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  1. #1
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    Will a disc brake go with this fork?

    Hi,
    I have recently bought a Focus BlackStone hybrid. It came with RST Vogue fork. Bike itself is made in 2006 and I believe that the fork is an original part. I'd like to put some kind of disc brake (whether mechanical or hydraulic I have not yet decided) but being a total newbie in this topic I'm not sure if it is even possible.
    Below is a pic of a place where normally a disc brake would come:


    Uploaded with ImageShack.us

    One hole has a rubber cap which can be seen on the pic. The same combination is on the other side which makes me worry this holes are for mudguards or such. Both holes are threaded. Additionally on the fork (upper left side) there is a welded piece onto which a cable housing might be clamped, so maybe there is some hope for disc brake?
    I've tried to look this issue I have somewhere on teh Internets but with no success. It all does no look like a PM or IS to me and so I turn to you all, kind bikeforums.net users for help and advice.

  2. #2
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    we might need a better picture of the whole fork.
    Does the fork have V-brake mounts?

  3. #3
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    No,those are not disc mounts. You might be able to get a framebuilder to weld some on,but if this is a lower end fork,you'd prolly do better just swapping a proper rigid disc fork on. Note,if you don't have disc hubs(and you prolly don't) you'll either need to swap the wheel or rebuild it with a disc hub.

    Quote Originally Posted by njsteve View Post
    Does the fork have V-brake mounts?
    Note noodle next to grip. Def V brakes.

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  4. #4
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    The frame may have disc caliper mounts. I know my Fuji mtb frame has v brake and disc mounts. If thats the case all you need is a new fork and the brakes themselves.

  5. #5
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    Quote Originally Posted by krobinson103 View Post
    The frame may have disc caliper mounts. I know my Fuji mtb frame has v brake and disc mounts. If thats the case all you need is a new fork and the brakes themselves.
    And wheels/hubs. If it's a lower model bike(which I'm guessing if it's a V braked MTB),I doubt it came with disc hubs.

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  6. #6
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    Hi,
    Thanks for the answers and sorry for the wait. Here is a picture of the whole fork. It does have v-brak pivots.




    Uploaded with ImageShack.us

    As you can see, on the left side there is a mount for a cable housing. What would it be if not for disc brake?

    Additionally the frame has mount for rear disc brake (I guess):




    Uploaded with ImageShack.us

    And sorry for the mess in the background of both pics...

  7. #7
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    These are disc brake mounts:

    TECH_Disk_tab_type.jpg

    You might be able to find some kind of adapter,but I would def check with a shop. Your frame does have a rear disc mount;that frame is obviously used for more than one model.

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  8. #8
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    Good to go on the back. Rockshox make dome pretty decent budget forks. But given you need a new fork, new hubs, and the brakes it won't be cheap.

  9. #9
    coprolite fietsbob's Avatar
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    To confirm .. No... you need a different fork.



    more practical if the rim brakes dont float your boat..

    Is wheels .. with Drum brakes in the hubs ..

    But.. Realistically , sell the bike you don't like , and buy a new one equipped, out of the gate,
    with Disc Brakes
    Last edited by fietsbob; 01-30-13 at 12:49 PM.

  10. #10
    or tarckeemoon, depending marqueemoon's Avatar
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    Quote Originally Posted by JanekTheFizyk View Post
    Hi,
    Thanks for the answers and sorry for the wait. Here is a picture of the whole fork. It does have v-brak pivots.



    The symmetry of these threads on both legs of the fork and the fact that the threads on the top and bottom are not oriented the same way points to no. There does seem to be more material than would be expected around a "fender" eyelet though.

    Either there's some funky model specific caliper adapter that you may or may not be able to order or you're out of luck with this particular fork.

    If you're ok with a rigid fork you can get one of those pretty cheap from Dimension, Kona, Surly, etc... See if you can find the axle-to-crown and rake specs for the Vogue to find the closest match.

  11. #11
    or tarckeemoon, depending marqueemoon's Avatar
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    Also, if you're thinking of a disc brake in the rear measure the dropout spacing. If it's 130mm and your existing rear wheel isn't already "disc ready" you may want to consider abandoning the idea. 130mm disc compatible hubs and wheels are relatively rare these days. No impossible to find, but options are limited.

  12. #12
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    Then what would this cable housing mount for? Hm, I guess I will have to borrow a disc wheel and check if those threads are worth something. Also thanks for the not about rear dropout.

  13. #13
    coprolite fietsbob's Avatar
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    edit in #9.. Sell it, and Buy what you really want, now.


    not only fork but wheels, the disc calipers brake levers cables and
    futzing over the installation, or paying to have it done, are all at higher
    retail , rather than OEM..
    New, kit adds about $100 to similar bike but V brakes..
    just the wheels will cost that..
    Last edited by fietsbob; 02-01-13 at 09:35 AM.

  14. #14
    Senior Member PatrickGSR94's Avatar
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    Rigid fork with both removable v-brake bosses and ISO standard caliper tabs - $50-$60 from Nashbar. Avid BB6 brakes about $120 total for both ends, and then replacement wheels with disc hubs, cheapest are around $150 on Nashbar. So you'd be spending at the very least just under $350 to switch to disc brakes.
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  15. #15
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    i have a lower end trek that i converted from 7 to 9 spoeed and to disc brakes but then i found a higher end trek with a cracked frame on cl.

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