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  1. #1
    Senior Member Syscrush's Avatar
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    Disk front brake?

    I'm thinking of switching my Sputnik to disk front brake so I can also swap to a non-machined front rim without having to go brakeless or run a coaster.

    The thing is, I have really mixed feelings about the look. I really like the function and looks of disks in general, just dunno about how it would look on a FG bike running a front brake only.

    Anybody running such a setup and want to post some pics? Any style cops wanna give me cheers or jeers for considering such a setup?

  2. #2
    coasterbrakelockup lz4005's Avatar
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    You could also run a drum front with non-machined rims. It wouldn't have as much stopping power as a disk, but might give better wet/snow performance than a rim brake.
    Ride lots, have fun, skid often!

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    don't worry, it will look sweet if you do it.

  4. #4
    Yo!
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    My buddy's GF did this on her fixed.

    It's the only one like it in town and it looks sweet.

    Just stick with a 140mm rotor.

  5. #5
    Low car diet JiveTurkey's Avatar
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    Go for it. If you're running road brake levers (drop or in-line/cross), you may want to get a road disc system. Avid makes a road version of their BB7 (arguably the best mechanical system).

    If you've got flat/riser bars, you can run a MTB setup (you'll have to use a MTB setup if you're going with hydraulic).
    Quote Originally Posted by slopvehicle View Post
    Not wearing a helmet makes me more aware of my surroundings. I find myself anticipating the hardness of concrete 50 or 100 feet in front of me, it's almost a zen-like connection between my face and the pavement.

  6. #6
    Real Men Ride Ordinaries fuzz2050's Avatar
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    disk front brakes are cool

    doing it just for the non machined rim isn't

  7. #7
    A guy who rides bikes Aaron_F's Avatar
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    I've always thought it was a pretty cool idea, especially if you ride in the wet a lot. Check out this interesting cable routing:


  8. #8
    Senior Member Syscrush's Avatar
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    Quote Originally Posted by fuzz2050 View Post
    disk front brakes are cool

    doing it just for the non machined rim isn't
    What about doing it to compensate 20 years after the fact for being a nerd in highschool?

    There's a lot I like about disks including the utility and the look - plus I have always thought that it was very cool how all of the kinetic energy of a 180+ lbs rider can be dissipated through that little piece of metal. It's awesome. I've thought about it off and on for quite a while but when I recently switched to a non-machined rear rim and liked the looks so much it got me thinking more seriously about finally doing this mod.

    Thanks to all who have provided advice/insight.

    The bike has bullhorns and a cross-top lever now and I intend to keep that configuration (although replace the lever with a carbon unit). I really like how my EC70 fork rides, but they don't make a disk version of it. Time for more research!

  9. #9
    Senior Member the_don's Avatar
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    Quote Originally Posted by Aaron_F View Post
    I've always thought it was a pretty cool idea, especially if you ride in the wet a lot. Check out this interesting cable routing:

    Bar spins!

  10. #10
    ROAD enthusiast revolator's Avatar
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    Aaron_F

    Do you have a pic of the whole bike? The bike looks pretty sweet.

    Thanks.

  11. #11
    Utilitarian Boy Gyeswho's Avatar
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    I modified my Surly with one. It works well in the wet, but then again my bike is nerded out ;P I ride fixed with two brakes, but I've made it an all weather treker so that's why I like the the options


  12. #12
    A guy who rides bikes Aaron_F's Avatar
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    Quote Originally Posted by revolator View Post
    Aaron_F

    Do you have a pic of the whole bike? The bike looks pretty sweet.

    Thanks.
    Sure, man! Not my bike, but here's some more info on it: http://www.traitorcycles.com/Bikes_Streetfighter.cfm

  13. #13
    Gentlemen. ADSR's Avatar
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    I think it would be awesome! I was also thinking recently about how rad a front disc brake would be.
    The bums will always lose.

  14. #14
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    Gyes,

    You have the coolest bikes man! That looks great.

  15. #15
    hello roadfix's Avatar
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    They're also great in long ass descents.
    .cinelli.olympic.surly.long.haul.trucker.kona.ku.surly.steamroller.
    .litespeed.classic.litespeed.firenze.bianchi.pista.dean.colonel.plus.more.

  16. #16
    8 Full Hours of Sleep roastbeef's Avatar
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    Quote Originally Posted by Aaron_F View Post
    Sure, man! Not my bike, but here's some more info on it: http://www.traitorcycles.com/Bikes_Streetfighter.cfm
    that gearing looks obscenely low. other than that, cool looking bike.

