Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,482
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)

    New to disk brakes, just found out the fork I'm ordering isn't compatible...

    I just noticed the Marzocchi DJ2 I'm about to order had a funny looking brake mount. Being new to disk brakes, I had no idea they had different types of mounts. Now I'm looking into this and wondering what my best route is to deal with the situation and hoping I could get a little input from you all who know way more about this than I. Are there just the two standard kinds of mounts, or do I need to worry about it further than that? I did see that there are some adapters on the website I'm ordering the fork from that I could order with the fork, but I want to make sure I'm not overlooking something and order a part that won't help me out at all. That seems to be the cheaper way to go and I can't afford to get new brakes to go along with this fork right now.

    I need use my Tektro caliper on the Marzocchi fork that looks like it takes a 6" PM brake caliper. The Tektro is the kind where the bolts go in from the side of the caliper rather than from the back (Looks like that's called IS?).
    Last edited by 3speed; 09-29-11 at 09:47 PM.
    90 Miyata 914 with full Dura-Ace
    74 Ellis-Briggs, full butted 531
    80s Cierra Professional 5000, Tange Champion 2 and Shimano 600
    2011 New Belgium Cruiser
    Fetish Cycles "Discipline" built up with DJ2 fork and Shimano XTR, LX, Avid BB7.

    Quote Originally Posted by scyclops View Post
    Oh yeah, sure, what if everyone thought that way? Then internet forums would merely be places where rational people exchange useful information and ideas - instead of the chaotic, emotionally-charged circuses that they are.

  2. #2
    B A N N E D
    Join Date
    Aug 2006
    Posts
    1,014
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Fork with 6" Post Mounts (some forks have 7" Post Mounts and you can't use a 6" rotor) + Post Mount brake + 6" rotor = no adapter needed, the brake will bolt straight onto the fork.

    Photo of a PM fork with a PM brake.
    Photo of a IS fork with a PM brake & adapter.

    The fork in question has the 6" Post mounts.
    http://www.marzocchi.com/template/de...dOggetto=56816
    Last edited by cobba; 09-29-11 at 10:36 PM. Reason: wrong size photo

  3. #3
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,482
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Sorry. I might not have worded my post clearly. The fork is PM, but my caliper is IS. I need an adapter to put an IS caliper on a PM fork.
    90 Miyata 914 with full Dura-Ace
    74 Ellis-Briggs, full butted 531
    80s Cierra Professional 5000, Tange Champion 2 and Shimano 600
    2011 New Belgium Cruiser
    Fetish Cycles "Discipline" built up with DJ2 fork and Shimano XTR, LX, Avid BB7.

    Quote Originally Posted by scyclops View Post
    Oh yeah, sure, what if everyone thought that way? Then internet forums would merely be places where rational people exchange useful information and ideas - instead of the chaotic, emotionally-charged circuses that they are.

  4. #4
    B A N N E D
    Join Date
    Aug 2006
    Posts
    1,014
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    My mistake, I misread your post.

    160mm adapter
    http://clee-cycles.co.uk/esite/P1043/product

    180mm adapters
    http://www.starbike.com/php/product_...g=en&pid=13518
    http://www.chainreactioncycles.com/M...?ModelID=13735
    http://clee-cycles.co.uk/esite/P1044/product
    http://www.wiggle.co.uk/a2z-adapter-pm-to-is/

    * Not all IS mount brakes have enough clearance to be used with the 160mm adapter, some brakes can only be used with the 180mm adapters.
    * I've seen photos where the 160mm adapter didn't have enough clearance to fit on a Post Mount fork. A fork with large diameter lowers will have shorter Post Mounts then a fork with smaller diameter lowers and the position of the fork ends / dropouts in relation to the lowers can also affect the length of the Post Mounts.
    Last edited by cobba; 09-30-11 at 12:36 AM. Reason: wrong link

  5. #5
    In search of moar cowbell dminor's Avatar
    Join Date
    Oct 2004
    Location
    The 509
    My Bikes
    1971 Suzuki TS125/ factory race kit/AHRMA-legal; 1969 Suzuki TS250/factory race kit; 1967 Suzuki K-15 Hillbilly Trail 80; 1977 Yamaha IT175; 1964 VanTech Scrambler racing frame
    Posts
    12,143
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 3speed View Post
    Sorry. I might not have worded my post clearly. The fork is PM, but my caliper is IS. I need an adapter to put an IS caliper on a PM fork.
    I don't see a single Tektro disc brake in their lineup that is only IS mount. Unbolt the caliper from its IS adapter and you now have post mount.

