use a few ml out of very year or two could well be contaminated by the next time you use it and water is corrosive in the system) and it destroys paint if it dribbles and is not cleaned up quickly.

    sth

  11. #11
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    Maybe the Avid BB7 is a good option.

    Any more thoughts on these?
    They're all my 265# butt needs to go trail riding around here and when set up well I'd trust them to be more than adequate for even a Minnesota winter. (I haven't lived in FL ALL my life)

    Pair them up with a set of Dry Cables and you won't have to worry about cable contamination.

    With replacement rotors starting at $17 and pads at $13 you can't go wrong
    Last edited by Raiyn; 06-10-05 at 04:34 PM.

  12. #12
    Senior Member
    Join Date
    May 2003
    Posts
    253
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I have Shimano hydraulics but if I were shopping would go with Avid mechanicals. Simple is good.

  13. #13
    sth
    sth is offline
    Senior Member sth's Avatar
    Join Date
    May 2005
    Location
    Vancouver, Wet Coast
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Raiyn
    They're all my 265# butt needs to go trail riding around here and when set up well I'd trust them to be more than adequate for even a Minnesota winter. (I haven't lived in FL ALL my life)

    Pair them up with a set of Dry Cables and you won't have to worry about cable contamination.

    With replacement rotors starting at $17 and pads at $13 you can't go wrong
    I am leaning toward the BB7s. Everything I read, on this forum and elsewhere, seems positive about them. A concern I have with them, and maybe it is more a "looks" issues, is cable routing for the rear. The Marinoni frame i am likely to buy has the rear two hole bracket mounted away from the seat stay, pointing straight up, on its own. Presumably this is for easier rack mounting on a touring frame. The Avid hydraulic hoses use a small banjo fitting at the caliper body allowing the hose to leave the caliper at any angle. The BB7 cable leaves the body straight up. To avoid a kink would require a relatively large arc back to the frame. To me, this leaves it vulnerable to getting caught up on something, and it doesnt look good. Am I reading too much into this??

    Also, what are good hubs? I was planning to go with XT's but it seems they only work with their dumb a** proprietary center lock (for 36 hole hubs) which eliminates the competitors brakes. This will be a commuter/tourer/fitness bike so tank strong is less impotant than quality bearing surfaces and good sealing.

    Thx,

    sth

  14. #14
    Giggity giggity! Dirtbike's Avatar
    Join Date
    Nov 2004
    Location
    Danville, Ca
    My Bikes
    Yeti DJ Custom build. X.9, Marzocchi, RaceFace, Gamut, DT, Truvativ, Michelin, Hope.
    Posts
    1,800
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    Also, what are good hubs? I was planning to go with XT's but it seems they only work with their dumb a** proprietary center lock (for 36 hole hubs) which eliminates the competitors brakes. This will be a commuter/tourer/fitness bike so tank strong is less impotant than quality bearing surfaces and good sealing.

    Thx,

    sth
    Actually I, and other people on this board, who do not like shimano, like the centerlock mount. It uses a lockring that is the same as the one for a cassette, so the tool is pretty common. It also gets the rotor perfectly round, as opposed to the play you have when you use bolts.

    The XT hub still does come in six-bolt, so if you really want that hub, go for it.
    http://www.jensonusa.com/store/produ...M756+Hubs.aspx
    Rides: 06 Demo8 II, Yeti DJ
    Pin it baby!

  15. #15
    sth
    sth is offline
    Senior Member sth's Avatar
    Join Date
    May 2005
    Location
    Vancouver, Wet Coast
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Dirtbike
    Actually I, and other people on this board, who do not like shimano, like the centerlock mount. It uses a lockring that is the same as the one for a cassette, so the tool is pretty common. It also gets the rotor perfectly round, as opposed to the play you have when you use bolts.

    The XT hub still does come in six-bolt, so if you really want that hub, go for it.
    http://www.jensonusa.com/store/produ...M756+Hubs.aspx
    I have no issues with the center lock, anything Shimano does, they do right. Top quality stuff. I just dont like companies that make stuff that is so unique it cant be mix and matched. No other brake systems (that I have seen) use the c/l. All are 6 bolt. Shimano does offer 6 bolt XT hubs but only in a 32 hole version and I am going to use 36. Maybe that will change but for now I think 36 is best for what will use the bike for.

    sth

  16. #16
    Lost in the Black Hills mx_599's Avatar
    Join Date
    May 2005
    Posts
    5,725
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    I am going to outfit a new road/tour/commuter frame with hydraulic discs and am trying to decide what brand/model of disc brakes. The choices are Shimano LX or XT, Hayes 9, or Avid 5. I am leaning to the LX set up. Stopping power is probably equal for all so it is more an issue of reliability, easy or use and quality. I think the XT is probably costly overkill and I have heard that the 9's are maybe loosing a little quality control. Dont know much about the Avids and they not a strong contender.