  17. #17
    `````````````` CaptainCool's Avatar
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    Quote Originally Posted by Yo! View Post
    Just stick with a 140mm rotor.
    Can you put a 140mm disc on the front? All I see is 140mm rear brakes, and Avid specifically says (PDF) that 140mm is rear only.

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    Quote Originally Posted by Aaron_F View Post
    I've always thought it was a pretty cool idea, especially if you ride in the wet a lot. Check out this interesting cable routing:

    How do you tighten your headset routing it this way? looks sweet though!

  19. #19
    `````````````` CaptainCool's Avatar
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    Quote Originally Posted by boostaddctn View Post
    How do you tighten your headset routing it this way? looks sweet though!
    It's got the usual star nut, just oversized with a hole down the middle of the bolt, something like this: http://www.benscycle.net/index.php?m...oducts_id=8419

    That one may require you to disconnect the brake before you can adjust the headset/stem.

  20. #20
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    Quote Originally Posted by CaptainCool View Post
    It's got the usual star nut, just oversized with a hole down the middle of the bolt, something like this: http://www.benscycle.net/index.php?m...oducts_id=8419

    That one may require you to disconnect the brake before you can adjust the headset/stem.
    Do they happen to make something like this in a compression style for a carbon fork by any chance?

  21. #21
    A guy who rides bikes Aaron_F's Avatar
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    Quote Originally Posted by CaptainCool View Post
    It's got the usual star nut, just oversized with a hole down the middle of the bolt, something like this: http://www.benscycle.net/index.php?m...oducts_id=8419

    That one may require you to disconnect the brake before you can adjust the headset/stem.
    It doesn't appear there's still a bolt in it at all. You can actually get away with removing the stem cap bolt completely once you've tightened the stem down on the steerer tube, since it no longer serves any purpose. Lots of weight weenies do it to lose a few grams.

  22. #22
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    Quote Originally Posted by Aaron_F View Post
    It doesn't appear there's still a bolt in it at all. You can actually get away with removing the stem cap bolt completely once you've tightened the stem down on the steerer tube, since it no longer serves any purpose. Lots of weight weenies do it to lose a few grams.
    You mean both the top cap and bolt, I assume? I've never seen this but it makes a twisted kind of sense.

  23. #23
    Yo!
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    Quote Originally Posted by CaptainCool View Post
    Can you put a 140mm disc on the front? All I see is 140mm rear brakes, and Avid specifically says (PDF) that 140mm is rear only.
    I believe that's just for BB mechanicals.

  24. #24
    `````````````` CaptainCool's Avatar
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    Quote Originally Posted by boostaddctn View Post
    Do they happen to make something like this in a compression style for a carbon fork by any chance?
    I doubt it, it's meant for BMX tricks, where carbon fiber is a bad idea.

    Quote Originally Posted by Aaron_F View Post
    It doesn't appear there's still a bolt in it at all. You can actually get away with removing the stem cap bolt completely once you've tightened the stem down on the steerer tube, since it no longer serves any purpose. Lots of weight weenies do it to lose a few grams.
    On that one you're probably right. I thought someone made hollow hex-head bolts, but the hollow bolts I'm finding now have a big external nut so you can adjust it without removing the cable.

    Quote Originally Posted by Yo! View Post
    I believe that's just for BB mechanicals.
    Well, yeah, but Avid hydraulics don't even mention 140mm, and I can't find any other manufacturer claiming a 140mm front disc.

  25. #25
    A guy who rides bikes Aaron_F's Avatar
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    Quote Originally Posted by mander View Post
    You mean both the top cap and bolt, I assume? I've never seen this but it makes a twisted kind of sense.
    Yeah, you can remove the cap and the bolt if you want. On the surface, it sounds like a bad idea, but you have to remember the cap and bolt only serve to pre-load the bearings. The stem clamp bolts are what actually hold the stem to the steerer tube.

    Assuming you left the cap and bolt on (as we mostly do) and the stem clamp bolts loosened, the cap and bolt would keep the stem from coming off the fork, but it wouldn't hold the front wheel in line with the handlebars anymore, so you're going to crash anyway.

    Basically, all the guy did with that bike was ditch the top cap bolt after tightening down the stem, then he slid the brake line down through the star nut and out the bottom of the steerer tube. I'm not sure what keeps the top cap from popping out of the top of the stem, but a tiny dab of silicone would probably do the trick.

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