  6. #6
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,482
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Just went and double checked the caliper. There is no adapter on it and it's IS mount. It is ~4yrs old, so I guess it's probably not the same as their current/recent product line.
    Last edited by 3speed; 09-29-11 at 11:08 PM.
    90 Miyata 914 with full Dura-Ace
    74 Ellis-Briggs, full butted 531
    80s Cierra Professional 5000, Tange Champion 2 and Shimano 600
    2011 New Belgium Cruiser
    Fetish Cycles "Discipline" built up with DJ2 fork and Shimano XTR, LX, Avid BB7.

    Quote Originally Posted by scyclops View Post
    Oh yeah, sure, what if everyone thought that way? Then internet forums would merely be places where rational people exchange useful information and ideas - instead of the chaotic, emotionally-charged circuses that they are.

  7. #7
    B A N N E D
    Join Date
    Aug 2006
    Posts
    1,014
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by dminor View Post
    I don't see a single Tektro disc brake in their lineup that is only IS mount.
    The Tektro Novela was made in a IS mount version.


  8. #8
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,482
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    ^ That's what I have. I know it's not a great caliper, but right now I'm not even on a bike until I get the new fork and I don't have the funds to buy a nice set of disk brakes right now. I plan to buy some nice PM brakes sometime this winter but for now...

    Thanks for all your help.
    Last edited by 3speed; 09-29-11 at 11:29 PM.
    90 Miyata 914 with full Dura-Ace
    74 Ellis-Briggs, full butted 531
    80s Cierra Professional 5000, Tange Champion 2 and Shimano 600
    2011 New Belgium Cruiser
    Fetish Cycles "Discipline" built up with DJ2 fork and Shimano XTR, LX, Avid BB7.

    Quote Originally Posted by scyclops View Post
    Oh yeah, sure, what if everyone thought that way? Then internet forums would merely be places where rational people exchange useful information and ideas - instead of the chaotic, emotionally-charged circuses that they are.

  9. #9
    In search of moar cowbell dminor's Avatar
    Join Date
    Oct 2004
    Location
    The 509
    My Bikes
    1971 Suzuki TS125/ factory race kit/AHRMA-legal; 1969 Suzuki TS250/factory race kit; 1967 Suzuki K-15 Hillbilly Trail 80; 1977 Yamaha IT175; 1964 VanTech Scrambler racing frame
    Posts
    12,143
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ^^ Oh, crap. Sorry my searching did turn up an image of one or two that I figured had to be earlier versions (one even looked a ringer for an old set of RST brakes I had) that were IS only but I thought "what are the chances?" And, well . . . .

  10. #10
    Senior Member
    Join Date
    Aug 2009
    Location
    Madison, WI
    Posts
    2,482
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Haha, no biggie. Those stupid chances will get you every time if they can... Thanks for looking into it and trying to help.
    90 Miyata 914 with full Dura-Ace
    74 Ellis-Briggs, full butted 531
    80s Cierra Professional 5000, Tange Champion 2 and Shimano 600
    2011 New Belgium Cruiser
    Fetish Cycles "Discipline" built up with DJ2 fork and Shimano XTR, LX, Avid BB7.

    Quote Originally Posted by scyclops View Post
    Oh yeah, sure, what if everyone thought that way? Then internet forums would merely be places where rational people exchange useful information and ideas - instead of the chaotic, emotionally-charged circuses that they are.

Posting Permissions

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