    Does the mountain bike community have any good ideas?

    thank

    sth
    Just get any brakes and HOPE for the best

  17. #17
    Senior Member Sebach's Avatar
    Join Date
    Nov 2004
    Location
    Ottawa, Canada
    My Bikes
    Surly Long Haul Trucker
    Posts
    325
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well there are adapters that can be had to adapt the CL to a 6 bolt... if that helps.

  18. #18
    R6G
    R6G is offline
    Member
    Join Date
    Jan 2005
    Posts
    35
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    I am going to outfit a new road/tour/commuter frame with hydraulic discs and am trying to decide what brand/model of disc brakes. The choices are Shimano LX or XT, Hayes 9, or Avid 5. I am leaning to the LX set up. Stopping power is probably equal for all so it is more an issue of reliability, easy or use and quality. I think the XT is probably costly overkill and I have heard that the 9's are maybe loosing a little quality control. Dont know much about the Avids and they not a strong contender.

    Does the mountain bike community have any good ideas?

    thank

    sth
    Are you thinking about using a flat handlebar? I've never seen a hydraulic disc system with brake levers for road/drop handlebars, but maybe there is one. Does anyone know?

  19. #19
    sth
    sth is offline
    Senior Member sth's Avatar
    Join Date
    May 2005
    Location
    Vancouver, Wet Coast
    Posts
    305
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by R6G
    Are you thinking about using a flat handlebar? I've never seen a hydraulic disc system with brake levers for road/drop handlebars, but maybe there is one. Does anyone know?
    Yes, a flat bar. Any drop bar bike that is equipped with disc brakes uses mechanicl style. No hydro levers for these bars.

    sth

  20. #20
    I drink your MILKSHAKE Raiyn's Avatar
    Join Date
    Jul 2002
    Location
    St. Petersburg, FL
    My Bikes
    2003 Specialized Rockhopper FSR Comp, 1999 Specialized Hardrock Comp FS, 1971 Schwinn Varsity
    Posts
    15,071
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by sth
    The Marinoni frame i am likely to buy has the rear two hole bracket mounted away from the seat stay, pointing straight up, on its own. Presumably this is for easier rack mounting on a touring frame.
    As near as I can figure it you're correct
    Quote Originally Posted by sth
    To avoid a kink would require a relatively large arc back to the frame. To me, this leaves it vulnerable to getting caught up on something, and it doesnt look good. Am I reading too much into this??
    Yes and no. The cable could be secured to the rack. However I went to the Marinoni site to snoop around and came up with this It relys on a device called a Travel Agent used as a pulley to direct the cable through the 90 degree bend
    In theory this should allow you to route the cable as shown in the diagram
    Quote Originally Posted by sth

    Also, what are good hubs? I was planning to go with XT's but it seems they only work with their dumb a** proprietary center lock (for 36 hole hubs) which eliminates the competitors brakes. This will be a commuter/tourer/fitness bike so tank strong is less impotant than quality bearing surfaces and good sealing.
    I've found the 32 hole 6 bolt XT's work quite well I also do like the Centerlock design, but I hate the riveted rotors they came out with. I'd rather get this http://www.mbaction.com/detail.asp?id=1163 in order to use normal rotors
    Last edited by Raiyn; 06-14-05 at 04:26 PM.

  21. #21
    chopsockey jo5iah's Avatar
    Join Date
    Feb 2005
    Location
    Seattle
    My Bikes
    Monkey SS everythingbike, Ti frankenroadbike
    Posts
    253
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How much do you want to spend on hubs?

    A friend and I just did a bit of research for his first wheel build, and he went with Hope hubs. They're pretty sexy, and seemed the best value.

    Back to the brakes: I've got Avid BB, with 203mm rotors on my XC rig. I could've gone with smaller rotors (these stop me plenty fast), but in rain, on muddy trails, I still slow and stop as desired. For a commuter, I might suggest Avid's road BB (though I've not had experience with 'em). They're designed for shorter travel levers. The TravelAgent worked pretty well on a commuter I had that had road levers to V-brakes, but if you're starting from scratch and can build it right...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •