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  1. #1276
    Senior Member jdefran's Avatar
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    Quote Originally Posted by neo_pop_71 View Post
    As much as I couldn't stand the frames with the brake bosses mounted under the chainstays as I hate U/Pitbull brakes, I loved the look of the clean and clear seatstays!
    Any other thoughts on u-brakes from the group? Considering a frame with them in the rear and not sure if its a deal breaker. Surely it if ends up fitting perfectly I'll definitely consider canti posts being added and a respray as the paint isn't very good anyway.
    Quote Originally Posted by Cache View Post
    And who doesn't have space for a folding bike??

  2. #1277
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    They can get clogged up if you are planning on riding in mud, and are a pain to set up. I've got some dia tech hombre's on my maruishi, and they stop really well and feel great.

  3. #1278
    GO BIG RED norwood's Avatar
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    Quote Originally Posted by jdefran View Post
    Any other thoughts on u-brakes from the group? Considering a frame with them in the rear and not sure if its a deal breaker. Surely it if ends up fitting perfectly I'll definitely consider canti posts being added and a respray as the paint isn't very good anyway.
    I had much the same thought process with my Scott re-do. I started out with a Tektro U-brake which really didn't work at all, I think the studs had too much spread. I then found this roller cam brake and fitted it with newer brake shoes. It works quite well, not overly powerfull, but adequate. Just make sure you use some proper levers. I probably won't bother with the canti posts now.
    1996 Bianchi Veloce
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    1992 Trek 820

  4. #1279
    Senior Member neo_pop_71's Avatar
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    Quote Originally Posted by jdefran View Post
    Any other thoughts on u-brakes from the group? Considering a frame with them in the rear and not sure if its a deal breaker. Surely it if ends up fitting perfectly I'll definitely consider canti posts being added and a respray as the paint isn't very good anyway.
    Hey jdefran, don't let a u-brake be the deal breaker, I've had a couple bikes over the years with chainstay brake bosses... you have options and are not locked in to running a u-brake. You can run a roller cam brake like norwood did on his Scott (pictured above) or an Odyssey Pitbull brake. My 1987 Panasonic Mountain Cat 7500 (MC-7500) came with full XT, the XT u-brake with the "shark fin" was pretty weak and needed to be replaced. I swapped out the u-brake with an Odyssey Pitbull brake and it worked much better with good stopping power. The Pitbull brake is similar to the original WTB/Suntour roller cam brake and has always been popular with the BMX crowd. If you choose to upgrade to the Odyssey Pitbull brake, just make sure you buy the original Pitbull brake and now the newer Pitbull 2. The Pitbull 2 is garbage! The PB2 brake uses adjustable post mounted brake pads, the original uses a nutted brake pad (I'll include some pics). I highly recommend finding a used Pitbull brake and getting some new pads, I think you'll be really pleased with the action and stopping power.
    87MountainCat7500.jpgOdysseyPitbull.jpgOdysseyPitbull2.jpg
    Last edited by neo_pop_71; 03-19-13 at 10:59 AM. Reason: pictures didn't upload
    I'd rather add more life to my years, than years to my life.

  5. #1280
    DRF aka Thrifty Bill wrk101's Avatar
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    I like rear U brakes. Its kind of a vintage touch, only out there a couple of years. Terrible for off road use, fine for road use.
    Last edited by wrk101; 03-19-13 at 07:41 PM.

  6. #1281
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    I've got a sweet Dia-Tech U-brake on the rear of one of my keeper MTBs. Don't know what model it is but I got a good deal at Niagara Cycles on it:


  7. #1282
    80's bikes FTW
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    Quote Originally Posted by wrk101 View Post
    I like rear U brakes. Its kind of a vintage touch, only out there a couple of years. Terrible for off road use, fine for road use.

    I just rode my 87 Panasonic mc-6500 with suntour roller-cam u brake last week on some trails. No mud out that day, but it was stopping extremely well...no issues with it being "weak" in any way so far.
    1988 Schwinn Prologue ,1985 Benotto Modelo 850 SS/Fixed , 1994 Univega Alpina 5.5 , 2011 Diamondback Response, 1997 Giant ATX 970, 1995 Specialized FSR , 2007 Litespeed Niota AL

  8. #1283
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Chainstay brakes are great for road use and off road use if you are riding in dry conditions... why anyone rides in the mud and messes up the trails is a big peeve of mine.

    The stopping power is great and not having any cables or brake behind the saddle keeps that area clear which is especially good if you are loading up a bike.

    They do take a little higher level of care in that you have to service them regularly and make sure the pads are not worn and are properly adjusted... worn pads will allow the brake to close farther and as it does can bring those pads closer to or have them touch the sidewall of the tyre which is a very quick way to destroy a perfectly good tyre.

    Have been rocking chain stay brakes for many many years and have never had an issue with them.

  9. #1284
    Chainstay Brake Mafia
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    chainstay brakes FOR LIFE!!! definitely nice for road use, though as 65er says you gotta check em often but their placement encourages you to forget about them
    1986 Diamondback Apex ~ 1988 Diamondback Ascent EX ~ 1989 Jamis Dakar ~ 1989 Specialized Stumpjumper Comp
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  10. #1285
    80's bikes FTW
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    Quote Originally Posted by frantik View Post
    chainstay brakes FOR LIFE!!! definitely nice for road use, though as 65er says you gotta check em often but their placement encourages you to forget about them
    haha, for real though the chainstays work really well and I love the look of them because it keeps a real clean look on the rear of the bike. Chainstay brakes are just too cool to look at. I never even knew they existed until just recently and now I have a bike with them and they can lock up the tire on command.... road or trail.
    1988 Schwinn Prologue ,1985 Benotto Modelo 850 SS/Fixed , 1994 Univega Alpina 5.5 , 2011 Diamondback Response, 1997 Giant ATX 970, 1995 Specialized FSR , 2007 Litespeed Niota AL

  11. #1286
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    Are chainstay mounted u-brakes mounted there because kids would flip their bikes upside down to work on them? All I know is that they can be a pain to work on.

  12. #1287
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Quote Originally Posted by likebike23 View Post
    Are chainstay mounted u-brakes mounted there because kids would flip their bikes upside down to work on them? All I know is that they can be a pain to work on.
    It provides maximum braking power when you mount the brake to the stiffest part of the frame... remember that these pre-date linear pull and disc brakes.

  13. #1288
    Chainstay Brake Mafia
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    there is also less chance of heel strike with chainstay mounted ubrakes
    1986 Diamondback Apex ~ 1988 Diamondback Ascent EX ~ 1989 Jamis Dakar ~ 1989 Specialized Stumpjumper Comp
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  14. #1289
    Senior Member Bikedued's Avatar
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    Oh forget it.. I was being very undued. ,,,BD
    Last edited by Bikedued; 03-19-13 at 08:41 PM.
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  15. #1290
    Goes to 11. striknein's Avatar
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    Quote Originally Posted by frantik View Post
    there is also less chance of heel strike with chainstay mounted ubrakes
    It can cause problems with big chainrings though.
    Quote Originally Posted by Nagrom_ View Post
    I actually just run calipers. Levers are for scrubs.

  16. #1291
    Senior Member Bikedued's Avatar
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    Quote Originally Posted by Sixty Fiver View Post
    It provides maximum braking power when you mount the brake to the stiffest part of the frame... remember that these pre-date linear pull and disc brakes.
    My buddy's mid 2000's Trek 4500 would flex the seat stays outward enough to notice without looking closely for it. I didn't think aluminum would be that flexible, but I was proven wrong, lol. I just checked my Super Sport single speed with "epicenter" seat stays. No such issue, at all. My late 90's Haro Escape? Only enough to notice, no more.,,,,BD
    Last edited by Bikedued; 03-19-13 at 09:12 PM.
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  17. #1292
    Senior Member Creme Brulee's Avatar
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    i find the modulation with a roller cam is unnnnparalleled!

  18. #1293
    Chainstay Brake Mafia
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    Quote Originally Posted by striknein View Post
    It can cause problems with big chainrings though.
    at one point I had a 52t ring on my univega with chainstay ubrakes and had no issues..
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  19. #1294
    Bicycle Repair Man !!! Sixty Fiver's Avatar
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    Quote Originally Posted by frantik View Post
    at one point I had a 52t ring on my univega with chainstay ubrakes and had no issues..
    Another exception, and perhaps this has to do with the era some bicycles were built... my '87 Cascade is running a 52 tooth ring and has abundant clearance and was originally fitted with a 48 tooth ring so there is not a lot of difference.

  20. #1295
    Jack of all trades anixi's Avatar
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    Sorry to change the subject to mtb conversions: I recently converted a Giant Rincon, 23.5" frame, to an 8/6 speed. The shifters are old 8-speed Campy, for a Shimergo combo. The rear is a 6-speed freewheel. V-brakes with Travel Agents (don't work all that well).

    Is it worth taking pics and posting here? Or is it too frankenbike for you snobs?
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  21. #1296
    WNG
    WNG is offline
    Spin Forest! Spin! WNG's Avatar
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    Quote Originally Posted by anixi View Post
    Sorry to change the subject to mtb conversions: I recently converted a Giant Rincon, 23.5" frame, to an 8/6 speed. The shifters are old 8-speed Campy, for a Shimergo combo. The rear is a 6-speed freewheel. V-brakes with Travel Agents (don't work all that well).

    Is it worth taking pics and posting here? Or is it too frankenbike for you snobs?

    I guess you haven't seen my Frankenbike.

    http://www.bikeforums.net/showthread...1#post15372644
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  22. #1297
    Senior Member neo_pop_71's Avatar
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    Quote Originally Posted by WNG View Post
    I guess you haven't seen my Frankenbike.

    http://www.bikeforums.net/showthread...1#post15372644
    C'mon WNG, your bike definitely points to the cleaner side on the Frankenmeter, compared to some builds we've seen, your Specialized is a solid goodie!

    Hey anixi, do it man... let's see some pics of your Rincon conversion, any bike sportin' some Campy instantly has some cred with me! I'm always game to check out a custom build, whether it's been massaged or strong-armed, I love seeing how other people get creative!
    I'd rather add more life to my years, than years to my life.

  23. #1298
    Senior Member SeanBonham's Avatar
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    Getting there...

  24. #1299
    DRF aka Thrifty Bill wrk101's Avatar
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    Part of my objective on doing a conversion was doing it while keeping the $$ down. So frankenbike is the norm. I like Shimano derailleurs and calipers (as long as they are higher end), but I also like Suntour barcons. And my brake levers are usually generic aero style. And so it goes.

  25. #1300
    one life on two wheels cobrabyte's Avatar
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    Quote Originally Posted by SeanBonham View Post
    Getting there...
    That's looking fantastic!

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